VirtualizingStackPanel Class

Definition

Namespace:

System.Windows.Controls

Assembly:

PresentationFramework.dll

Arranges and virtualizes content on a single line that is oriented either horizontally or vertically.

public ref class VirtualizingStackPanel : System::Windows::Controls::VirtualizingPanel, System::Windows::Controls::Primitives::IScrollInfo

public class VirtualizingStackPanel : System.Windows.Controls.VirtualizingPanel, System.Windows.Controls.Primitives.IScrollInfo

type VirtualizingStackPanel = class
    inherit VirtualizingPanel
    interface IScrollInfo

Public Class VirtualizingStackPanel
Inherits VirtualizingPanel
Implements IScrollInfo

Inheritance

Object

DispatcherObject

DependencyObject

Visual

UIElement

FrameworkElement

Panel

VirtualizingPanel

VirtualizingStackPanel

Derived

System.Windows.Controls.Primitives.DataGridRowsPresenter

System.Windows.Controls.Ribbon.Primitives.RibbonMenuItemsPanel

Implements

IScrollInfo

Examples

The following example shows how to bind to an XML data source and virtualize the items displayed in a ListBox element using Extensible Application Markup Language (XAML). Notice that the VirtualizingStackPanel.IsVirtualizing attached property is explicitly set to true.

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
      WindowTitle="VirtualizingStackPanel Sample" 
      Height="150"
      VerticalAlignment="Top">
    <Page.Resources>
        <XmlDataProvider x:Key="Leagues" Source="Leagues.xml" XPath="Leagues/League"/>
        
    <DataTemplate x:Key="NameDataStyle">
      <TextBlock Text="{Binding XPath=@name}" FontFamily="Arial" FontSize="12" Foreground="Black"/>
    </DataTemplate>
        
    </Page.Resources>
  <Border HorizontalAlignment="Left" 
          VerticalAlignment="Top" 
          BorderBrush="Black" 
          BorderThickness="2">
       <ScrollViewer>
      <StackPanel DataContext="{Binding Source={StaticResource Leagues}}">
          <TextBlock Text="{Binding XPath=@name}" FontFamily="Arial" FontSize="18" Foreground="Black"/>
              <ListBox VirtualizingStackPanel.IsVirtualizing="True" 
                       ItemsSource="{Binding XPath=Team}" 
                       ItemTemplate="{DynamicResource NameDataStyle}"/>      
      </StackPanel>
      </ScrollViewer>
  </Border>    
</Page>

The following example creates a ListBox and sets the VirtualizingStackPanel.VirtualizationMode attached property to Recycling.

<StackPanel>

  <StackPanel.Resources>
    <src:LotsOfItems x:Key="data"/>
  </StackPanel.Resources>

  <ListBox Height="150" ItemsSource="{StaticResource data}" 
             VirtualizingStackPanel.VirtualizationMode="Recycling" />

</StackPanel>

The following example shows the data used in the previous example.

public class LotsOfItems : ObservableCollection<String>
{
    public LotsOfItems()
    {
        for (int i = 0; i < 1000; ++i)
        {
            Add("item " + i.ToString());
        }
    }
}

Public Class LotsOfItems
    Inherits ObservableCollection(Of String)
    Public Sub New()
        For i As Integer = 0 To 999
            Add("item " & i.ToString())
        Next
    End Sub
End Class

Remarks

The standard layout system creates item containers and computes layout for each item associated with a list control. The word "virtualize" refers to a technique by which a subset of user interface (UI) elements are generated from a larger number of data items based on which items are visible on-screen. Generating many UI elements when only a few elements might be on the screen can adversely affect the performance of your application. The VirtualizingStackPanel calculates the number of visible items and works with the ItemContainerGenerator from an ItemsControl (such as ListBox or ListView) to create UI elements only for visible items.

Virtualization in a StackPanel only occurs when the items control contained in the panel creates its own item containers. You can ensure this happens by using data binding. In scenarios where item containers are created and added to the items control, a VirtualizingStackPanel offers no performance advantage over a StackPanel.

VirtualizingStackPanel is the default items host for the ListBox element. By default, the VirtualizingStackPanel.IsVirtualizing attached property is set to true.

When the VirtualizingStackPanel.IsVirtualizing attached property is set to false, a VirtualizingStackPanel behaves the same as an ordinary StackPanel.

Constructors

VirtualizingStackPanel()

Initializes a new instance of the VirtualizingStackPanel class.

Fields

CleanUpVirtualizedItemEvent	Identifies the CleanUpVirtualizedItem attached event.
IsVirtualizingProperty	Identifies the VirtualizingPanel.IsVirtualizing attached property.
OrientationProperty	Identifies the Orientation dependency property.
VirtualizationModeProperty	Identifies the VirtualizationMode attached property.

