如何:在演示图板启动之后使用事件触发器来控制演示图板

此示例演示如何 Storyboard 在启动后对其进行控制。 若要 Storyboard 使用启动 XAML ,请使用 BeginStoryboard ,它将动画分散到它们动画处理的对象和属性,然后启动情节提要。 如果 BeginStoryboard 通过指定名称的属性来指定名称 Name ,则会使其成为可控制的情节提要。 然后,你可以在情节提要启动后以交互方式控制情节提要。

结合使用以下情节提要操作和 EventTrigger 对象控制情节提要。

示例

下面的示例使用可控制的情节提要操作以交互方式控制情节提要。

备注

若要查看使用代码控制情节提要的示例,请参阅 使用其交互式方法控制情节提要

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  WindowTitle="Controlling a Storyboard" >
  <StackPanel Margin="20" >

    <!-- This rectangle is animated. -->
    <Rectangle Name="myRectangle"
      Width="100" Height="20" Margin="12,0,0,5" Fill="#AA3333FF" HorizontalAlignment="Left" />

    <!-- This StackPanel contains all the Buttons. -->
    <StackPanel Orientation="Horizontal" Margin="0,30,0,0">

      <Button Name="BeginButton">Begin</Button>
      <Button Name="PauseButton">Pause</Button>
      <Button Name="ResumeButton">Resume</Button>
      <Button Name="SeekButton">Seek</Button>
      <Button Name="SkipToFillButton">Skip To Fill</Button>
      <Button Name="SetSpeedRatioButton">Triple Speed</Button>
      <Button Name="StopButton">Stop</Button>

      <StackPanel.Triggers>
        
        <!-- Begin the Storyboard -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="BeginButton">
          <BeginStoryboard Name="MyBeginStoryboard">
            <Storyboard >
              <DoubleAnimation 
                Storyboard.TargetName="myRectangle" 
                Storyboard.TargetProperty="Width" 
                Duration="0:0:5" From="100" To="500" />
            </Storyboard>
          </BeginStoryboard>
        </EventTrigger>

        <!-- Pause the Storyboard -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="PauseButton">
          <PauseStoryboard BeginStoryboardName="MyBeginStoryboard" />
        </EventTrigger>

        <!-- Resume the Storyboard -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="ResumeButton">
          <ResumeStoryboard BeginStoryboardName="MyBeginStoryboard" />
        </EventTrigger>
 
         <!-- Seek one second into the storyboard's active period. -->
         <EventTrigger RoutedEvent="Button.Click" SourceName="SeekButton">
           <SeekStoryboard 
            BeginStoryboardName="MyBeginStoryboard" 
            Offset="0:0:1" Origin="BeginTime" />
        </EventTrigger>   

        <!-- Skip to Fill -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="SkipToFillButton">
          <SkipStoryboardToFill BeginStoryboardName="MyBeginStoryboard" />
        </EventTrigger>

        <!-- Stop the Storyboard -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="StopButton">
          <StopStoryboard BeginStoryboardName="MyBeginStoryboard" />
        </EventTrigger>
        
        <!-- Triple the speed of the Storyboard -->
        <EventTrigger RoutedEvent="Button.Click" SourceName="SetSpeedRatioButton">
          <SetStoryboardSpeedRatio SpeedRatio="3" BeginStoryboardName="MyBeginStoryboard" />
        </EventTrigger>
      </StackPanel.Triggers>
    </StackPanel>
  </StackPanel>
</Page>

有关其他示例,请参阅 动画示例库

请参阅