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TextBlock Class

Stellt ein einfaches Steuerelement für die Anzeige von kleinen Textmengen bereit.

Vererbung

Object
  DependencyObject
    UIElement
      FrameworkElement
        TextBlock

Syntax


public sealed class TextBlock : FrameworkElement


<TextBlock ...>text</TextBlock>
-or-
<TextBlock>
  oneOrMoreInlineElements
</TextBlock>
-or-
<TextBlock .../>

XAML Values

text

Innerer Text, der in TextBlock angezeigt wird. Dieser Text wird als Wert der Text-Eigenschaft verwendet. Außerdem wird ein einzelnes neues Run-Objekt in der Inlines-Auflistung erstellt, die den gleichen Text enthält.

oneOrMoreInlineElements

Ein oder mehrere Run-Elemente oder LineBreak-Elemente.

Attribute

[ContentProperty("Name=Text")]
[MarshalingBehavior(Agile)]
[Threading(Both)]
[Version(0x06020000)]
[WebHostHidden()]

Member

TextBlockKlasse hat diese Membertypen:

Konstruktoren

TextBlockKlasse hat diese Konstruktoren.

KonstruktorBeschreibung
TextBlock Initializes a new instance of the TextBlock class.

 

Ereignisse

TextBlockKlasse hat diese Ereignisse.

EreignisBeschreibung
ContextMenuOpening Occurs when the system processes an interaction that displays a context menu.
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)
SelectionChanged Occurs when the text selection has changed.
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 TextBlock 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 TextBlock, 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)
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)
Select Selects a range of text in the TextBlock.
SelectAll Selects the entire contents in the TextBlock.
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 TextBlockKlasse 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

SchreibgeschütztReturns a value by which each line of text is offset from a baseline.

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)

CharacterSpacing

Lese-/SchreibzugriffGets or sets the uniform spacing between characters, in units of 1/1000 of an em.

CharacterSpacingProperty

SchreibgeschütztIdentifies the CharacterSpacing dependency property.

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 object for the end of text content in the TextBlock.

ContentStart

SchreibgeschütztGets a TextPointer object for the start of text content in the TextBlock.

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)

FontFamily

Lese-/SchreibzugriffGets or sets the preferred top-level font family for the text content in this element.

FontFamilyProperty

SchreibgeschütztIdentifies the FontFamily dependency property.

FontSize

Lese-/SchreibzugriffGets or sets the font size for the text content in this element.

FontSizeProperty

SchreibgeschütztIdentifies the FontSize dependency property.

FontStretch

Lese-/SchreibzugriffGets or sets the font stretch for the text content in this element.

FontStretchProperty

SchreibgeschütztIdentifies the FontStretch dependency property.

FontStyle

Lese-/SchreibzugriffGets or sets the font style for the content in this element.

FontStyleProperty

SchreibgeschütztIdentifies the FontStyle dependency property.

FontWeight

Lese-/SchreibzugriffGets or sets the top-level font weight for the TextBlock.

FontWeightProperty

SchreibgeschütztIdentifies the FontWeight dependency property.

Foreground

Lese-/SchreibzugriffGets or sets the Brush to apply to the text contents of the TextBlock.

ForegroundProperty

SchreibgeschütztIdentifies the Foreground 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)

Inlines

SchreibgeschütztGets the collection of inline text elements within a TextBlock.

IsColorFontEnabled

Lese-/SchreibzugriffGets or sets a value that determines whether font glyphs that contain color layers, such as Segoe UI Emoji, are rendered in color.

IsColorFontEnabledProperty

SchreibgeschütztIdentifies the IsColorFontEnabled dependency property.

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)

IsTextSelectionEnabled

Lese-/SchreibzugriffGets or sets a value that indicates whether text selection is enabled in the TextBlock, either through user action or calling selection-related API.

IsTextSelectionEnabledProperty

SchreibgeschütztIdentifies the IsTextSelectionEnabled dependency property.

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)

LineHeight

Lese-/SchreibzugriffGets or sets the height of each line of content.

LineHeightProperty

SchreibgeschütztIdentifies the LineHeight dependency property.

LineStackingStrategy

Lese-/SchreibzugriffGets or sets a value that indicates how a line box is determined for each line of text in the TextBlock.

