Class UIElement

UIElement is a base class for most of the objects that have visual appearance and can process basic input in a user interface.

Inheritance

System.Object

DependencyObject

UIElement

TextElement

FrameworkElement

Inherited Members

DependencyObject.GetValue(DependencyProperty)

DependencyObject.SetCurrentValue(DependencyProperty, Object)

DependencyObject.ReadLocalValue(DependencyProperty)

DependencyObject.SetValue(DependencyProperty, Object)

DependencyObject.SetValue(DependencyPropertyKey, Object)

DependencyObject.CoerceValue(DependencyProperty)

DependencyObject.Dispatcher

DependencyObject.INTERNAL_OnAttachedToVisualTree()

DependencyObject.INTERNAL_OnDetachedFromVisualTree()

DependencyObject.ClearValue(DependencyProperty)

DependencyObject.ClearValue(DependencyPropertyKey)

DependencyObject.CheckAccess()

DependencyObject.GetAnimationBaseValue(DependencyProperty)

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: System.Windows

Assembly: OpenSilver.dll

Syntax

public abstract class UIElement : DependencyObject, IUIElement, IDependencyObject

Constructors

UIElement()

Declaration

public UIElement()

Fields

AllowDropProperty

Identifies the AllowDrop dependency property.

Declaration

public static readonly DependencyProperty AllowDropProperty

Field Value

Type	Description
DependencyProperty

AllowScrollOnTouchMoveProperty

Identifies the AllowScrollOnTouchMove dependency property.

Declaration

public static readonly DependencyProperty AllowScrollOnTouchMoveProperty

Field Value

Type	Description
DependencyProperty

CacheModeProperty

Identifies the CacheMode dependency property.

Declaration

[NotImplemented]
public static readonly DependencyProperty CacheModeProperty

Field Value

Type	Description
DependencyProperty	The identifier for the CacheMode dependency property.

ClipProperty

Identifies the Clip dependency property.

Declaration

public static readonly DependencyProperty ClipProperty

Field Value

Type	Description
DependencyProperty

ClipToBoundsProperty

Identifies the ClipToBounds dependency property.

Declaration

public static readonly DependencyProperty ClipToBoundsProperty

Field Value

Type	Description
DependencyProperty

EffectProperty

Identifies the Effect dependency property.

Declaration

public static readonly DependencyProperty EffectProperty

Field Value

Type	Description
DependencyProperty

GotFocusEvent

Declaration

public static readonly RoutedEvent GotFocusEvent

Field Value

Type	Description
RoutedEvent

IsEnabledProperty

Identifies the IsEnabled dependency property.

Declaration

public static readonly DependencyProperty IsEnabledProperty

Field Value

Type	Description
DependencyProperty

IsHitTestVisibleProperty

Identifies the IsHitTestVisible dependency property.

Declaration

public static readonly DependencyProperty IsHitTestVisibleProperty

Field Value

Type	Description
DependencyProperty

IsVisibleProperty

Identifies the IsVisible dependency property.

Declaration

public static readonly DependencyProperty IsVisibleProperty

Field Value

Type	Description
DependencyProperty

KeyDownEvent

Declaration

public static readonly RoutedEvent KeyDownEvent

Field Value

Type	Description
RoutedEvent

KeyUpEvent

Declaration

public static readonly RoutedEvent KeyUpEvent

Field Value

Type	Description
RoutedEvent

LostFocusEvent

Declaration

public static readonly RoutedEvent LostFocusEvent

Field Value

Type	Description
RoutedEvent

MouseEnterEvent

Declaration

public static readonly RoutedEvent MouseEnterEvent

Field Value

Type	Description
RoutedEvent

MouseLeaveEvent

Declaration

public static readonly RoutedEvent MouseLeaveEvent

Field Value

Type	Description
RoutedEvent

MouseLeftButtonDownEvent

Declaration

public static readonly RoutedEvent MouseLeftButtonDownEvent

Field Value

Type	Description
RoutedEvent

MouseLeftButtonUpEvent

Declaration

public static readonly RoutedEvent MouseLeftButtonUpEvent

Field Value

Type	Description
RoutedEvent

MouseMoveEvent

Declaration

public static readonly RoutedEvent MouseMoveEvent

Field Value

Type	Description
RoutedEvent

MouseRightButtonDownEvent

Identifies the MouseRightButtonDown routed event.