Properties

ActualHeight	Gets the rendered height of this element. (Inherited from FrameworkElement)
ActualWidth	Gets the rendered width of this element. (Inherited from FrameworkElement)
AllowDrop	Gets or sets a value indicating whether this element can be used as the target of a drag-and-drop operation. This is a dependency property. (Inherited from UIElement)
AreAnyTouchesCaptured	Gets a value that indicates whether at least one touch is captured to this element. (Inherited from UIElement)
AreAnyTouchesCapturedWithin	Gets a value that indicates whether at least one touch is captured to this element or to any child elements in its visual tree. (Inherited from UIElement)
AreAnyTouchesDirectlyOver	Gets a value that indicates whether at least one touch is pressed over this element. (Inherited from UIElement)
AreAnyTouchesOver	Gets a value that indicates whether at least one touch is pressed over this element or any child elements in its visual tree. (Inherited from UIElement)
Background	Gets or sets a Brush that is used to fill the area between the borders of a Panel. (Inherited from Panel)
BindingGroup	Gets or sets the BindingGroup that is used for the element. (Inherited from FrameworkElement)
BitmapEffect	Obsolete. Gets or sets a bitmap effect that applies directly to the rendered content for this element. This is a dependency property. (Inherited from UIElement)
BitmapEffectInput	Obsolete. Gets or sets an input source for the bitmap effect that applies directly to the rendered content for this element. This is a dependency property. (Inherited from UIElement)
CacheMode	Gets or sets a cached representation of the UIElement. (Inherited from UIElement)
CanHierarchicallyScrollAndVirtualize	Gets a value that indicates whether the VirtualizingPanel can virtualize items that are grouped or organized in a hierarchy. (Inherited from VirtualizingPanel)
CanHierarchicallyScrollAndVirtualizeCore	Gets value that indicates whether the VirtualizingStackPanel can virtualize items that are grouped or organized in a hierarchy.
CanHorizontallyScroll	Gets or sets a value that indicates whether a VirtualizingStackPanel can scroll in the horizontal dimension.
CanVerticallyScroll	Gets or sets a value that indicates whether content can scroll in the vertical dimension.
Children	Gets a UIElementCollection of child elements of this Panel. (Inherited from Panel)
Clip	Gets or sets the geometry used to define the outline of the contents of an element. This is a dependency property. (Inherited from UIElement)
ClipToBounds	Gets or sets a value indicating whether to clip the content of this element (or content coming from the child elements of this element) to fit into the size of the containing element. This is a dependency property. (Inherited from UIElement)
CommandBindings	Gets a collection of CommandBinding objects associated with this element. A CommandBinding enables command handling for this element, and declares the linkage between a command, its events, and the handlers attached by this element. (Inherited from UIElement)
ContextMenu	Gets or sets the context menu element that should appear whenever the context menu is requested through user interface (UI) from within this element. (Inherited from FrameworkElement)
Cursor	Gets or sets the cursor that displays when the mouse pointer is over this element. (Inherited from FrameworkElement)
DataContext	Gets or sets the data context for an element when it participates in data binding. (Inherited from FrameworkElement)
DefaultStyleKey	Gets or sets the key to use to reference the style for this control, when theme styles are used or defined. (Inherited from FrameworkElement)
DependencyObjectType	Gets the DependencyObjectType that wraps the CLR type of this instance. (Inherited from DependencyObject)
DesiredSize	Gets the size that this element computed during the measure pass of the layout process. (Inherited from UIElement)
Dispatcher	Gets the Dispatcher this DispatcherObject is associated with. (Inherited from DispatcherObject)
Effect	Gets or sets the bitmap effect to apply to the UIElement. This is a dependency property. (Inherited from UIElement)
ExtentHeight	Gets a value that contains the vertical size of the extent.
ExtentWidth	Gets a value that contains the horizontal size of the extent.
FlowDirection	Gets or sets the direction that text and other user interface (UI) elements flow within any parent element that controls their layout. (Inherited from FrameworkElement)
Focusable	Gets or sets a value that indicates whether the element can receive focus. This is a dependency property. (Inherited from UIElement)
FocusVisualStyle	Gets or sets a property that enables customization of appearance, effects, or other style characteristics that will apply to this element when it captures keyboard focus. (Inherited from FrameworkElement)
ForceCursor	Gets or sets a value that indicates whether this FrameworkElement should force the user interface (UI) to render the cursor as declared by the Cursor property. (Inherited from FrameworkElement)
HasAnimatedProperties	Gets a value indicating whether this element has any animated properties. (Inherited from UIElement)
HasEffectiveKeyboardFocus	Gets a value that indicates whether the UIElement has focus. (Inherited from UIElement)
HasLogicalOrientation	Gets a value that indicates if this VirtualizingStackPanel has a vertical or horizontal orientation.
HasLogicalOrientationPublic	Gets a value that indicates whether this Panel arranges its descendants in a single dimension. (Inherited from Panel)
Height	Gets or sets the suggested height of the element. (Inherited from FrameworkElement)
HorizontalAlignment	Gets or sets the horizontal alignment characteristics applied to this element when it is composed within a parent element, such as a panel or items control. (Inherited from FrameworkElement)
HorizontalOffset	Gets a value that contains the horizontal offset of the scrolled content.
InheritanceBehavior	Gets or sets the scope limits for property value inheritance, resource key lookup, and RelativeSource FindAncestor lookup. (Inherited from FrameworkElement)
InputBindings	Gets the collection of input bindings associated with this element. (Inherited from UIElement)
InputScope	Gets or sets the context for input used by this FrameworkElement. (Inherited from FrameworkElement)
InternalChildren	Gets a UIElementCollection of child elements. (Inherited from Panel)
IsArrangeValid	Gets a value indicating whether the computed size and position of child elements in this element's layout are valid. (Inherited from UIElement)
IsEnabled	Gets or sets a value indicating whether this element is enabled in the user interface (UI). This is a dependency property. (Inherited from UIElement)
IsEnabledCore	Gets a value that becomes the return value of IsEnabled in derived classes. (Inherited from UIElement)
IsFocused	Gets a value that determines whether this element has logical focus. This is a dependency property. (Inherited from UIElement)
IsHitTestVisible	Gets or sets a value that declares whether this element can possibly be returned as a hit test result from some portion of its rendered content. This is a dependency property. (Inherited from UIElement)
IsInitialized	Gets a value that indicates whether this element has been initialized, either during processing by a XAML processor, or by explicitly having its EndInit() method called. (Inherited from FrameworkElement)
IsInputMethodEnabled	Gets a value indicating whether an input method system, such as an Input Method Editor (IME), is enabled for processing the input to this element. (Inherited from UIElement)
IsItemsHost	Gets or sets a value that indicates that this Panel is a container for user interface (UI) items that are generated by an ItemsControl. (Inherited from Panel)
IsKeyboardFocused	Gets a value indicating whether this element has keyboard focus. This is a dependency property. (Inherited from UIElement)
IsKeyboardFocusWithin	Gets a value indicating whether keyboard focus is anywhere within the element or its visual tree child elements. This is a dependency property. (Inherited from UIElement)
IsLoaded	Gets a value that indicates whether this element has been loaded for presentation. (Inherited from FrameworkElement)
IsManipulationEnabled	Gets or sets a value that indicates whether manipulation events are enabled on this UIElement. (Inherited from UIElement)
IsMeasureValid	Gets a value indicating whether the current size returned by layout measure is valid. (Inherited from UIElement)
IsMouseCaptured	Gets a value indicating whether the mouse is captured to this element. This is a dependency property. (Inherited from UIElement)
IsMouseCaptureWithin	Gets a value that determines whether mouse capture is held by this element or by child elements in its visual tree. This is a dependency property. (Inherited from UIElement)