LineStackingStrategyProperty

SchreibgeschütztIdentifies the LineStackingStrategy dependency property.

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 TextBlock.

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)

OpticalMarginAlignment

Lese-/SchreibzugriffGet or sets a value that indicates how the font is modified to align with fonts of different sizes.

OpticalMarginAlignmentProperty

SchreibgeschütztIdentifies the OpticalMarginAlignment 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 TextBlock.

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)

SelectedText

SchreibgeschütztGets a text range of selected text.

SelectedTextProperty

SchreibgeschütztIdentifies the SelectedText dependency property.

SelectionEnd

SchreibgeschütztGets the end position of the text selected in the TextBlock.

SelectionHighlightColor

Lese-/SchreibzugriffGets or sets the brush used to highlight the selected text.

SelectionHighlightColorProperty

SchreibgeschütztIdentifies the SelectionHighlightColor dependency property.

SelectionStart

SchreibgeschütztGets the starting position of the text selected in the TextBlock.

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)

Text

Lese-/SchreibzugriffGets or sets the text contents of a TextBlock.

TextAlignment

Lese-/SchreibzugriffGets or sets a value that indicates the horizontal alignment of text content.

TextAlignmentProperty

SchreibgeschütztIdentifies the TextAlignment dependency property.

TextLineBounds

Lese-/SchreibzugriffGets or sets a value that indicates how the line box height is determined for each line of text in the TextBlock.

TextLineBoundsProperty

SchreibgeschütztIdentifies the TextLineBounds dependency property.

TextProperty

SchreibgeschütztIdentifies the Text dependency property.

TextReadingOrder

Lese-/SchreibzugriffGets or sets a value that indicates how the reading order is determined for the TextBlock.

TextReadingOrderProperty

SchreibgeschütztIdentifies the TextReadingOrder dependency property.

TextTrimming

Lese-/SchreibzugriffGets or sets the text trimming behavior to employ when content overflows the content area.

TextTrimmingProperty

SchreibgeschütztIdentifies the TextTrimming dependency property.

TextWrapping

Lese-/SchreibzugriffGets or sets how the TextBlock wraps text.

TextWrappingProperty

SchreibgeschütztIdentifies the TextWrapping dependency property.

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)

 

Beispiele

Im folgenden Beispiel wird veranschaulicht, wie mit der LineStackingStrategy-Eigenschaft bestimmt wird, wie die Zeilenfelder für Textzeilen eines TextBlock erstellt werden. Der erste TextBlock hat einen LineStackingStrategy-Wert MaxHeight und der zweite TextBlock den Wert BlockLineHeight.


<StackPanel>

<!-- This TextBlock has a LineStackingStrategy set to "MaxHeight". -->
<TextBlock FontFamily="Verdana"
           LineStackingStrategy="MaxHeight" 
           LineHeight="10" 
           Width="500" 
           TextWrapping="Wrap" >
    Use the <Run FontSize="30">LineStackingStrategy</Run> property to determine how a line box is
    created for each line. A value of <Run FontSize="20">MaxHeight</Run> specifies that the stack
    height is the smallest value that contains all the inline elements on that line when those
    elements are properly aligned. A value of <Run FontSize="20">BlockLineHeight</Run> specifies
    that the stack height is determined by the block element LineHeight property value.
</TextBlock>

    <!-- With a margin pushing down 20 pixels, draw a line just above the second textblock. -->
    <!-- The fonts will reach above the LineHeight size and over the line. -->
<StackPanel Margin="0,20,0,0" HorizontalAlignment="Center">
    <Line Stroke="Green"  X2="500" />
</StackPanel>

            <!-- Here is the same TextBlock but the LineStackingStrategy is set to "BlockLineHeight". -->
<TextBlock FontFamily="Verdana"
           LineStackingStrategy="BlockLineHeight" 
           LineHeight="10" 
           Width="500" 
           TextWrapping="Wrap">
    Use the <Run FontSize="30">LineStackingStrategy</Run> property to determine how a line box is
    created for each line. A value of <Run FontSize="20">MaxHeight</Run> specifies that the stack
    height is the smallest value that contains all the inline elements on that line when those
    elements are properly aligned. A value of <Run FontSize="20">BlockLineHeight</Run> specifies
    that the stack height is determined by the block element LineHeight property value.
</TextBlock>

</StackPanel>


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

 

 

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