Declaration

public static readonly RoutedEvent MouseRightButtonDownEvent

Field Value

Type	Description
RoutedEvent

MouseRightButtonUpEvent

Declaration

public static readonly RoutedEvent MouseRightButtonUpEvent

Field Value

Type	Description
RoutedEvent

MouseWheelEvent

Identifies the MouseWheel routed event.

Declaration

public static readonly RoutedEvent MouseWheelEvent

Field Value

Type	Description
RoutedEvent

OpacityMaskProperty

Identifies the OpacityMask dependency property.

Declaration

public static readonly DependencyProperty OpacityMaskProperty

Field Value

Type	Description
DependencyProperty

OpacityProperty

Identifies the Opacity dependency property.

Declaration

public static readonly DependencyProperty OpacityProperty

Field Value

Type	Description
DependencyProperty

ProjectionProperty

Declaration

[NotImplemented]
public static readonly DependencyProperty ProjectionProperty

Field Value

Type	Description
DependencyProperty

RenderTransformOriginProperty

Identifies the RenderTransformOrigin dependency property.

Declaration

public static readonly DependencyProperty RenderTransformOriginProperty

Field Value

Type	Description
DependencyProperty

RenderTransformProperty

Identifies the RenderTransform dependency property.

Declaration

public static readonly DependencyProperty RenderTransformProperty

Field Value

Type	Description
DependencyProperty

TappedEvent

Declaration

public static readonly RoutedEvent TappedEvent

Field Value

Type	Description
RoutedEvent

TextInputEvent

Identifies the TextInput routed event.

Declaration

public static readonly RoutedEvent TextInputEvent

Field Value

Type	Description
RoutedEvent

TextInputStartEvent

Identifies the TextInputStart routed event.

Declaration

public static readonly RoutedEvent TextInputStartEvent

Field Value

Type	Description
RoutedEvent

TextInputUpdateEvent

Identifies the TextInputUpdate routed event.

Declaration

[NotImplemented]
public static readonly RoutedEvent TextInputUpdateEvent

Field Value

Type	Description
RoutedEvent

UseLayoutRoundingProperty

Identifies the UseLayoutRounding dependency property.

Declaration

public static readonly DependencyProperty UseLayoutRoundingProperty

Field Value

Type	Description
DependencyProperty

VisibilityProperty

Identifies the Visibility dependency property.

Declaration

public static readonly DependencyProperty VisibilityProperty

Field Value

Type	Description
DependencyProperty

XamlSourcePath

Declaration

public string XamlSourcePath

Field Value

Type	Description
System.String

Properties

AllowDrop

Gets or sets a value that determines whether this UIElement can be a drop target for purposes of drag-and-drop operations.

Declaration

public bool AllowDrop { get; set; }

Property Value

Type	Description
System.Boolean

AllowScrollOnTouchMove

Gets or sets whether pressing (touchscreen devices) on this UIElement then moving should allow scrolling or not. The default value is True.

Declaration

public bool AllowScrollOnTouchMove { get; set; }

Property Value

Type	Description
System.Boolean

CacheMode

Gets or sets a value that indicates that rendered content should be cached when possible.

Declaration

[NotImplemented]
public CacheMode CacheMode { get; set; }

Property Value

Type	Description
CacheMode	A value that indicates that rendered content should be cached when possible. If you specify a value of CacheMode, rendering operations from RenderTransform and Opacity execute on the graphics processing unit (GPU), if available. The default is null, which does not enable a cached composition mode.

Clip

Gets or sets the Geometry used to define the outline of the contents of a UIElement.

Declaration

public Geometry Clip { get; set; }

Property Value

Type	Description
Geometry	The geometry to be used for clipping area sizing. The default value is null.

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.

Declaration

public bool ClipToBounds { get; set; }

Property Value

Type	Description
System.Boolean

DesiredSize

Gets the size that this UIElement computed during the measure pass of the layout process.

Declaration

public Size DesiredSize { get; }

Property Value

Type	Description
Size	The size that this UIElement computed during the measure pass of the layout process.

Effect

Gets or sets the pixel shader effect to use for rendering this UIElement.

