RichTextBlockOverflow Class

Stellt einen Rich-Text-Anzeigenüberlaufcontainer dar. Dieses Element kann keine direkten Inhalte aufweisen. Der einzige Zweck von RichTextBlockOverflow ist, Textinhalt anzuzeigen, der nicht in die Begrenzungen des RichTextBlock-Elements oder eines anderen RichTextBlockOverflow-Elements passt.

Vererbung

Object
  DependencyObject
    UIElement
      FrameworkElement
        RichTextBlockOverflow

Syntax


Public NotInheritable Class RichTextBlockOverflow
    Inherits FrameworkElement


<RichTextBlockOverflow .../>

Attribute

[MarshalingBehavior(Agile)]
[Threading(Both)]
[Version(0x06020000)]
[WebHostHidden()]

Member

RichTextBlockOverflowKlasse hat diese Membertypen:

Konstruktoren

RichTextBlockOverflowKlasse hat diese Konstruktoren.

KonstruktorBeschreibung
RichTextBlockOverflow Initializes a new instance of the RichTextBlockOverflow class.

 

Ereignisse

RichTextBlockOverflowKlasse hat diese Ereignisse.

EreignisBeschreibung
DataContextChanged Occurs when the value of the FrameworkElement.DataContext property changes. (Geerbt von FrameworkElement)
DoubleTapped Occurs when an otherwise unhandled DoubleTap interaction occurs over the hit test area of this element. (Geerbt von UIElement)
DragEnter Occurs when the input system reports an underlying drag event with this element as the target. (Geerbt von UIElement)
DragLeave Occurs when the input system reports an underlying drag event with this element as the origin. (Geerbt von UIElement)
DragOver Occurs when the input system reports an underlying drag event with this element as the potential drop target. (Geerbt von UIElement)
Drop Occurs when the input system reports an underlying drop event with this element as the drop target. (Geerbt von UIElement)
GotFocus Occurs when a UIElement receives focus. (Geerbt von UIElement)
Holding Occurs when an otherwise unhandled Hold interaction occurs over the hit test area of this element. (Geerbt von UIElement)
KeyDown Occurs when a keyboard key is pressed while the UIElement has focus. (Geerbt von UIElement)
KeyUp Occurs when a keyboard key is released while the UIElement has focus. (Geerbt von UIElement)
LayoutUpdated Occurs when the layout of the visual tree changes, due to layout-relevant properties changing value or some other action that refreshes the layout. (Geerbt von FrameworkElement)
Loaded Occurs when a FrameworkElement has been constructed and added to the object tree, and is ready for interaction. (Geerbt von FrameworkElement)
LostFocus Occurs when a UIElement loses focus. (Geerbt von UIElement)
ManipulationCompleted Occurs when a manipulation on the UIElement is complete. (Geerbt von UIElement)
ManipulationDelta Occurs when the input device changes position during a manipulation. (Geerbt von UIElement)
ManipulationInertiaStarting Occurs when the input device loses contact with the UIElement object during a manipulation and inertia begins. (Geerbt von UIElement)
ManipulationStarted Occurs when an input device begins a manipulation on the UIElement. (Geerbt von UIElement)
ManipulationStarting Occurs when the manipulation processor is first created. (Geerbt von UIElement)
PointerCanceled Occurs when a pointer that made contact abnormally loses contact. (Geerbt von UIElement)
PointerCaptureLost Occurs when pointer capture previously held by this element moves to another element or elsewhere. (Geerbt von UIElement)
PointerEntered Occurs when a pointer enters the hit test area of this element. (Geerbt von UIElement)
PointerExited Occurs when a pointer leaves the hit test area of this element. (Geerbt von UIElement)
PointerMoved Occurs when a pointer moves while the pointer remains within the hit test area of this element. (Geerbt von UIElement)
PointerPressed Occurs when the pointer device initiates a Press action within this element. (Geerbt von UIElement)
PointerReleased Occurs when the pointer device that previously initiated a Press action is released, while within this element. (Geerbt von UIElement)
PointerWheelChanged Occurs when the delta value of a pointer wheel changes. (Geerbt von UIElement)
RightTapped Occurs when a right-tap input stimulus happens while the pointer is over the element. (Geerbt von UIElement)
SizeChanged Occurs when either the ActualHeight or the ActualWidth property changes value on a FrameworkElement. (Geerbt von FrameworkElement)
Tapped Occurs when an otherwise unhandled Tap interaction occurs over the hit test area of this element. (Geerbt von UIElement)
Unloaded Occurs when this object is no longer connected to the main object tree. (Geerbt von FrameworkElement)

 

Methoden

The RichTextBlockOverflow Klasse hat diese Methoden. Es erbt auch Methoden von Object Klasse.