IsMouseDirectlyOver	Gets a value that indicates whether the position of the mouse pointer corresponds to hit test results, which take element compositing into account. This is a dependency property. (Inherited from UIElement)
IsMouseOver	Gets a value indicating whether the mouse pointer is located over this element (including child elements in the visual tree). This is a dependency property. (Inherited from UIElement)
IsSealed	Gets a value that indicates whether this instance is currently sealed (read-only). (Inherited from DependencyObject)
IsStylusCaptured	Gets a value indicating whether the stylus is captured by this element. This is a dependency property. (Inherited from UIElement)
IsStylusCaptureWithin	Gets a value that determines whether stylus capture is held by this element, or an element within the element bounds and its visual tree. This is a dependency property. (Inherited from UIElement)
IsStylusDirectlyOver	Gets a value that indicates whether the stylus position corresponds to hit test results, which take element compositing into account. This is a dependency property. (Inherited from UIElement)
IsStylusOver	Gets a value indicating whether the stylus cursor is located over this element (including visual child elements). This is a dependency property. (Inherited from UIElement)
IsVisible	Gets a value indicating whether this element is visible in the user interface (UI). This is a dependency property. (Inherited from UIElement)
ItemContainerGenerator	Gets a value that identifies the ItemContainerGenerator for this VirtualizingPanel. (Inherited from VirtualizingPanel)
Language	Gets or sets localization/globalization language information that applies to an element. (Inherited from FrameworkElement)
LayoutTransform	Gets or sets a graphics transformation that should apply to this element when layout is performed. (Inherited from FrameworkElement)
LogicalChildren	Gets an enumerator that can iterate the logical child elements of this Panel element. (Inherited from Panel)
LogicalOrientation	Gets a value that represents the Orientation of the VirtualizingStackPanel.
LogicalOrientationPublic	The Orientation of the panel, if the panel supports layout in only a single dimension. (Inherited from Panel)
Margin	Gets or sets the outer margin of an element. (Inherited from FrameworkElement)
MaxHeight	Gets or sets the maximum height constraint of the element. (Inherited from FrameworkElement)
MaxWidth	Gets or sets the maximum width constraint of the element. (Inherited from FrameworkElement)
MinHeight	Gets or sets the minimum height constraint of the element. (Inherited from FrameworkElement)
MinWidth	Gets or sets the minimum width constraint of the element. (Inherited from FrameworkElement)
Name	Gets or sets the identifying name of the element. The name provides a reference so that code-behind, such as event handler code, can refer to a markup element after it is constructed during processing by a XAML processor. (Inherited from FrameworkElement)
Opacity	Gets or sets the opacity factor applied to the entire UIElement when it is rendered in the user interface (UI). This is a dependency property. (Inherited from UIElement)
OpacityMask	Gets or sets an opacity mask, as a Brush implementation that is applied to any alpha-channel masking for the rendered content of this element. This is a dependency property. (Inherited from UIElement)
Orientation	Gets or sets a value that describes the horizontal or vertical orientation of stacked content.
OverridesDefaultStyle	Gets or sets a value that indicates whether this element incorporates style properties from theme styles. (Inherited from FrameworkElement)
Parent	Gets the logical parent element of this element. (Inherited from FrameworkElement)
PersistId	Obsolete. Gets a value that uniquely identifies this element. (Inherited from UIElement)
RenderSize	Gets (or sets) the final render size of this element. (Inherited from UIElement)
RenderTransform	Gets or sets transform information that affects the rendering position of this element. This is a dependency property. (Inherited from UIElement)
RenderTransformOrigin	Gets or sets the center point of any possible render transform declared by RenderTransform, relative to the bounds of the element. This is a dependency property. (Inherited from UIElement)
Resources	Gets or sets the locally-defined resource dictionary. (Inherited from FrameworkElement)
ScrollOwner	Gets or sets a value that identifies the container that controls scrolling behavior in this VirtualizingStackPanel.
SnapsToDevicePixels	Gets or sets a value that determines whether rendering for this element should use device-specific pixel settings during rendering. This is a dependency property. (Inherited from UIElement)
Style	Gets or sets the style used by this element when it is rendered. (Inherited from FrameworkElement)
StylusPlugIns	Gets a collection of all stylus plug-in (customization) objects associated with this element. (Inherited from UIElement)
Tag	Gets or sets an arbitrary object value that can be used to store custom information about this element. (Inherited from FrameworkElement)
TemplatedParent	Gets a reference to the template parent of this element. This property is not relevant if the element was not created through a template. (Inherited from FrameworkElement)
ToolTip	Gets or sets the tool-tip object that is displayed for this element in the user interface (UI). (Inherited from FrameworkElement)
TouchesCaptured	Gets all touch devices that are captured to this element. (Inherited from UIElement)
TouchesCapturedWithin	Gets all touch devices that are captured to this element or any child elements in its visual tree. (Inherited from UIElement)
TouchesDirectlyOver	Gets all touch devices that are over this element. (Inherited from UIElement)
TouchesOver	Gets all touch devices that are over this element or any child elements in its visual tree. (Inherited from UIElement)
Triggers	Gets the collection of triggers established directly on this element, or in child elements. (Inherited from FrameworkElement)
Uid	Gets or sets the unique identifier (for localization) for this element. This is a dependency property. (Inherited from UIElement)
UseLayoutRounding	Gets or sets a value that indicates whether layout rounding should be applied to this element's size and position during layout. (Inherited from FrameworkElement)
VerticalAlignment	Gets or sets the vertical alignment characteristics applied to this element when it is composed within a parent element such as a panel or items control. (Inherited from FrameworkElement)
VerticalOffset	Gets a value that contains the vertical offset of the scrolled content.
ViewportHeight	Gets a value that contains the vertical size of the viewport of the content.
ViewportWidth	Gets a value that contains the horizontal size of the viewport of the content.
Visibility	Gets or sets the user interface (UI) visibility of this element. This is a dependency property. (Inherited from UIElement)
VisualBitmapEffect	Obsolete. Gets or sets the BitmapEffect value for the Visual. (Inherited from Visual)
VisualBitmapEffectInput	Obsolete. Gets or sets the BitmapEffectInput value for the Visual. (Inherited from Visual)
VisualBitmapScalingMode	Gets or sets the BitmapScalingMode for the Visual. (Inherited from Visual)
VisualCacheMode	Gets or sets a cached representation of the Visual. (Inherited from Visual)
VisualChildrenCount	Gets the number of child Visual objects in this instance of Panel. (Inherited from Panel)
VisualClearTypeHint	Gets or sets the ClearTypeHint that determines how ClearType is rendered in the Visual. (Inherited from Visual)
VisualClip	Gets or sets the clip region of the Visual as a Geometry value. (Inherited from Visual)
VisualEdgeMode	Gets or sets the edge mode of the Visual as an EdgeMode value. (Inherited from Visual)
VisualEffect	Gets or sets the bitmap effect to apply to the Visual. (Inherited from Visual)
VisualOffset	Gets or sets the offset value of the visual object. (Inherited from Visual)
VisualOpacity	Gets or sets the opacity of the Visual. (Inherited from Visual)
VisualOpacityMask	Gets or sets the Brush value that represents the opacity mask of the Visual. (Inherited from Visual)
VisualParent	Gets the visual tree parent of the visual object. (Inherited from Visual)
VisualScrollableAreaClip	Gets or sets a clipped scrollable area for the Visual. (Inherited from Visual)
VisualTextHintingMode	Gets or sets the TextHintingMode of the Visual. (Inherited from Visual)
VisualTextRenderingMode	Gets or sets the TextRenderingMode of the Visual. (Inherited from Visual)
VisualTransform	Gets or sets the Transform value for the Visual. (Inherited from Visual)
VisualXSnappingGuidelines	Gets or sets the x-coordinate (vertical) guideline collection. (Inherited from Visual)
VisualYSnappingGuidelines	Gets or sets the y-coordinate (horizontal) guideline collection. (Inherited from Visual)
Width	Gets or sets the width of the element. (Inherited from FrameworkElement)