Declaration

public Effect Effect { get; set; }

Property Value

Type	Description
Effect	The pixel shader effect to use for rendering this UIElement. The default is null (no effects).

IsEnabled

Gets or sets a value indicating whether the user can interact with the control.

Declaration

public bool IsEnabled { get; set; }

Property Value

Type	Description
System.Boolean	true if the user can interact with the control; otherwise, false.

IsHitTestVisible

Gets or sets whether the contained area of this UIElement can return true values for hit testing.

Declaration

public bool IsHitTestVisible { get; set; }

Property Value

Type	Description
System.Boolean

IsMouseCaptured

Gets a value indicating whether the pointer is captured to this element.

Declaration

public bool IsMouseCaptured { get; }

Property Value

Type	Description
System.Boolean

IsVisible

Gets a value indicating whether this element is visible in the user interface (UI). This is a dependency property.

Declaration

public bool IsVisible { get; }

Property Value

Type	Description
System.Boolean	true if the element is visible; otherwise, false.

Opacity

Gets or sets the degree of the object's opacity.

Declaration

public double Opacity { get; set; }

Property Value

Type	Description
System.Double	A value between 0 and 1.0 that declares the opacity factor, with 1.0 meaning full opacity and 0 meaning transparent. The default value is 1.0.

OpacityMask

Gets or sets the brush used to alter the opacity of regions of this object.

Declaration

public Brush OpacityMask { get; set; }

Property Value

Type	Description
Brush	A brush that describes the opacity applied to this object. The default is null.

Projection

Declaration

[NotImplemented]
public Projection Projection { get; set; }

Property Value

Type	Description
Projection

RenderSize

Gets the final render size of a UIElement.

Declaration

public Size RenderSize { get; }

Property Value

Type	Description
Size	The rendered size for this object. There is no default value.

RenderTransform

Gets or sets transform information that affects the rendering position of a UIElement.

Declaration

public Transform RenderTransform { get; set; }

Property Value

Type	Description
Transform	Describes the specifics of the desired render transform. The default value is null.

RenderTransformOrigin

Gets or sets the origin point of any possible render transform declared by RenderTransform, relative to the bounds of the UIElement.

Declaration

public Point RenderTransformOrigin { get; set; }

Property Value

Type	Description
Point	The origin point of the render transform. The default value is a point with value 0,0.

UseLayoutRounding

Gets or sets a value that determines whether rendering for the object and its visual subtree should use rounding behavior that aligns rendering to whole pixels.

Declaration

public bool UseLayoutRounding { get; set; }

Property Value

Type	Description
System.Boolean

Visibility

Gets or sets the visibility of a UIElement. A UIElement that is not visible is not rendered and does not communicate its desired size to layout.

Declaration

public Visibility Visibility { get; set; }

Property Value

Type	Description
Visibility

VisualChildrenCount

Gets the number of child elements for the UIElement.

Declaration

protected virtual int VisualChildrenCount { get; }

Property Value

Type	Description
System.Int32	The number of child elements.

VisualParent

Gets the visual tree parent of the visual object.

Declaration

protected DependencyObject VisualParent { get; }

Property Value

Type	Description
DependencyObject	The UIElement parent.

Methods

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.

Declaration

public void AddHandler(RoutedEvent routedEvent, Delegate handler, bool handledEventsToo)

Parameters

Type	Name	Description
RoutedEvent	routedEvent	An identifier for the routed event to be handled.
System.Delegate	handler	A reference to the handler implementation.
System.Boolean	handledEventsToo	true to register the handler such that it is invoked even when the routed event is marked handled in its event data; false to register the handler with the default condition that it will not be invoked if the routed event is already marked handled. The default is false. Do not routinely ask to rehandle a routed event. For more information, see Remarks.

Exceptions

Type	Condition
System.ArgumentNullException	routedEvent or handler is null.
System.ArgumentException	routedEvent does not represent a supported routed event.-or-handler does not implement a supported delegate.
System.NotImplementedException	Attempted to add handler for an event not supported by the current platform variation.

AddVisualChild(UIElement)

Defines the parent-child relationship between two visuals.

Declaration

protected void AddVisualChild(UIElement child)

Parameters

Type	Name	Description
UIElement	child	The child visual object to add to parent visual.

Arrange(Rect)

Positions child objects and determines a size for a UIElement. Parent objects that implement custom layout for their child elements should call this method from their layout override implementations to form a recursive layout update.