MethodeBeschreibung
AddHandler 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 even if the event is handled elsewhere. (Geerbt von UIElement)
Arrange 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. (Geerbt von UIElement)
ArrangeOverride Provides the behavior for the Arrange pass of layout. Classes can override this method to define their own Arrange pass behavior. (Geerbt von FrameworkElement)
CancelDirectManipulations Cancels ongoing direct manipulation processing (system-defined panning/zooming) on any ScrollViewer parent that contains the current UIElement. (Geerbt von UIElement)
CapturePointer Sets pointer capture to a UIElement. Once captured, only the element that has capture will fire pointer-related events. (Geerbt von UIElement)
ClearValue Clears the local value of a dependency property. (Geerbt von DependencyObject)
FindName Retrieves an object that has the specified identifier name. (Geerbt von FrameworkElement)
FindSubElementsForTouchTargeting Enables a UIElement subclass to expose child elements that assist with resolving touch targeting. (Geerbt von UIElement)
Focus Focuses the RichTextBlockOverflow, as if it were a conventionally focusable control.
GetAnimationBaseValue Returns any base value established for a dependency property, which would apply in cases where an animation is not active. (Geerbt von DependencyObject)
GetBindingExpression Returns the BindingExpression that represents the binding on the specified property. (Geerbt von FrameworkElement)
GetPositionFromPoint Returns a TextPointer text reference from a RichTextBlockOverflow by hit-testing a specific Point within the text display area.
GetValue Returns the current effective value of a dependency property from a DependencyObject. (Geerbt von DependencyObject)
GoToElementStateCore When implemented in a derived class, enables per-state construction of a visual tree for a control template in code, rather than by loading XAML for all states at control startup. (Geerbt von FrameworkElement)
InvalidateArrange Invalidates the arrange state (layout) for a UIElement. After the invalidation, the UIElement will have its layout updated, which will occur asynchronously. (Geerbt von UIElement)
InvalidateMeasure Invalidates the measurement state (layout) for a UIElement. (Geerbt von UIElement)
Measure Updates the DesiredSize of a UIElement. Typically, objects that implement custom layout for their layout children call this method from their own MeasureOverride implementations to form a recursive layout update. (Geerbt von UIElement)
MeasureOverride Provides the behavior for the Measure pass of the layout cycle. Classes can override this method to define their own Measure pass behavior. (Geerbt von FrameworkElement)
OnApplyTemplate Invoked whenever application code or internal processes (such as a rebuilding layout pass) call ApplyTemplate. In simplest terms, this means the method is called just before a UI element displays in your app. Override this method to influence the default post-template logic of a class. (Geerbt von FrameworkElement)
OnCreateAutomationPeer When implemented in a derived class, returns class-specific AutomationPeer implementations for the Microsoft UI Automation infrastructure. (Geerbt von UIElement)
OnDisconnectVisualChildren Override this method to implement how layout and logic should behave when items are removed from a class-specific content or children property. (Geerbt von UIElement)
ReadLocalValue Returns the local value of a dependency property, if a local value is set. (Geerbt von DependencyObject)
ReleasePointerCapture Releases pointer captures for capture of one specific pointer by this UIElement. (Geerbt von UIElement)
ReleasePointerCaptures Releases all pointer captures held by this element. (Geerbt von UIElement)
RemoveHandler Removes the specified routed event handler from this UIElement. Typically the handler in question was added by AddHandler. (Geerbt von UIElement)
SetBinding Attaches a binding to a FrameworkElement, using the provided binding object. (Geerbt von FrameworkElement)
SetValue Sets the local value of a dependency property on a DependencyObject. (Geerbt von DependencyObject)
TransformToVisual Returns a transform object that can be used to transform coordinates from the UIElement to the specified object. (Geerbt von UIElement)
UpdateLayout Ensures that all positions of child objects of a UIElement are properly updated for layout. (Geerbt von UIElement)

 

Eigenschaften

Der RichTextBlockOverflowKlasse hat diese Eigenschaften.

EigenschaftZugriffstypBeschreibung

ActualHeight

SchreibgeschütztGets the rendered height of a FrameworkElement. (Geerbt von FrameworkElement)

ActualWidth

SchreibgeschütztGets the rendered width of a FrameworkElement. (Geerbt von FrameworkElement)

AllowDrop

Lese-/SchreibzugriffGets or sets a value that determines whether this UIElement can be a drop target for purposes of drag-and-drop operations. (Geerbt von UIElement)

BaselineOffset

SchreibgeschütztGets a value that represents the offset in pixels from the top of the content to the baseline of the first paragraph. The baseline of the paragraph is the baseline of the first line in it.