Methods

AddCleanUpVirtualizedItemHandler(DependencyObject, CleanUpVirtualizedItemEventHandler)	Adds an event handler for the CleanUpVirtualizedItem attached event.
AddHandler(RoutedEvent, Delegate, Boolean)	Adds a routed event handler for a specified routed event, adding the handler to the handler collection on the current element. Specify handledEventsToo as true to have the provided handler be invoked for routed event that had already been marked as handled by another element along the event route. (Inherited from UIElement)
AddHandler(RoutedEvent, Delegate)	Adds a routed event handler for a specified routed event, adding the handler to the handler collection on the current element. (Inherited from UIElement)
AddInternalChild(UIElement)	Adds the specified UIElement to the InternalChildren collection of a VirtualizingPanel element. (Inherited from VirtualizingPanel)
AddLogicalChild(Object)	Adds the provided object to the logical tree of this element. (Inherited from FrameworkElement)
AddToEventRoute(EventRoute, RoutedEventArgs)	Adds handlers to the specified EventRoute for the current UIElement event handler collection. (Inherited from UIElement)
AddVisualChild(Visual)	Defines the parent-child relationship between two visuals. (Inherited from Visual)
ApplyAnimationClock(DependencyProperty, AnimationClock, HandoffBehavior)	Applies an animation to a specified dependency property on this element, with the ability to specify what happens if the property already has a running animation. (Inherited from UIElement)
ApplyAnimationClock(DependencyProperty, AnimationClock)	Applies an animation to a specified dependency property on this element. Any existing animations are stopped and replaced with the new animation. (Inherited from UIElement)
ApplyTemplate()	Builds the current template's visual tree if necessary, and returns a value that indicates whether the visual tree was rebuilt by this call. (Inherited from FrameworkElement)
Arrange(Rect)	Positions child elements and determines a size for a UIElement. Parent elements call this method from their ArrangeCore(Rect) implementation (or a WPF framework-level equivalent) to form a recursive layout update. This method constitutes the second pass of a layout update. (Inherited from UIElement)
ArrangeCore(Rect)	Implements ArrangeCore(Rect) (defined as virtual in UIElement) and seals the implementation. (Inherited from FrameworkElement)
ArrangeOverride(Size)	Arranges the content of a VirtualizingStackPanel element.
BeginAnimation(DependencyProperty, AnimationTimeline, HandoffBehavior)	Starts a specific animation for a specified animated property on this element, with the option of specifying what happens if the property already has a running animation. (Inherited from UIElement)
BeginAnimation(DependencyProperty, AnimationTimeline)	Starts an animation for a specified animated property on this element. (Inherited from UIElement)
BeginInit()	Starts the initialization process for this element. (Inherited from FrameworkElement)
BeginStoryboard(Storyboard, HandoffBehavior, Boolean)	Begins the sequence of actions contained in the provided storyboard, with specified state for control of the animation after it is started. (Inherited from FrameworkElement)
BeginStoryboard(Storyboard, HandoffBehavior)	Begins the sequence of actions contained in the provided storyboard, with options specified for what should happen if the property is already animated. (Inherited from FrameworkElement)
BeginStoryboard(Storyboard)	Begins the sequence of actions that are contained in the provided storyboard. (Inherited from FrameworkElement)
BringIndexIntoView(Int32)	Generates the item at the specified index position and brings it into view.
BringIndexIntoViewPublic(Int32)	Generates the item at the specified index location and makes it visible. (Inherited from VirtualizingPanel)
BringIntoView()	Attempts to bring this element into view, within any scrollable regions it is contained within. (Inherited from FrameworkElement)
BringIntoView(Rect)	Attempts to bring the provided region size of this element into view, within any scrollable regions it is contained within. (Inherited from FrameworkElement)
CaptureMouse()	Attempts to force capture of the mouse to this element. (Inherited from UIElement)
CaptureStylus()	Attempts to force capture of the stylus to this element. (Inherited from UIElement)
CaptureTouch(TouchDevice)	Attempts to force capture of a touch to this element. (Inherited from UIElement)
CheckAccess()	Determines whether the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject)
ClearValue(DependencyProperty)	Clears the local value of a property. The property to be cleared is specified by a DependencyProperty identifier. (Inherited from DependencyObject)
ClearValue(DependencyPropertyKey)	Clears the local value of a read-only property. The property to be cleared is specified by a DependencyPropertyKey. (Inherited from DependencyObject)
CoerceValue(DependencyProperty)	Coerces the value of the specified dependency property. This is accomplished by invoking any CoerceValueCallback function specified in property metadata for the dependency property as it exists on the calling DependencyObject. (Inherited from DependencyObject)
CreateUIElementCollection(FrameworkElement)	Creates a new UIElementCollection. (Inherited from Panel)
EndInit()	Indicates that the initialization process for the element is complete. (Inherited from FrameworkElement)
Equals(Object)	Determines whether a provided DependencyObject is equivalent to the current DependencyObject. (Inherited from DependencyObject)
FindCommonVisualAncestor(DependencyObject)	Returns the common ancestor of two visual objects. (Inherited from Visual)
FindName(String)	Finds an element that has the provided identifier name. (Inherited from FrameworkElement)
FindResource(Object)	Searches for a resource with the specified key, and throws an exception if the requested resource is not found. (Inherited from FrameworkElement)
Focus()	Attempts to set focus to this element. (Inherited from UIElement)
GetAnimationBaseValue(DependencyProperty)	Returns the base property value for the specified property on this element, disregarding any possible animated value from a running or stopped animation. (Inherited from UIElement)
GetBindingExpression(DependencyProperty)	Returns the BindingExpression that represents the binding on the specified property. (Inherited from FrameworkElement)
GetHashCode()	Gets a hash code for this DependencyObject. (Inherited from DependencyObject)
GetItemOffset(UIElement)	Returns the position of the specified item, relative to the VirtualizingPanel. (Inherited from VirtualizingPanel)
GetItemOffsetCore(UIElement)	Returns the position of the specified item, relative to the VirtualizingStackPanel.
GetLayoutClip(Size)	Returns a geometry for a clipping mask. The mask applies if the layout system attempts to arrange an element that is larger than the available display space. (Inherited from FrameworkElement)
GetLocalValueEnumerator()	Creates a specialized enumerator for determining which dependency properties have locally set values on this DependencyObject. (Inherited from DependencyObject)
GetTemplateChild(String)	Returns the named element in the visual tree of an instantiated ControlTemplate. (Inherited from FrameworkElement)
GetType()	Gets the Type of the current instance. (Inherited from Object)
GetUIParentCore()	Returns an alternative logical parent for this element if there is no visual parent. (Inherited from FrameworkElement)
GetValue(DependencyProperty)	Returns the current effective value of a dependency property on this instance of a DependencyObject. (Inherited from DependencyObject)
GetVisualChild(Int32)	Gets a Visual child of this Panel at the specified index position. (Inherited from Panel)
HitTestCore(GeometryHitTestParameters)	Implements HitTestCore(GeometryHitTestParameters) to supply base element hit testing behavior (returning GeometryHitTestResult). (Inherited from UIElement)
HitTestCore(PointHitTestParameters)	Implements HitTestCore(PointHitTestParameters) to supply base element hit testing behavior (returning HitTestResult). (Inherited from UIElement)
InputHitTest(Point)	Returns the input element within the current element that is at the specified coordinates, relative to the current element's origin. (Inherited from UIElement)
InsertInternalChild(Int32, UIElement)	Adds the specified UIElement to the InternalChildren collection of a VirtualizingPanel element at the specified index position. (Inherited from VirtualizingPanel)
InvalidateArrange()	Invalidates the arrange state (layout) for the element. After the invalidation, the element will have its layout updated, which will occur asynchronously unless subsequently forced by UpdateLayout(). (Inherited from UIElement)