Declaration

public void Arrange(Rect finalRect)

Parameters

Type	Name	Description
Rect	finalRect	The final size that the parent computes for the child in layout, provided as a Rect value.

Remarks

There is no reason to call Measure(Size) or Arrange(Rect) outside of the context of overriding methods that perform custom layout actions. Silverlight layout works autonomously, based on detecting changes to the object tree and layout-relevant properties at run time. The finalRect you pass to Measure(Size) cannot have a System.Double.NaN value for any Rect value. Also, finalRect cannot have any infinite values for any Rect value. Typically, calls to Arrange(Rect) will incorporate a finalRect that uses the height and width values from DesiredSize for each element . Exceptions to this typical behavior might be necessary if an element holds a DesiredSize that the layout parent cannot accommodate, or if the sum total of all child element DesiredSize values cannot be accommodated or arranged. In such cases the child element content might be clipped, resized, or placed in a scroll region, which all depends on the specific functionality that is enabled in the layout parent container.

Exceptions

Type	Condition
System.InvalidOperationException	finalRect contained a System.Double.NaN or infinite value. See Remarks.

CaptureMouse()

Sets pointer capture to a UIElement.

Declaration

public bool CaptureMouse()

Returns

Type	Description
System.Boolean	True if the object has pointer capture; otherwise, false.

CreateDomElement(Object, out Object)

When overriden, creates the dom elements designed to represent an instance of an UIElement and defines the place where its child(ren) will be added.

Declaration

public abstract object CreateDomElement(object parentRef, out object domElementWhereToPlaceChildren)

Parameters

Type	Name	Description
System.Object	parentRef	The parent of the UIElement
System.Object	domElementWhereToPlaceChildren	The dom element where the UIElement's children will be added.

Returns

Type	Description
System.Object	The "root" dom element of the UIElement.

GetVisualChild(Int32)

Returns a child at the specified index from a collection of child elements.

Declaration

protected virtual UIElement GetVisualChild(int index)

Parameters

Type	Name	Description
System.Int32	index	The zero-based index of the requested child element in the collection.

Returns

Type	Description
UIElement	The requested child element. This should not return null; if the provided index is out of range, an exception is thrown.

INTERNAL_AttachToDomEvents()

Declaration

public virtual void INTERNAL_AttachToDomEvents()

INTERNAL_DetachFromDomEvents()

Declaration

public virtual void INTERNAL_DetachFromDomEvents()

InvalidateArrange()

Invalidates the arrange state (layout) for a UIElement. After the invalidation, the UIElement will have its layout updated, which will occur asynchronously.

Declaration

public void InvalidateArrange()

InvalidateMeasure()

Invalidates the measurement state (layout) for a UIElement.

Declaration

public void InvalidateMeasure()

ManageIsEnabled(Boolean)

Declaration

protected virtual void ManageIsEnabled(bool isEnabled)

Parameters

Type	Name	Description
System.Boolean	isEnabled

Measure(Size)

Updates the DesiredSize of a UIElement. Typically, objects that implement custom layout for their layout children call this method from their own MeasureOverride(Size) implementations to form a recursive layout update.

Declaration

public void Measure(Size availableSize)

Parameters

Type	Name	Description
Size	availableSize	The available space that a parent can allocate a child object. A child object can request a larger space than what is available; the provided size might be accommodated if scrolling or other resize behavior is possible in that particular container.

Remarks

There is no reason to call Measure(Size) or Arrange(Rect) outside of the context of overriding methods that perform custom layout actions. Silverlight layout works autonomously, based on detecting changes to the object tree and layout-relevant properties at run time. The availableSize you pass to Measure(Size) cannot have a System.Double.NaN value for either the Height or Width of the Size. availableSize values can be any number from zero to infinite. Elements participating in layout should return the minimum Size they require for a given availableSize.

Exceptions

Type	Condition
System.InvalidOperationException	availableSize contained a System.Double.NaN value. See Remarks.

OnCreateAutomationPeer()

When implemented in a derived class, returns class-specific AutomationPeer implementations for the Silverlight automation infrastructure.

Declaration

protected virtual AutomationPeer OnCreateAutomationPeer()

Returns

Type	Description
AutomationPeer	The class-specific AutomationPeer subclass to return.