BaseUri

SchreibgeschütztGets a Uniform Resource Identifier (URI) that represents the base Uniform Resource Identifier (URI) for an XAML-constructed object at XAML load time. This property is useful for Uniform Resource Identifier (URI) resolution at run time. (Geerbt von FrameworkElement)

CacheMode

Lese-/SchreibzugriffGets or sets a value that indicates that rendered content should be cached as a composited bitmap when possible. (Geerbt von UIElement)

Clip

Lese-/SchreibzugriffGets or sets the RectangleGeometry used to define the outline of the contents of a UIElement. (Geerbt von UIElement)

CompositeMode

Lese-/SchreibzugriffGets or sets a property that declares alternate composition and blending modes for the element in its parent layout and window. This is relevant for elements that are involved in a mixed XAML / Microsoft DirectX UI. (Geerbt von UIElement)

ContentEnd

SchreibgeschütztGets a TextPointer that indicates the end of content in the RichTextBlockOverflow.

ContentSource

SchreibgeschütztGets the RichTextBlock content source of this RichTextBlockOverflow.

ContentStart

SchreibgeschütztGets a TextPointer that indicates the start of content in the RichTextBlockOverflow.

DataContext

Lese-/SchreibzugriffGets or sets the data context for a FrameworkElement when it participates in data binding. (Geerbt von FrameworkElement)

DesiredSize

SchreibgeschütztGets the size that this UIElement computed during the measure pass of the layout process. (Geerbt von UIElement)

Dispatcher

SchreibgeschütztGets the CoreDispatcher that this object is associated with. (Geerbt von DependencyObject)

FlowDirection

Lese-/SchreibzugriffGets or sets the direction in which text and other UI elements flow within any parent element that controls their layout. This property can be set to either LeftToRight or RightToLeft. Setting FlowDirection to RightToLeft on any element sets the alignment to the right, the reading order to right-to-left and the layout of the control to flow from right to left. (Geerbt von FrameworkElement)

HasOverflowContent

SchreibgeschütztGets a value that indicates whether the RichTextBlockOverflow has content that extends beyond its bounds, that can provide content to an OverflowContentTarget element.

HasOverflowContentProperty

SchreibgeschütztIdentifies the HasOverflowContent dependency property.

Height

Lese-/SchreibzugriffGets or sets the suggested height of a FrameworkElement. (Geerbt von FrameworkElement)

HorizontalAlignment

Lese-/SchreibzugriffGets or sets the horizontal alignment characteristics that are applied to a FrameworkElement when it is composed in a layout parent, such as a panel or items control. (Geerbt von FrameworkElement)

IsDoubleTapEnabled

Lese-/SchreibzugriffGets or sets a value that determines whether the DoubleTapped event can originate from that element. (Geerbt von UIElement)

IsHitTestVisible

Lese-/SchreibzugriffGets or sets whether the contained area of this UIElement can return true values for hit testing. (Geerbt von UIElement)

IsHoldingEnabled

Lese-/SchreibzugriffGets or sets a value that determines whether the Holding event can originate from that element. (Geerbt von UIElement)

IsRightTapEnabled

Lese-/SchreibzugriffGets or sets a value that determines whether the RightTapped event can originate from that element. (Geerbt von UIElement)

IsTapEnabled

Lese-/SchreibzugriffGets or sets a value that determines whether the Tapped event can originate from that element. (Geerbt von UIElement)

Language

Lese-/SchreibzugriffGets or sets localization/globalization language information that applies to a FrameworkElement, and also to all child elements of the current FrameworkElement in the object representation and in UI. (Geerbt von FrameworkElement)

ManipulationMode

Lese-/SchreibzugriffGets or sets the ManipulationModes value used for UIElement behavior and interaction with gestures. Setting this value enables handling the manipulation events from this element in app code. (Geerbt von UIElement)

Margin

Lese-/SchreibzugriffGets or sets the outer margin of a FrameworkElement. (Geerbt von FrameworkElement)

MaxHeight

Lese-/SchreibzugriffGets or sets the maximum height constraint of a FrameworkElement. (Geerbt von FrameworkElement)

MaxLines

Lese-/SchreibzugriffGets or sets the maximum lines of text shown in the RichTextBlockOverflow.

MaxLinesProperty

SchreibgeschütztIdentifies the MaxLines dependency property.

