Partager via

  • Article

UIElementCollection Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Represents an ordered collection of UIElement objects.

Inheritance Hierarchy

System.Object
  System.Windows.DependencyObject
    System.Windows.PresentationFrameworkCollection<UIElement>
      System.Windows.Controls.UIElementCollection

Namespace:  System.Windows.Controls
Assembly:  System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public NotInheritable Class UIElementCollection _
    Inherits PresentationFrameworkCollection(Of UIElement)

public sealed class UIElementCollection : PresentationFrameworkCollection<UIElement>

<panelobject>
  oneOrMoreChildren
</panelobject>

XAML Values

  • oneOrMoreChildren
    One or more objects elements for classes that derive from UIElement.

  • panelobject
    Object element (opening and closing tags) for a class that derives from Panel. Typically this is one of the panels defined by Silverlight, such as Canvas, Grid, or StackPanel.

The UIElementCollection type exposes the following members.

Properties

  Name Description
Public propertySupported by Silverlight for Windows Phone Count Gets the number of elements contained in the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public propertySupported by Silverlight for Windows Phone Dispatcher Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Public propertySupported by Silverlight for Windows Phone IsFixedSize Gets a value indicating whether the PresentationFrameworkCollection<T> has a fixed size. (Inherited from PresentationFrameworkCollection<T>.)
Public propertySupported by Silverlight for Windows Phone IsReadOnly Gets a value indicating whether the PresentationFrameworkCollection<T> is read-only. (Inherited from PresentationFrameworkCollection<T>.)
Public propertySupported by Silverlight for Windows Phone IsSynchronized Gets a value indicating whether access to the PresentationFrameworkCollection<T> is synchronized (thread safe). (Inherited from PresentationFrameworkCollection<T>.)
Public propertySupported by Silverlight for Windows Phone Item Gets or sets the element at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Public propertySupported by Silverlight for Windows Phone SyncRoot Gets an object that can be used to synchronize access to the PresentationFrameworkCollection<T> . (Inherited from PresentationFrameworkCollection<T>.)

Top

Methods

  Name Description
Public methodSupported by Silverlight for Windows Phone Add Adds an item to the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone CheckAccess Determines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone Clear Removes all items from the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone ClearValue Clears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone Contains Determines whether the PresentationFrameworkCollection<T> contains a specific value. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone CopyTo(array<T[], Int32) Copies the elements of the PresentationFrameworkCollection<T> to an Array, starting at a particular Array index. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone CopyTo(Array, Int32) Copies the elements of the PresentationFrameworkCollection<T> to an Array, starting at a particular Array index. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows Phone Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetAnimationBaseValue Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone GetEnumerator Returns an enumerator that iterates through a collection. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetType Gets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetValue Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone IndexOf Determines the index of a specific item in the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone Insert Inserts an item to the PresentationFrameworkCollection<T> at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Protected methodSupported by Silverlight for Windows Phone MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone ReadLocalValue Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone Remove Removes the first occurrence of a specific object from the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone RemoveAt Removes the item at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Public methodSupported by Silverlight for Windows Phone SetValue Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone ToString Returns a string that represents the current object. (Inherited from Object.)

Top

Explicit Interface Implementations

  Name Description
Explicit interface implemetationPrivate methodSupported by Silverlight for Windows Phone IEnumerable.GetEnumerator Returns an enumerator that iterates through a collection. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodSupported by Silverlight for Windows Phone IList.Add Adds an item to the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodSupported by Silverlight for Windows Phone IList.Contains Determines whether the PresentationFrameworkCollection<T> contains a specific value. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodSupported by Silverlight for Windows Phone IList.IndexOf Determines the index of a specific item in the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodSupported by Silverlight for Windows Phone IList.Insert Inserts an item to the PresentationFrameworkCollection<T> at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate propertySupported by Silverlight for Windows Phone IList.Item Gets or sets the element at the specified index. (Inherited from PresentationFrameworkCollection<T>.)
Explicit interface implemetationPrivate methodSupported by Silverlight for Windows Phone IList.Remove Removes the first occurrence of a specific object from the PresentationFrameworkCollection<T>. (Inherited from PresentationFrameworkCollection<T>.)

Top

Remarks

UIElementCollection provides the collection support for Children.

The XAML syntax shown is the XAML implicit collection syntax for populating items in the UIElementCollection held by the Panel.Children property. Panel.Children is not literally shown in the syntax because Panel.Children is the content property for any element of a practical "Panel" class that derives from Panel. Therefore panelObject.Children can be omitted as a property element.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.