OnGotFocus(RoutedEventArgs)

Raises the GotFocus event

Declaration

protected virtual void OnGotFocus(RoutedEventArgs eventArgs)

Parameters

Type	Name	Description
RoutedEventArgs	eventArgs	The arguments for the event.

OnKeyDown(KeyEventArgs)

Raises the KeyDown event

Declaration

protected virtual void OnKeyDown(KeyEventArgs eventArgs)

Parameters

Type	Name	Description
KeyEventArgs	eventArgs	The arguments for the event.

OnKeyUp(KeyEventArgs)

Raises the KeyUp event

Declaration

protected virtual void OnKeyUp(KeyEventArgs eventArgs)

Parameters

Type	Name	Description
KeyEventArgs	eventArgs	The arguments for the event.

OnLostFocus(RoutedEventArgs)

Raises the LostFocus event

Declaration

protected virtual void OnLostFocus(RoutedEventArgs eventArgs)

Parameters

Type	Name	Description
RoutedEventArgs	eventArgs	The arguments for the event.

OnLostMouseCapture(MouseEventArgs)

Called before the LostMouseCapture event occurs to provide handling for the event in a derived class without attaching a delegate.

Declaration

protected virtual void OnLostMouseCapture(MouseEventArgs e)

Parameters

Type	Name	Description
MouseEventArgs	e	A MouseEventArgs that contains the event data.

OnMouseEnter(MouseEventArgs)

Raises the PointerEntered event

Declaration

protected virtual void OnMouseEnter(MouseEventArgs eventArgs)

Parameters

Type	Name	Description
MouseEventArgs	eventArgs	The arguments for the event.

OnMouseLeave(MouseEventArgs)

Raises the PointerExited event

Declaration

protected virtual void OnMouseLeave(MouseEventArgs eventArgs)

Parameters

Type	Name	Description
MouseEventArgs	eventArgs	The arguments for the event.

OnMouseLeftButtonDown(MouseButtonEventArgs)

Raises the PointerPressed event

Declaration

protected virtual void OnMouseLeftButtonDown(MouseButtonEventArgs eventArgs)

Parameters

Type	Name	Description
MouseButtonEventArgs	eventArgs	The arguments for the event.

OnMouseLeftButtonUp(MouseButtonEventArgs)

Raises the PointerReleased event

Declaration

protected virtual void OnMouseLeftButtonUp(MouseButtonEventArgs eventArgs)

Parameters

Type	Name	Description
MouseButtonEventArgs	eventArgs	The arguments for the event.

OnMouseMove(MouseEventArgs)

Raises the PointerMoved event

Declaration

protected virtual void OnMouseMove(MouseEventArgs eventArgs)

Parameters

Type	Name	Description
MouseEventArgs	eventArgs	The arguments for the event.

OnMouseRightButtonDown(MouseButtonEventArgs)

Raises the MouseRightButtonDown event

Declaration

protected virtual void OnMouseRightButtonDown(MouseButtonEventArgs eventArgs)

Parameters

Type	Name	Description
MouseButtonEventArgs	eventArgs	The arguments for the event.

OnMouseRightButtonUp(MouseButtonEventArgs)

Raises the RightTapped event

Declaration

protected virtual void OnMouseRightButtonUp(MouseButtonEventArgs eventArgs)

Parameters

Type	Name	Description
MouseButtonEventArgs	eventArgs	The arguments for the event.

OnMouseWheel(MouseWheelEventArgs)

Raises the PointerWheelChanged event

Declaration

protected virtual void OnMouseWheel(MouseWheelEventArgs eventArgs)

Parameters

Type	Name	Description
MouseWheelEventArgs	eventArgs	The arguments for the event.

OnPropertyChanged(DependencyPropertyChangedEventArgs)

Invoked whenever the effective value of any dependency property on this DependencyObject has been updated. The specific dependency property that changed is reported in the event data.

Declaration

protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e)

Parameters

Type	Name	Description
DependencyPropertyChangedEventArgs	e	Event data that will contain the dependency property identifier of interest, the property metadata for the type, and old and new values.

Overrides

DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs)

OnTapped(TappedRoutedEventArgs)

Raises the Tapped event

Declaration

protected virtual void OnTapped(TappedRoutedEventArgs eventArgs)

Parameters

Type	Name	Description
TappedRoutedEventArgs	eventArgs	The arguments for the event.