MaxWidth

Lese-/SchreibzugriffGets or sets the maximum width constraint of a FrameworkElement. (Geerbt von FrameworkElement)

MinHeight

Lese-/SchreibzugriffGets or sets the minimum height constraint of a FrameworkElement. (Geerbt von FrameworkElement)

MinWidth

Lese-/SchreibzugriffGets or sets the minimum width constraint of a FrameworkElement. (Geerbt von FrameworkElement)

Name

Lese-/SchreibzugriffGets or sets the identifying name of the object. When a XAML processor creates the object tree from XAML markup, run-time code can refer to the XAML-declared object by this name. (Geerbt von FrameworkElement)

Opacity

Lese-/SchreibzugriffGets or sets the degree of the object's opacity. (Geerbt von UIElement)

OverflowContentTarget

Lese-/SchreibzugriffGets or sets a reference to another RichTextBlockOverflow that is the linked target for any text overflow from this RichTextBlockOverflow.

OverflowContentTargetProperty

SchreibgeschütztIdentifies the OverflowContentTarget dependency property.

Padding

Lese-/SchreibzugriffGets or sets a value that indicates the thickness of padding space between the boundaries of the content area and the content displayed by a RichTextBlockOverflow.

PaddingProperty

SchreibgeschütztIdentifies the Padding dependency property.

Parent

SchreibgeschütztGets the parent object of this FrameworkElement in the object tree. (Geerbt von FrameworkElement)

PointerCaptures

SchreibgeschütztGets the set of all captured pointers, represented as Pointer values. (Geerbt von UIElement)

Projection

Lese-/SchreibzugriffGets or sets the perspective projection (3-D effect) to apply when rendering this element. (Geerbt von UIElement)

RenderSize

SchreibgeschütztGets the final render size of a UIElement. (Geerbt von UIElement)

RenderTransform

Lese-/SchreibzugriffGets or sets transform information that affects the rendering position of a UIElement. (Geerbt von UIElement)

RenderTransformOrigin

Lese-/SchreibzugriffGets or sets the origin point of any possible render transform declared by RenderTransform, relative to the bounds of the UIElement. (Geerbt von UIElement)

RequestedTheme

Lese-/SchreibzugriffGets or sets the UI theme that is used by the UIElement (and its child elements) for resource determination. The UI theme you specify with RequestedTheme can override the app-level RequestedTheme. (Geerbt von FrameworkElement)

Resources

Lese-/SchreibzugriffGets the locally defined resource dictionary. In XAML, you can establish resource items as child object elements of a frameworkElement.Resources property element, through XAML implicit collection syntax. (Geerbt von FrameworkElement)

Style

Lese-/SchreibzugriffGets or sets an instance Style that is applied for this object during layout and rendering. (Geerbt von FrameworkElement)

Tag

Lese-/SchreibzugriffGets or sets an arbitrary object value that can be used to store custom information about this object. (Geerbt von FrameworkElement)

Transitions

Lese-/SchreibzugriffGets or sets the collection of Transition style elements that apply to a UIElement. (Geerbt von UIElement)

Triggers

SchreibgeschütztGets the collection of triggers for animations that are defined for a FrameworkElement. Not commonly used. (Geerbt von FrameworkElement)

UseLayoutRounding

Lese-/SchreibzugriffGets 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. (Geerbt von UIElement)

VerticalAlignment

Lese-/SchreibzugriffGets or sets the vertical alignment characteristics that are applied to a FrameworkElement when it is composed in a parent object such as a panel or items control. (Geerbt von FrameworkElement)

Visibility

Lese-/SchreibzugriffGets 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. (Geerbt von UIElement)

Width

Lese-/SchreibzugriffGets or sets the width of a FrameworkElement. (Geerbt von FrameworkElement)

 

Hinweise

Sie können eine RichTextBlock-Klasse mit RichTextBlockOverflow-Elementen verwenden, um erweiterte Seitenlayouts zu erstellen. Der Inhalt für ein RichTextBlockOverflow-Element stammt immer von einem RichTextBlock-Element. Sie können RichTextBlockOverflow -Elemente verknüpfen, indem Sie sie als OverflowContentTarget von einem RichTextBlock oder von einem anderen RichTextBlockOverflow festlegen.

Beispiele

Hier zielt ein RichTextBlock auf ein RichTextBlockOverflow-Element ab, um ein mehrspaltiges Textlayout zu erstellen. Das erste RichTextBlockOverflow-Element zielt dann auf ein zweites RichTextBlockOverflow-Element, das seinen Inhaltsüberlauf empfängt. Der steuernde Layoutfaktor für die Art wie der Textüberlauf berechnet wird, ist die eingeschränkte Width und Height des übergeordneten Grid-Elements und der ColumnDefinition-Einstellungen, die das Grid-Element in drei gleiche Spalten mit einer Höhe bzw. Breite von 300 Pixeln unterteilen. Überlauf kann auch von FontSize und vielen weiteren Textformatierungseigenschaften verursacht werden, die Textzeichen ändern.