InvalidateMeasure()	Invalidates the measurement state (layout) for the element. (Inherited from UIElement)
InvalidateProperty(DependencyProperty)	Re-evaluates the effective value for the specified dependency property. (Inherited from DependencyObject)
InvalidateVisual()	Invalidates the rendering of the element, and forces a complete new layout pass. OnRender(DrawingContext) is called after the layout cycle is completed. (Inherited from UIElement)
IsAncestorOf(DependencyObject)	Determines whether the visual object is an ancestor of the descendant visual object. (Inherited from Visual)
IsDescendantOf(DependencyObject)	Determines whether the visual object is a descendant of the ancestor visual object. (Inherited from Visual)
LineDown()	Scrolls content downward by one logical unit.
LineLeft()	Scrolls content to the left by one logical unit.
LineRight()	Scrolls content to the right by one logical unit.
LineUp()	Scrolls content upward by one logical unit.
MakeVisible(Visual, Rect)	Scrolls to the specified coordinates and makes that portion of a Visual visible.
Measure(Size)	Updates the DesiredSize of a UIElement. Parent elements call this method from their own MeasureCore(Size) implementations to form a recursive layout update. Calling this method constitutes the first pass (the "Measure" pass) of a layout update. (Inherited from UIElement)
MeasureCore(Size)	Implements basic measure-pass layout system behavior for FrameworkElement. (Inherited from FrameworkElement)
MeasureOverride(Size)	Measures the child elements of a VirtualizingStackPanel in anticipation of arranging them during the ArrangeOverride(Size) pass.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
MouseWheelDown()	Scrolls content logically downward in response to a downward click of the mouse wheel button.
MouseWheelLeft()	Scrolls content logically to the left in response to a left click of the mouse wheel button.
MouseWheelRight()	Scrolls content logically to the right in response to a right click of the mouse wheel button.
MouseWheelUp()	Scrolls content logically upward in response to an upward click of the mouse wheel button.
MoveFocus(TraversalRequest)	Moves the keyboard focus away from this element and to another element in a provided traversal direction. (Inherited from FrameworkElement)
OnAccessKey(AccessKeyEventArgs)	Provides class handling for when an access key that is meaningful for this element is invoked. (Inherited from UIElement)
OnApplyTemplate()	When overridden in a derived class, is invoked whenever application code or internal processes call ApplyTemplate(). (Inherited from FrameworkElement)
OnChildDesiredSizeChanged(UIElement)	Supports layout behavior when a child element is resized. (Inherited from UIElement)
OnCleanUpVirtualizedItem(CleanUpVirtualizedItemEventArgs)	Called when an item that is hosted by the VirtualizingStackPanel is re-virtualized.
OnClearChildren()	Called when the collection of child elements is cleared by the base Panel class.
OnContextMenuClosing(ContextMenuEventArgs)	Invoked whenever an unhandled ContextMenuClosing routed event reaches this class in its route. Implement this method to add class handling for this event. (Inherited from FrameworkElement)
OnContextMenuOpening(ContextMenuEventArgs)	Invoked whenever an unhandled ContextMenuOpening routed event reaches this class in its route. Implement this method to add class handling for this event. (Inherited from FrameworkElement)
OnCreateAutomationPeer()	Returns class-specific AutomationPeer implementations for the Windows Presentation Foundation (WPF) infrastructure. (Inherited from UIElement)
OnDpiChanged(DpiScale, DpiScale)	Called when the DPI at which this View is rendered changes. (Inherited from Visual)
OnDragEnter(DragEventArgs)	Invoked when an unhandled DragEnter attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnDragLeave(DragEventArgs)	Invoked when an unhandled DragLeave attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnDragOver(DragEventArgs)	Invoked when an unhandled DragOver attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnDrop(DragEventArgs)	Invoked when an unhandled DragEnter attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnGiveFeedback(GiveFeedbackEventArgs)	Invoked when an unhandled GiveFeedback attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnGotFocus(RoutedEventArgs)	Invoked whenever an unhandled GotFocus event reaches this element in its route. (Inherited from FrameworkElement)
OnGotKeyboardFocus(KeyboardFocusChangedEventArgs)	Invoked when an unhandled GotKeyboardFocus attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnGotMouseCapture(MouseEventArgs)	Invoked when an unhandled GotMouseCapture attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnGotStylusCapture(StylusEventArgs)	Invoked when an unhandled GotStylusCapture attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnGotTouchCapture(TouchEventArgs)	Provides class handling for the GotTouchCapture routed event that occurs when a touch is captured to this element. (Inherited from UIElement)
OnInitialized(EventArgs)	Raises the Initialized event. This method is invoked whenever IsInitialized is set to true internally. (Inherited from FrameworkElement)
OnIsItemsHostChanged(Boolean, Boolean)	Indicates that the IsItemsHost property value has changed. (Inherited from Panel)
OnIsKeyboardFocusedChanged(DependencyPropertyChangedEventArgs)	Invoked when an unhandled IsKeyboardFocusedChanged event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnIsKeyboardFocusWithinChanged(DependencyPropertyChangedEventArgs)	Invoked just before the IsKeyboardFocusWithinChanged event is raised by this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnIsMouseCapturedChanged(DependencyPropertyChangedEventArgs)	Invoked when an unhandled IsMouseCapturedChanged event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnIsMouseCaptureWithinChanged(DependencyPropertyChangedEventArgs)	Invoked when an unhandled IsMouseCaptureWithinChanged event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnIsMouseDirectlyOverChanged(DependencyPropertyChangedEventArgs)	Invoked when an unhandled IsMouseDirectlyOverChanged event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnIsStylusCapturedChanged(DependencyPropertyChangedEventArgs)	Invoked when an unhandled IsStylusCapturedChanged event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnIsStylusCaptureWithinChanged(DependencyPropertyChangedEventArgs)	Invoked when an unhandled IsStylusCaptureWithinChanged event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnIsStylusDirectlyOverChanged(DependencyPropertyChangedEventArgs)	Invoked when an unhandled IsStylusDirectlyOverChanged event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnItemsChanged(Object, ItemsChangedEventArgs)	Called when the Items collection that is associated with the ItemsControl for this Panel changes.
OnKeyDown(KeyEventArgs)	Invoked when an unhandled KeyDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnKeyUp(KeyEventArgs)	Invoked when an unhandled KeyUp attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnLostFocus(RoutedEventArgs)	Raises the LostFocus routed event by using the event data that is provided. (Inherited from UIElement)
OnLostKeyboardFocus(KeyboardFocusChangedEventArgs)	Invoked when an unhandled LostKeyboardFocus attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnLostMouseCapture(MouseEventArgs)	Invoked when an unhandled LostMouseCapture attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnLostStylusCapture(StylusEventArgs)	Invoked when an unhandled LostStylusCapture attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnLostTouchCapture(TouchEventArgs)	Provides class handling for the LostTouchCapture routed event that occurs when this element loses a touch capture. (Inherited from UIElement)
OnManipulationBoundaryFeedback(ManipulationBoundaryFeedbackEventArgs)	Called when the ManipulationBoundaryFeedback event occurs. (Inherited from UIElement)
OnManipulationCompleted(ManipulationCompletedEventArgs)	Called when the ManipulationCompleted event occurs. (Inherited from UIElement)
OnManipulationDelta(ManipulationDeltaEventArgs)	Called when the ManipulationDelta event occurs. (Inherited from UIElement)
OnManipulationInertiaStarting(ManipulationInertiaStartingEventArgs)	Called when the ManipulationInertiaStarting event occurs. (Inherited from UIElement)
OnManipulationStarted(ManipulationStartedEventArgs)	Called when the ManipulationStarted event occurs. (Inherited from UIElement)
OnManipulationStarting(ManipulationStartingEventArgs)	Provides class handling for the ManipulationStarting routed event that occurs when the manipulation processor is first created. (Inherited from UIElement)