OnTextInput(TextCompositionEventArgs)

Called before the TextInput event occurs.

Declaration

protected virtual void OnTextInput(TextCompositionEventArgs eventArgs)

Parameters

Type	Name	Description
TextCompositionEventArgs	eventArgs	A TextCompositionEventArgs that contains the event data.

OnTextInputStart(TextCompositionEventArgs)

Called before the TextInputStart event occurs.

Declaration

protected virtual void OnTextInputStart(TextCompositionEventArgs e)

Parameters

Type	Name	Description
TextCompositionEventArgs	e	A TextCompositionEventArgs that contains the event data.

OnVisualChildrenChanged(DependencyObject, DependencyObject)

Called when the visual element collection of the visual object is modified.

Declaration

protected virtual void OnVisualChildrenChanged(DependencyObject visualAdded, DependencyObject visualRemoved)

Parameters

Type	Name	Description
DependencyObject	visualAdded	The UIElement that was added to the collection.
DependencyObject	visualRemoved	The UIElement that was removed from the collection.

OnVisualParentChanged(DependencyObject)

Called when the parent of the visual object is changed.

Declaration

protected virtual void OnVisualParentChanged(DependencyObject oldParent)

Parameters

Type	Name	Description
DependencyObject	oldParent	A value of type DependencyObject that represents the previous parent of the UIElement object. If the UIElement object did not have a previous parent, the value of the parameter is null.

ReleaseMouseCapture()

Releases pointer captures for capture of one specific pointer by this UIElement.

Declaration

public void ReleaseMouseCapture()

RemoveHandler(RoutedEvent, Delegate)

Removes the specified routed event handler from this UIElement.

Declaration

public void RemoveHandler(RoutedEvent routedEvent, Delegate handler)

Parameters

Type	Name	Description
RoutedEvent	routedEvent	The identifier of the routed event for which the handler is attached.
System.Delegate	handler	The specific handler implementation to remove from the event handler collection on this UIElement.

Exceptions

Type	Condition
System.ArgumentNullException	routedEvent or handler is null.
System.ArgumentException	routedEvent does not represent a supported routed event.-or-handler does not implement a supported delegate.
System.NotImplementedException	Attempted to remove handler for an event not supported by the current platform variation.

RemoveVisualChild(UIElement)

Removes the parent-child relationship between two visuals.

Declaration

protected void RemoveVisualChild(UIElement child)

Parameters

Type	Name	Description
UIElement	child	The child visual object to remove from the parent visual.

TransformToVisual(UIElement)

Returns a transform object that can be used to transform coordinates from the UIElement to the specified object.

Declaration

public GeneralTransform TransformToVisual(UIElement visual)

Parameters

Type	Name	Description
UIElement	visual	The object to compare to the current object for purposes of obtaining the transform.

Returns

Type	Description
GeneralTransform	The transform information as an object. Call methods on this object to get a practical transform.

UpdateLayout()

Ensures that all positions of child objects of a UIElement are properly updated for layout.

Declaration

public void UpdateLayout()

Events

DragEnter

Declaration

[NotImplemented]
public event DragEventHandler DragEnter

Event Type

Type	Description
DragEventHandler

DragLeave

Declaration

[NotImplemented]
public event DragEventHandler DragLeave

Event Type

Type	Description
DragEventHandler

DragOver

Declaration

[NotImplemented]
public event DragEventHandler DragOver

Event Type

Type	Description
DragEventHandler

Drop

Declaration

[NotImplemented]
public event DragEventHandler Drop

Event Type

Type	Description
DragEventHandler

GotFocus

Occurs when the pointer device that previously initiated a Press action is pressed, while within this element. Note that ONLY sender's informations are currently filled (not pointer's)

Declaration

public event RoutedEventHandler GotFocus

Event Type

Type	Description
RoutedEventHandler

IsEnabledChanged

Occurs when the IsEnabled property changes.

Declaration

public event DependencyPropertyChangedEventHandler IsEnabledChanged

Event Type

Type	Description
DependencyPropertyChangedEventHandler

IsVisibleChanged

Occurs when the value of the IsVisible property changes on this element.