<Grid x:Name="columnGrid" Background="White" Width="900" Height="300">
    <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <RichTextBlock Grid.Column="0" IsTextSelectionEnabled="True" TextAlignment="Justify" 
                   OverflowContentTarget="{Binding ElementName=firstOverflowContainer}" 
                   TextIndent="12"
                   FontSize="12" FontFamily="Segoe UI" Foreground="#2a2a2a" Margin="20,0">
        <Paragraph>
            <Bold><Span Foreground="DarkSlateBlue" FontSize="16">Lorem ipsum dolor sit amet</Span></Bold>, consectetur adipiscing elit. Sed ac mi ipsum. Phasellus vel malesuada mauris. Donec pharetra, enim sit amet mattis tincidunt, felis nisi semper lectus, vel porta diam nisi in augue. Pellentesque lacus tortor, aliquam et faucibus id, rhoncus ut justo. Sed id lectus odio, eget pulvinar diam. Suspendisse eleifend ornare libero, in luctus purus aliquet non. Sed interdum, sem vitae rutrum rhoncus, felis ligula ultrices sem, in eleifend eros ante id neque. Vivamus quam lorem, varius vitae porta mollis, placerat quis est. Aenean eget sagittis massa. Sed tellus turpis, ullamcorper eget imperdiet vel, faucibus vel nisl. Nunc sed suscipit quam. Vivamus convallis faucibus dignissim. Fusce sollicitudin, quam vel cursus mattis, nisl velit tristique sapien, ac vestibulum ante arcu a nisl. Vestibulum commodo gravida ante at tincidunt. Vestibulum in ornare nunc. Nullam ut lorem vitae dui placerat lacinia sit amet a arcu. Nulla sit amet odio nisi. Praesent erat urna, venenatis ac adipiscing vel, congue at lectus. Proin ac metus at quam luctus ultricies.
        </Paragraph>
        <Paragraph>
            <Italic>This is an inline image.</Italic>
            <InlineUIContainer>
                <Border Background="Black">
                    <Image Source="Assets/SmallLogo.png" Height="30" Width="30"/>
                </Border>
            </InlineUIContainer> 
            Nam vitae ligula non ligula suscipit semper. Duis sed nulla metus, id hendrerit velit. Curabitur dolor purus, bibendum eu cursus lacinia, interdum vel augue. Aenean euismod eros et sapien vehicula dictum. Duis ullamcorper, turpis nec feugiat tincidunt, dui erat luctus risus, aliquam accumsan lacus est vel quam. Nunc lacus massa, varius eget accumsan id, congue sed orci. Duis dignissim hendrerit egestas. Proin ut turpis magna, sit amet porta erat. Nunc semper metus nec magna imperdiet nec vestibulum dui fringilla. Sed sed ante libero, nec porttitor mi. Ut luctus, neque vitae placerat egestas, urna leo auctor magna, sit amet ultricies ipsum felis quis sapien. Proin eleifend varius dui, at vestibulum nunc consectetur nec. Mauris nulla elit, ultrices a sodales non, aliquam ac est. Quisque sit amet risus nulla. Quisque vestibulum posuere velit, vitae vestibulum eros scelerisque sit amet. In in risus est, at laoreet dolor. Nullam aliquet pellentesque convallis. Ut vel tincidunt nulla. Mauris auctor tincidunt auctor.
        </Paragraph>
    </RichTextBlock>
    <RichTextBlockOverflow x:Name="firstOverflowContainer" Grid.Column="1" Margin="20,0"
                           OverflowContentTarget="{Binding ElementName=secondOverflowContainer}"/>
    <RichTextBlockOverflow x:Name="secondOverflowContainer" Grid.Column="2" Margin="20,0"/>
</Grid>


Weitere Beispiele finden Sie im XAML-Textanzeigenbeispiel in Szenario 4 zum Thema "Verknüpfte Textcontainer".

Anforderungen

Mindestens unterstützter Client

Windows 8 [Nur Windows Store-Apps]

Mindestens unterstützter Server

Windows Server 2012 [Nur Windows Store-Apps]

Namespace

Windows.UI.Xaml.Controls
Windows::UI::Xaml::Controls [C++]

Metadaten

Windows.winmd

Siehe auch

FrameworkElement
OverflowContentTarget
RichTextBlock
RichTextBock.OverflowContentTarget
XAML-Textanzeigenbeispiel

 

 

Anzeigen:
© 2014 Microsoft