OnMouseDown(MouseButtonEventArgs)	Invoked when an unhandled MouseDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseEnter(MouseEventArgs)	Invoked when an unhandled MouseEnter attached event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseLeave(MouseEventArgs)	Invoked when an unhandled MouseLeave attached event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseLeftButtonDown(MouseButtonEventArgs)	Invoked when an unhandled MouseLeftButtonDown routed event is raised on this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseLeftButtonUp(MouseButtonEventArgs)	Invoked when an unhandled MouseLeftButtonUp routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseMove(MouseEventArgs)	Invoked when an unhandled MouseMove attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseRightButtonDown(MouseButtonEventArgs)	Invoked when an unhandled MouseRightButtonDown routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseRightButtonUp(MouseButtonEventArgs)	Invoked when an unhandled MouseRightButtonUp routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseUp(MouseButtonEventArgs)	Invoked when an unhandled MouseUp routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnMouseWheel(MouseWheelEventArgs)	Invoked when an unhandled MouseWheel attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewDragEnter(DragEventArgs)	Invoked when an unhandled PreviewDragEnter attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewDragLeave(DragEventArgs)	Invoked when an unhandled PreviewDragLeave attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewDragOver(DragEventArgs)	Invoked when an unhandled PreviewDragOver attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewDrop(DragEventArgs)	Invoked when an unhandled PreviewDrop attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewGiveFeedback(GiveFeedbackEventArgs)	Invoked when an unhandled PreviewGiveFeedback attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewGotKeyboardFocus(KeyboardFocusChangedEventArgs)	Invoked when an unhandled PreviewGotKeyboardFocus attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewKeyDown(KeyEventArgs)	Invoked when an unhandled PreviewKeyDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewKeyUp(KeyEventArgs)	Invoked when an unhandled PreviewKeyUp attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewLostKeyboardFocus(KeyboardFocusChangedEventArgs)	Invoked when an unhandled PreviewKeyDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewMouseDown(MouseButtonEventArgs)	Invoked when an unhandled PreviewMouseDown attached routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewMouseLeftButtonDown(MouseButtonEventArgs)	Invoked when an unhandled PreviewMouseLeftButtonDown routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewMouseLeftButtonUp(MouseButtonEventArgs)	Invoked when an unhandled PreviewMouseLeftButtonUp routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewMouseMove(MouseEventArgs)	Invoked when an unhandled PreviewMouseMove attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewMouseRightButtonDown(MouseButtonEventArgs)	Invoked when an unhandled PreviewMouseRightButtonDown routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewMouseRightButtonUp(MouseButtonEventArgs)	Invoked when an unhandled PreviewMouseRightButtonUp routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewMouseUp(MouseButtonEventArgs)	Invoked when an unhandled PreviewMouseUp attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewMouseWheel(MouseWheelEventArgs)	Invoked when an unhandled PreviewMouseWheel attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewQueryContinueDrag(QueryContinueDragEventArgs)	Invoked when an unhandled PreviewQueryContinueDrag attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusButtonDown(StylusButtonEventArgs)	Invoked when an unhandled PreviewStylusButtonDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusButtonUp(StylusButtonEventArgs)	Invoked when an unhandled PreviewStylusButtonUp attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusDown(StylusDownEventArgs)	Invoked when an unhandled PreviewStylusDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusInAirMove(StylusEventArgs)	Invoked when an unhandled PreviewStylusInAirMove attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusInRange(StylusEventArgs)	Invoked when an unhandled PreviewStylusInRange attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusMove(StylusEventArgs)	Invoked when an unhandled PreviewStylusMove attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusOutOfRange(StylusEventArgs)	Invoked when an unhandled PreviewStylusOutOfRange attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusSystemGesture(StylusSystemGestureEventArgs)	Invoked when an unhandled PreviewStylusSystemGesture attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewStylusUp(StylusEventArgs)	Invoked when an unhandled PreviewStylusUp attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewTextInput(TextCompositionEventArgs)	Invoked when an unhandled PreviewTextInput attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnPreviewTouchDown(TouchEventArgs)	Provides class handling for the PreviewTouchDown routed event that occurs when a touch presses this element. (Inherited from UIElement)
OnPreviewTouchMove(TouchEventArgs)	Provides class handling for the PreviewTouchMove routed event that occurs when a touch moves while inside this element. (Inherited from UIElement)
OnPreviewTouchUp(TouchEventArgs)	Provides class handling for the PreviewTouchUp routed event that occurs when a touch is released inside this element. (Inherited from UIElement)
OnPropertyChanged(DependencyPropertyChangedEventArgs)	Invoked whenever the effective value of any dependency property on this FrameworkElement has been updated. The specific dependency property that changed is reported in the arguments parameter. Overrides OnPropertyChanged(DependencyPropertyChangedEventArgs). (Inherited from FrameworkElement)
OnQueryContinueDrag(QueryContinueDragEventArgs)	Invoked when an unhandled QueryContinueDrag attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnQueryCursor(QueryCursorEventArgs)	Invoked when an unhandled QueryCursor attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnRender(DrawingContext)	Draws the content of a DrawingContext object during the render pass of a Panel element. (Inherited from Panel)
OnRenderSizeChanged(SizeChangedInfo)	Raises the SizeChanged event, using the specified information as part of the eventual event data. (Inherited from FrameworkElement)
OnStyleChanged(Style, Style)	Invoked when the style in use on this element changes, which will invalidate the layout. (Inherited from FrameworkElement)
OnStylusButtonDown(StylusButtonEventArgs)	Invoked when an unhandled StylusButtonDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusButtonUp(StylusButtonEventArgs)	Invoked when an unhandled StylusButtonUp attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusDown(StylusDownEventArgs)	Invoked when an unhandled StylusDown attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusEnter(StylusEventArgs)	Invoked when an unhandled StylusEnter attached event is raised by this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusInAirMove(StylusEventArgs)	Invoked when an unhandled StylusInAirMove attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusInRange(StylusEventArgs)	Invoked when an unhandled StylusInRange attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusLeave(StylusEventArgs)	Invoked when an unhandled StylusLeave attached event is raised by this element. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusMove(StylusEventArgs)	Invoked when an unhandled StylusMove attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusOutOfRange(StylusEventArgs)	Invoked when an unhandled StylusOutOfRange attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusSystemGesture(StylusSystemGestureEventArgs)	Invoked when an unhandled StylusSystemGesture attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnStylusUp(StylusEventArgs)	Invoked when an unhandled StylusUp attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnTextInput(TextCompositionEventArgs)	Invoked when an unhandled TextInput attached event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event. (Inherited from UIElement)
OnToolTipClosing(ToolTipEventArgs)	Invoked whenever an unhandled ToolTipClosing routed event reaches this class in its route. Implement this method to add class handling for this event. (Inherited from FrameworkElement)