Declaration

public event DependencyPropertyChangedEventHandler IsVisibleChanged

Event Type

Type	Description
DependencyPropertyChangedEventHandler

KeyDown

Occurs when a keyboard key is pressed while the UIElement has focus.

Declaration

public event KeyEventHandler KeyDown

Event Type

Type	Description
KeyEventHandler

KeyUp

Occurs when a keyboard key is released while the UIElement has focus.

Declaration

public event KeyEventHandler KeyUp

Event Type

Type	Description
KeyEventHandler

LostFocus

Occurs when a UIElement loses focus.

Declaration

public event RoutedEventHandler LostFocus

Event Type

Type	Description
RoutedEventHandler

LostMouseCapture

Declaration

public event MouseEventHandler LostMouseCapture

Event Type

Type	Description
MouseEventHandler

MouseEnter

Occurs when a pointer enters the hit test area of this element.

Declaration

public event MouseEventHandler MouseEnter

Event Type

Type	Description
MouseEventHandler

MouseLeave

Occurs when a pointer leaves the hit test area of this element.

Declaration

public event MouseEventHandler MouseLeave

Event Type

Type	Description
MouseEventHandler

MouseLeftButtonDown

Occurs when the pointer device that previously initiated a Press action is pressed, while within this element.

Declaration

public event MouseButtonEventHandler MouseLeftButtonDown

Event Type

Type	Description
MouseButtonEventHandler

MouseLeftButtonUp

Occurs when the pointer device that previously initiated a Press action is released, while within this element.

Declaration

public event MouseButtonEventHandler MouseLeftButtonUp

Event Type

Type	Description
MouseButtonEventHandler

MouseMove

Occurs when the pointer device that previously initiated a Press action is moved, while within this element.

Declaration

public event MouseEventHandler MouseMove

Event Type

Type	Description
MouseEventHandler

MouseRightButtonDown

Declaration

public event MouseButtonEventHandler MouseRightButtonDown

Event Type

Type	Description
MouseButtonEventHandler

MouseRightButtonUp

Occurs when a right-tap input stimulus happens while the pointer is over the element.

Declaration

public event MouseButtonEventHandler MouseRightButtonUp

Event Type

Type	Description
MouseButtonEventHandler

MouseWheel

Occurs when the user rotates the mouse wheel while the mouse pointer is over a UIElement, or the UIElement has focus.

Declaration

public event MouseWheelEventHandler MouseWheel

Event Type

Type	Description
MouseWheelEventHandler

Tapped

Occurs when an otherwise unhandled Tap interaction occurs over the hit test area of this element.

Declaration

public event TappedEventHandler Tapped

Event Type

Type	Description
TappedEventHandler

TextInput

Occurs when a UI element gets text in a device-independent manner.

Declaration

public event TextCompositionEventHandler TextInput

Event Type

Type	Description
TextCompositionEventHandler

TextInputStart

Occurs when a UI element initially gets text in a device-independent manner.

Declaration

public event TextCompositionEventHandler TextInputStart

Event Type

Type	Description
TextCompositionEventHandler

TextInputUpdate

Occurs when text continues to be composed via an input method editor (IME).

Declaration

[NotImplemented]
public event TextCompositionEventHandler TextInputUpdate

Event Type

Type	Description
TextCompositionEventHandler

Extension Methods

DependencyObjectHelper.GetSelfAndAncestors(DependencyObject)

UIElementExtendedRoutedEventExtensions.AddHandler(UIElement, ExtendedRoutedEvent, Delegate, Boolean)

UIElementExtendedRoutedEventExtensions.RemoveHandler(UIElement, ExtendedRoutedEvent, Delegate)

VisualTreeExtensions.GetVisualAncestors(DependencyObject)

VisualTreeExtensions.GetVisualAncestorsAndSelf(DependencyObject)

VisualTreeExtensions.GetVisualChildren(DependencyObject)

VisualTreeExtensions.GetVisualChildrenAndSelf(DependencyObject)

VisualTreeExtensions.GetVisualDescendants(DependencyObject)

VisualTreeExtensions.GetVisualDescendantsAndSelf(DependencyObject)

VisualTreeExtensions.GetVisualSiblings(DependencyObject)

VisualTreeExtensions.GetVisualSiblingsAndSelf(DependencyObject)