ViewItem Class

Статья
02/23/2011

An abstract class that enables interaction with view objects.

Inheritance Hierarchy

System.Object
Microsoft.Windows.Design.Interaction.ViewItem

Namespace: Microsoft.Windows.Design.Interaction
Assembly: Microsoft.Windows.Design.Interaction (in Microsoft.Windows.Design.Interaction.dll)

Syntax

'Declaration
Public MustInherit Class ViewItem

public abstract class ViewItem

public ref class ViewItem abstract

[<AbstractClass>]
type ViewItem =  class end

public abstract class ViewItem

The ViewItem type exposes the following members.

Constructors

	Name	Description
	ViewItem	Initializes a new instance of the ViewItem class.

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Properties

	Name	Description
	FlowDirection	Gets the FlowDirection property of the view.
	IsOffscreen	Gets a value that indicates whether the element is off the screen.
	IsVisible	Gets a value that indicates whether an element is visible.
	ItemType	Gets the type of the underlying dependency object that represents this view.
	LayoutTransform	Gets the layout transform of the current ViewItem.
	LogicalChildren	Gets a collection of the immediate logical children of the current ViewItem.
	LogicalParent	Gets the logical parent of the current ViewItem.
	Offset	Gets the offset of the view.
	PlatformObject	Gets the underlying dependency object that represents this view.
	RenderSize	Gets the render size of the view.
	RenderSizeBounds	Gets the layout rectangle for the view.
	SelectionFrameBounds	Gets the bounds of the selection frame.
	Transform	Gets the transform value for the current ViewItem.
	Visibility	Gets the Visibility property of the view.
	VisualChildren	Gets a collection of the immediate visual children of this ViewItem.
	VisualParent	Gets the visual parent of the current ViewItem.

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Methods

	Name	Description
	Equals	Determines whether the specified ViewItem is equal to the current ViewItem. (Overrides Object.Equals(Object).)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a ViewItem. (Overrides Object.GetHashCode().)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	HitTest	Initiates a hit test on the ViewItem, with caller-defined HitTestFilterCallback and HitTestResultCallback methods.
	IsDescendantOf(Visual)	Gets a value that indicates whether the visual object is a descendant of the specified visual object.
	IsDescendantOf(ViewItem)	Determines whether the visual object is a descendant of the ancestor visual object.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	PointToScreen	Converts a Point that represents the current coordinate system of the Visual into a Point in screen coordinates.
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	TransformFromVisual	Returns a transform that can be used to transform coordinates from the specified visual object to the view.
	TransformToView	Returns a transform that can be used to transform coordinates from the view to the specified view object.
	TransformToVisual	Returns a transform that can be used to transform coordinates from the view to the specified visual object.
	UpdateLayout	Calls the UpdateLayout method on the underlying platform object.

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Operators

	Name	Description
	Equality	Determines whether the specified ViewItem instances are considered equal.
	Inequality	Determines whether the specified ViewItem instances are considered not equal.

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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.

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