OnToolTipOpening(ToolTipEventArgs)	Invoked whenever the ToolTipOpening routed event reaches this class in its route. Implement this method to add class handling for this event. (Inherited from FrameworkElement)
OnTouchDown(TouchEventArgs)	Provides class handling for the TouchDown routed event that occurs when a touch presses inside this element. (Inherited from UIElement)
OnTouchEnter(TouchEventArgs)	Provides class handling for the TouchEnter routed event that occurs when a touch moves from outside to inside the bounds of this element. (Inherited from UIElement)
OnTouchLeave(TouchEventArgs)	Provides class handling for the TouchLeave routed event that occurs when a touch moves from inside to outside the bounds of this UIElement. (Inherited from UIElement)
OnTouchMove(TouchEventArgs)	Provides class handling for the TouchMove routed event that occurs when a touch moves while inside this element. (Inherited from UIElement)
OnTouchUp(TouchEventArgs)	Provides class handling for the TouchUp routed event that occurs when a touch is released inside this element. (Inherited from UIElement)
OnViewportOffsetChanged(Vector, Vector)	Called when the offset of the viewport changes as a user scrolls through content.
OnViewportSizeChanged(Size, Size)	Called when the size of the viewport changes.
OnVisualChildrenChanged(DependencyObject, DependencyObject)	Invoked when the VisualCollection of a visual object is modified. (Inherited from Panel)
OnVisualParentChanged(DependencyObject)	Invoked when the parent of this element in the visual tree is changed. Overrides OnVisualParentChanged(DependencyObject). (Inherited from FrameworkElement)
PageDown()	Scrolls content downward by one page.
PageLeft()	Scrolls content to the left by one page.
PageRight()	Scrolls content to the right by one page.
PageUp()	Scrolls content upward by one page.
ParentLayoutInvalidated(UIElement)	Supports incremental layout implementations in specialized subclasses of FrameworkElement. ParentLayoutInvalidated(UIElement) is invoked when a child element has invalidated a property that is marked in metadata as affecting the parent's measure or arrange passes during layout. (Inherited from FrameworkElement)
PointFromScreen(Point)	Converts a Point in screen coordinates into a Point that represents the current coordinate system of the Visual. (Inherited from Visual)
PointToScreen(Point)	Converts a Point that represents the current coordinate system of the Visual into a Point in screen coordinates. (Inherited from Visual)
PredictFocus(FocusNavigationDirection)	Determines the next element that would receive focus relative to this element for a provided focus movement direction, but does not actually move the focus. (Inherited from FrameworkElement)
RaiseEvent(RoutedEventArgs)	Raises a specific routed event. The RoutedEvent to be raised is identified within the RoutedEventArgs instance that is provided (as the RoutedEvent property of that event data). (Inherited from UIElement)
ReadLocalValue(DependencyProperty)	Returns the local value of a dependency property, if it exists. (Inherited from DependencyObject)
RegisterName(String, Object)	Provides an accessor that simplifies access to the NameScope registration method. (Inherited from FrameworkElement)
ReleaseAllTouchCaptures()	Releases all captured touch devices from this element. (Inherited from UIElement)
ReleaseMouseCapture()	Releases the mouse capture, if this element held the capture. (Inherited from UIElement)
ReleaseStylusCapture()	Releases the stylus device capture, if this element held the capture. (Inherited from UIElement)
ReleaseTouchCapture(TouchDevice)	Attempts to release the specified touch device from this element. (Inherited from UIElement)
RemoveCleanUpVirtualizedItemHandler(DependencyObject, CleanUpVirtualizedItemEventHandler)	Removes an event handler for the CleanUpVirtualizedItem attached event.
RemoveHandler(RoutedEvent, Delegate)	Removes the specified routed event handler from this element. (Inherited from UIElement)
RemoveInternalChildRange(Int32, Int32)	Removes child elements from the InternalChildren collection. (Inherited from VirtualizingPanel)
RemoveLogicalChild(Object)	Removes the provided object from this element's logical tree. FrameworkElement updates the affected logical tree parent pointers to keep in sync with this deletion. (Inherited from FrameworkElement)
RemoveVisualChild(Visual)	Removes the parent-child relationship between two visuals. (Inherited from Visual)
SetBinding(DependencyProperty, BindingBase)	Attaches a binding to this element, based on the provided binding object. (Inherited from FrameworkElement)
SetBinding(DependencyProperty, String)	Attaches a binding to this element, based on the provided source property name as a path qualification to the data source. (Inherited from FrameworkElement)
SetCurrentValue(DependencyProperty, Object)	Sets the value of a dependency property without changing its value source. (Inherited from DependencyObject)
SetHorizontalOffset(Double)	Sets the value of the HorizontalOffset property.
SetResourceReference(DependencyProperty, Object)	Searches for a resource with the specified name and sets up a resource reference to it for the specified property. (Inherited from FrameworkElement)
SetValue(DependencyProperty, Object)	Sets the local value of a dependency property, specified by its dependency property identifier. (Inherited from DependencyObject)
SetValue(DependencyPropertyKey, Object)	Sets the local value of a read-only dependency property, specified by the DependencyPropertyKey identifier of the dependency property. (Inherited from DependencyObject)
SetVerticalOffset(Double)	Sets the value of the VerticalOffset property.
ShouldItemsChangeAffectLayout(Boolean, ItemsChangedEventArgs)	Returns a value that indicates whether a changed item in an ItemsControl affects the layout for this panel. (Inherited from VirtualizingPanel)
ShouldItemsChangeAffectLayoutCore(Boolean, ItemsChangedEventArgs)	Returns a value that indicates whether a changed item in an ItemsControl affects the layout for this panel.
ShouldSerializeChildren()	Determines whether the Children collection of a panel should be serialized. (Inherited from Panel)
ShouldSerializeCommandBindings()	Returns whether serialization processes should serialize the contents of the CommandBindings property on instances of this class. (Inherited from UIElement)
ShouldSerializeInputBindings()	Returns whether serialization processes should serialize the contents of the InputBindings property on instances of this class. (Inherited from UIElement)
ShouldSerializeProperty(DependencyProperty)	Returns a value that indicates whether serialization processes should serialize the value for the provided dependency property. (Inherited from DependencyObject)
ShouldSerializeResources()	Returns whether serialization processes should serialize the contents of the Resources property. (Inherited from FrameworkElement)
ShouldSerializeStyle()	Returns whether serialization processes should serialize the contents of the Style property. (Inherited from FrameworkElement)
ShouldSerializeTriggers()	Returns whether serialization processes should serialize the contents of the Triggers property. (Inherited from FrameworkElement)
ToString()	Returns a string that represents the current object. (Inherited from Object)
TransformToAncestor(Visual)	Returns a transform that can be used to transform coordinates from the Visual to the specified Visual ancestor of the visual object. (Inherited from Visual)
TransformToAncestor(Visual3D)	Returns a transform that can be used to transform coordinates from the Visual to the specified Visual3D ancestor of the visual object. (Inherited from Visual)
TransformToDescendant(Visual)	Returns a transform that can be used to transform coordinates from the Visual to the specified visual object descendant. (Inherited from Visual)
TransformToVisual(Visual)	Returns a transform that can be used to transform coordinates from the Visual to the specified visual object. (Inherited from Visual)
TranslatePoint(Point, UIElement)	Translates a point relative to this element to coordinates that are relative to the specified element. (Inherited from UIElement)
TryFindResource(Object)	Searches for a resource with the specified key, and returns that resource if found. (Inherited from FrameworkElement)
UnregisterName(String)	Simplifies access to the NameScope de-registration method. (Inherited from FrameworkElement)
UpdateDefaultStyle()	Reapplies the default style to the current FrameworkElement. (Inherited from FrameworkElement)
UpdateLayout()	Ensures that all visual child elements of this element are properly updated for layout. (Inherited from UIElement)
VerifyAccess()	Enforces that the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject)

