Timeline.Completed Evento

public:
 event EventHandler ^ Completed;

public event EventHandler Completed;

member this.Completed : EventHandler 

Public Custom Event Completed As EventHandler 

Tipo de Evento

Exemplos

No exemplo seguinte, dois Storyboard objetos são usados para criar uma transição de animação entre duas imagens, armazenados usando ImageSource objetos e exibidos através de um Image controlo. Um storyboard reduz o controlo da imagem até desaparecer. Depois de concluído, o antigo ImageSource é trocado pelo outro ImageSource, e um segundo storyboard que expande o controlo da imagem até voltar a ser em tamanho normal.

<!-- TimelineCompletedExample.xaml 
     This example creates an animated transition between
     two images. When the user clicks the Start Transition button,
     a storyboard shrinks an image until it disappears. 
     The Completed event is used to notify the class when this
     storyboard has completed. The code behind file handles
     this event by swapping the image and making it visible again.
-->
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  x:Class="SDKSample.TimelineCompletedExample"
  WindowTitle="Timeline Completed Example"
  Loaded="exampleLoaded">
  <Page.Resources>

    <!-- A simple picture of a rectangle. -->
    <DrawingImage x:Key="RectangleDrawingImage">
      <DrawingImage.Drawing>
        <DrawingGroup>
          <GeometryDrawing Brush="White">
            <GeometryDrawing.Geometry>
              <RectangleGeometry Rect="0,0,100,100"  />
            </GeometryDrawing.Geometry>
          </GeometryDrawing>
          <GeometryDrawing Brush="Orange">
            <GeometryDrawing.Geometry>
              <RectangleGeometry Rect="25,25,50,50"  />
            </GeometryDrawing.Geometry>
          </GeometryDrawing>
        </DrawingGroup>
      </DrawingImage.Drawing>
    </DrawingImage>

    <!-- A simple picture of a cirlce. -->
    <DrawingImage x:Key="CircleDrawingImage">
      <DrawingImage.Drawing>
        <DrawingGroup>
          <GeometryDrawing Brush="White">
            <GeometryDrawing.Geometry>
              <RectangleGeometry Rect="0,0,100,100"  />
            </GeometryDrawing.Geometry>
          </GeometryDrawing>
          <GeometryDrawing>
            <GeometryDrawing.Geometry>
              <EllipseGeometry Center="50,50" RadiusX="25" RadiusY="25"  />
            </GeometryDrawing.Geometry>
            <GeometryDrawing.Brush>
              <RadialGradientBrush GradientOrigin="0.75,0.25" Center="0.75,0.25">
                <GradientStop Offset="0.0" Color="White" />
                <GradientStop Offset="1.0" Color="LimeGreen" />
              </RadialGradientBrush>
            </GeometryDrawing.Brush>
          </GeometryDrawing>
        </DrawingGroup>
      </DrawingImage.Drawing>
    </DrawingImage>

    <!-- Define the storyboard that enlarges the image.
         This storyboard is applied using code when
         ZoomOutStoryboard completes. -->
    <Storyboard x:Key="ZoomInStoryboardResource">
      <DoubleAnimation 
        Storyboard.TargetName="AnimatedImageScaleTranform" 
        Storyboard.TargetProperty="ScaleX" 
        Duration="0:0:5" To="1" />
      <DoubleAnimation 
       Storyboard.TargetName="AnimatedImageScaleTranform" 
       Storyboard.TargetProperty="ScaleY" 
       Duration="0:0:5" To="1" />
    </Storyboard>
  </Page.Resources>

  <StackPanel Margin="20" >
    <Border 
      BorderBrush="Gray" BorderThickness="2" 
      HorizontalAlignment="Center" VerticalAlignment="Center">

      <!-- Displays the current ImageSource. -->
      <Image
        Name="AnimatedImage" 
        Width="200" Height="200"
        RenderTransformOrigin="0.5,0.5">
        <Image.RenderTransform>
          <ScaleTransform x:Name="AnimatedImageScaleTranform" 
            ScaleX="1" ScaleY="1" />
        </Image.RenderTransform>
      </Image>
    </Border>


    <!-- This StackPanel contains buttons that control the storyboard. -->
    <StackPanel Orientation="Horizontal" Margin="0,30,0,0">

      <Button Name="BeginButton">Start Transition</Button>
      <Button Name="SkipToFillButton">Skip To Fill</Button>
      <Button Name="StopButton">Stop</Button>

      <StackPanel.Triggers>

        <!-- Begin the storyboard that shrinks the image. After the storyboard
             completes, -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="BeginButton">
          <BeginStoryboard Name="ZoomOutBeginStoryboard">
            <Storyboard x:Name="ZoomOutStoryboard" 
              Completed="zoomOutStoryboardCompleted" FillBehavior="Stop">
              <DoubleAnimation 
                Storyboard.TargetName="AnimatedImageScaleTranform" 
                Storyboard.TargetProperty="ScaleX" 
                Duration="0:0:5" To="0" FillBehavior="Stop" />
              <DoubleAnimation 
               Storyboard.TargetName="AnimatedImageScaleTranform" 
               Storyboard.TargetProperty="ScaleY" 
               Duration="0:0:5" To="0" FillBehavior="Stop" />
            </Storyboard>
          </BeginStoryboard>
        </EventTrigger>

        <!-- Advances ZoomOutStoryboard to its fill period.
             This action triggers the Completed event. -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="SkipToFillButton">
          <SkipStoryboardToFill BeginStoryboardName="ZoomOutBeginStoryboard" />
        </EventTrigger>

        <!-- Stops the storyboard. This action does not
             trigger the completed event. -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="StopButton">
          <StopStoryboard BeginStoryboardName="ZoomOutBeginStoryboard" />
        </EventTrigger>
      </StackPanel.Triggers>
    </StackPanel>
  </StackPanel>
</Page>

Observações

Se esta linha temporal for a linha temporal raiz de uma árvore temporal, ela terminou de jogar depois de atingir o fim do seu período ativo (o que inclui repetições) e todos os seus filhos terem atingido o fim dos seus períodos ativos. Se esta linha temporal for uma linha temporal filha, considera-se que terminou completamente de jogar quando a linha temporal raiz da árvore da linha temporal à qual pertence atinge o fim do seu período ativo e todas as linhas temporais filhas terminaram de jogar.

Parar uma linha temporal não desencadeia o evento concluído, mas saltá-la para o período de preenchimento sim.

O Object parâmetro do EventHandler gestor de eventos é o da linha temporal Clock.

Embora este gestor de eventos pareça estar associado a uma linha temporal, na verdade regista-se com a Clock criada para essa linha temporal. Para mais informações, consulte a Visão Geral dos Eventos de Tempo.