Events

ContextMenuClosing	Occurs just before any context menu on the element is closed. (Inherited from FrameworkElement)
ContextMenuOpening	Occurs when any context menu on the element is opened. (Inherited from FrameworkElement)
DataContextChanged	Occurs when the data context for this element changes. (Inherited from FrameworkElement)
DragEnter	Occurs when the input system reports an underlying drag event with this element as the drag target. (Inherited from UIElement)
DragLeave	Occurs when the input system reports an underlying drag event with this element as the drag origin. (Inherited from UIElement)
DragOver	Occurs when the input system reports an underlying drag event with this element as the potential drop target. (Inherited from UIElement)
Drop	Occurs when the input system reports an underlying drop event with this element as the drop target. (Inherited from UIElement)
FocusableChanged	Occurs when the value of the Focusable property changes. (Inherited from UIElement)
GiveFeedback	Occurs when the input system reports an underlying drag-and-drop event that involves this element. (Inherited from UIElement)
GotFocus	Occurs when this element gets logical focus. (Inherited from UIElement)
GotKeyboardFocus	Occurs when the keyboard is focused on this element. (Inherited from UIElement)
GotMouseCapture	Occurs when this element captures the mouse. (Inherited from UIElement)
GotStylusCapture	Occurs when this element captures the stylus. (Inherited from UIElement)
GotTouchCapture	Occurs when a touch is captured to this element. (Inherited from UIElement)
Initialized	Occurs when this FrameworkElement is initialized. This event coincides with cases where the value of the IsInitialized property changes from false (or undefined) to true. (Inherited from FrameworkElement)
IsEnabledChanged	Occurs when the value of the IsEnabled property on this element changes. (Inherited from UIElement)
IsHitTestVisibleChanged	Occurs when the value of the IsHitTestVisible dependency property changes on this element. (Inherited from UIElement)
IsKeyboardFocusedChanged	Occurs when the value of the IsKeyboardFocused property changes on this element. (Inherited from UIElement)
IsKeyboardFocusWithinChanged	Occurs when the value of the IsKeyboardFocusWithin property changes on this element. (Inherited from UIElement)
IsMouseCapturedChanged	Occurs when the value of the IsMouseCaptured property changes on this element. (Inherited from UIElement)
IsMouseCaptureWithinChanged	Occurs when the value of the IsMouseCaptureWithinProperty changes on this element. (Inherited from UIElement)
IsMouseDirectlyOverChanged	Occurs when the value of the IsMouseDirectlyOver property changes on this element. (Inherited from UIElement)
IsStylusCapturedChanged	Occurs when the value of the IsStylusCaptured property changes on this element. (Inherited from UIElement)
IsStylusCaptureWithinChanged	Occurs when the value of the IsStylusCaptureWithin property changes on this element. (Inherited from UIElement)
IsStylusDirectlyOverChanged	Occurs when the value of the IsStylusDirectlyOver property changes on this element. (Inherited from UIElement)
IsVisibleChanged	Occurs when the value of the IsVisible property changes on this element. (Inherited from UIElement)
KeyDown	Occurs when a key is pressed while focus is on this element. (Inherited from UIElement)
KeyUp	Occurs when a key is released while focus is on this element. (Inherited from UIElement)
LayoutUpdated	Occurs when the layout of the various visual elements associated with the current Dispatcher changes. (Inherited from UIElement)
Loaded	Occurs when the element is laid out, rendered, and ready for interaction. (Inherited from FrameworkElement)
LostFocus	Occurs when this element loses logical focus. (Inherited from UIElement)
LostKeyboardFocus	Occurs when the keyboard is no longer focused on this element. (Inherited from UIElement)
LostMouseCapture	Occurs when this element loses mouse capture. (Inherited from UIElement)
LostStylusCapture	Occurs when this element loses stylus capture. (Inherited from UIElement)
LostTouchCapture	Occurs when this element loses a touch capture. (Inherited from UIElement)
ManipulationBoundaryFeedback	Occurs when the manipulation encounters a boundary. (Inherited from UIElement)
ManipulationCompleted	Occurs when a manipulation and inertia on the UIElement object is complete. (Inherited from UIElement)
ManipulationDelta	Occurs when the input device changes position during a manipulation. (Inherited from UIElement)
ManipulationInertiaStarting	Occurs when the input device loses contact with the UIElement object during a manipulation and inertia begins. (Inherited from UIElement)
ManipulationStarted	Occurs when an input device begins a manipulation on the UIElement object. (Inherited from UIElement)
ManipulationStarting	Occurs when the manipulation processor is first created. (Inherited from UIElement)
MouseDown	Occurs when any mouse button is pressed while the pointer is over this element. (Inherited from UIElement)
MouseEnter	Occurs when the mouse pointer enters the bounds of this element. (Inherited from UIElement)
MouseLeave	Occurs when the mouse pointer leaves the bounds of this element. (Inherited from UIElement)
MouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over this element. (Inherited from UIElement)
MouseLeftButtonUp	Occurs when the left mouse button is released while the mouse pointer is over this element. (Inherited from UIElement)
MouseMove	Occurs when the mouse pointer moves while over this element. (Inherited from UIElement)
MouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over this element. (Inherited from UIElement)
MouseRightButtonUp	Occurs when the right mouse button is released while the mouse pointer is over this element. (Inherited from UIElement)
MouseUp	Occurs when any mouse button is released over this element. (Inherited from UIElement)
MouseWheel	Occurs when the user rotates the mouse wheel while the mouse pointer is over this element. (Inherited from UIElement)
PreviewDragEnter	Occurs when the input system reports an underlying drag event with this element as the drag target. (Inherited from UIElement)
PreviewDragLeave	Occurs when the input system reports an underlying drag event with this element as the drag origin. (Inherited from UIElement)
PreviewDragOver	Occurs when the input system reports an underlying drag event with this element as the potential drop target. (Inherited from UIElement)
PreviewDrop	Occurs when the input system reports an underlying drop event with this element as the drop target. (Inherited from UIElement)
PreviewGiveFeedback	Occurs when a drag-and-drop operation is started. (Inherited from UIElement)
PreviewGotKeyboardFocus	Occurs when the keyboard is focused on this element. (Inherited from UIElement)
PreviewKeyDown	Occurs when a key is pressed while focus is on this element. (Inherited from UIElement)
PreviewKeyUp	Occurs when a key is released while focus is on this element. (Inherited from UIElement)
PreviewLostKeyboardFocus	Occurs when the keyboard is no longer focused on this element. (Inherited from UIElement)
PreviewMouseDown	Occurs when any mouse button is pressed while the pointer is over this element. (Inherited from UIElement)
PreviewMouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over this element. (Inherited from UIElement)
PreviewMouseLeftButtonUp	Occurs when the left mouse button is released while the mouse pointer is over this element. (Inherited from UIElement)
PreviewMouseMove	Occurs when the mouse pointer moves while the mouse pointer is over this element. (Inherited from UIElement)
PreviewMouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over this element. (Inherited from UIElement)
PreviewMouseRightButtonUp	Occurs when the right mouse button is released while the mouse pointer is over this element. (Inherited from UIElement)
PreviewMouseUp	Occurs when any mouse button is released while the mouse pointer is over this element. (Inherited from UIElement)
PreviewMouseWheel	Occurs when the user rotates the mouse wheel while the mouse pointer is over this element. (Inherited from UIElement)
PreviewQueryContinueDrag	Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation. (Inherited from UIElement)
PreviewStylusButtonDown	Occurs when the stylus button is pressed while the pointer is over this element. (Inherited from UIElement)
PreviewStylusButtonUp	Occurs when the stylus button is released while the pointer is over this element. (Inherited from UIElement)
PreviewStylusDown	Occurs when the stylus touches the digitizer while it is over this element. (Inherited from UIElement)
PreviewStylusInAirMove	Occurs when the stylus moves over an element without actually touching the digitizer. (Inherited from UIElement)
PreviewStylusInRange	Occurs when the stylus is close enough to the digitizer to be detected, while over this element. (Inherited from UIElement)
PreviewStylusMove	Occurs when the stylus moves while over the element. The stylus must move while being detected by the digitizer to raise this event, otherwise, PreviewStylusInAirMove is raised instead. (Inherited from UIElement)
PreviewStylusOutOfRange	Occurs when the stylus is too far from the digitizer to be detected. (Inherited from UIElement)
PreviewStylusSystemGesture	Occurs when a user performs one of several stylus gestures. (Inherited from UIElement)
PreviewStylusUp	Occurs when the user raises the stylus off the digitizer while the stylus is over this element. (Inherited from UIElement)
PreviewTextInput	Occurs when this element gets text in a device-independent manner. (Inherited from UIElement)
PreviewTouchDown	Occurs when a finger touches the screen while the finger is over this element. (Inherited from UIElement)
PreviewTouchMove	Occurs when a finger moves on the screen while the finger is over this element. (Inherited from UIElement)
PreviewTouchUp	Occurs when a finger is raised off of the screen while the finger is over this element. (Inherited from UIElement)
QueryContinueDrag	Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation. (Inherited from UIElement)
QueryCursor	Occurs when the cursor is requested to display. This event is raised on an element each time that the mouse pointer moves to a new location, which means the cursor object might need to be changed based on its new position. (Inherited from UIElement)
RequestBringIntoView	Occurs when BringIntoView(Rect) is called on this element. (Inherited from FrameworkElement)
SizeChanged	Occurs when either the ActualHeight or the ActualWidth properties change value on this element. (Inherited from FrameworkElement)
SourceUpdated	Occurs when the source value changes for any existing property binding on this element. (Inherited from FrameworkElement)
StylusButtonDown	Occurs when the stylus button is pressed while the pointer is over this element. (Inherited from UIElement)
StylusButtonUp	Occurs when the stylus button is released while the pointer is over this element. (Inherited from UIElement)
StylusDown	Occurs when the stylus touches the digitizer while the stylus is over this element. (Inherited from UIElement)
StylusEnter	Occurs when the stylus enters the bounds of this element. (Inherited from UIElement)
StylusInAirMove	Occurs when the stylus moves over an element without actually touching the digitizer. (Inherited from UIElement)
StylusInRange	Occurs when the stylus is close enough to the digitizer to be detected, while over this element. (Inherited from UIElement)
StylusLeave	Occurs when the stylus leaves the bounds of the element. (Inherited from UIElement)
StylusMove	Occurs when the stylus moves over this element. The stylus must move while on the digitizer to raise this event. Otherwise, StylusInAirMove is raised instead. (Inherited from UIElement)
StylusOutOfRange	Occurs when the stylus is too far from the digitizer to be detected, while over this element. (Inherited from UIElement)
StylusSystemGesture	Occurs when a user performs one of several stylus gestures. (Inherited from UIElement)
StylusUp	Occurs when the user raises the stylus off the digitizer while it is over this element. (Inherited from UIElement)
TargetUpdated	Occurs when the target value changes for any property binding on this element. (Inherited from FrameworkElement)
TextInput	Occurs when this element gets text in a device-independent manner. (Inherited from UIElement)
ToolTipClosing	Occurs just before any tooltip on the element is closed. (Inherited from FrameworkElement)
ToolTipOpening	Occurs when any tooltip on the element is opened. (Inherited from FrameworkElement)
TouchDown	Occurs when a finger touches the screen while the finger is over this element. (Inherited from UIElement)
TouchEnter	Occurs when a touch moves from outside to inside the bounds of this element. (Inherited from UIElement)
TouchLeave	Occurs when a touch moves from inside to outside the bounds of this element. (Inherited from UIElement)
TouchMove	Occurs when a finger moves on the screen while the finger is over this element. (Inherited from UIElement)
TouchUp	Occurs when a finger is raised off of the screen while the finger is over this element. (Inherited from UIElement)
Unloaded	Occurs when the element is removed from within an element tree of loaded elements. (Inherited from FrameworkElement)

Attached Events

CleanUpVirtualizedItem

Occurs when an item is being re-virtualized by the ItemsControl that is associated with this instance of VirtualizingStackPanel.

Explicit Interface Implementations

IAddChild.AddChild(Object)	This type or member supports the Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code. (Inherited from Panel)
IAddChild.AddText(String)	This type or member supports the Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code. (Inherited from Panel)
IQueryAmbient.IsAmbientPropertyAvailable(String)	For a description of this member, see the IsAmbientPropertyAvailable(String) method. (Inherited from FrameworkElement)

See also

• StackPanel
• ListBox