我正在尝试制作一个动画的路径，该路径看起来似乎是无限的。 路径绘制在按钮的顶部，但是问题在于，当路径移动时，您看不到所有路径，只是在按钮的宽度处切开了。 这里要演示的是图片：

故事板：

   <Storyboard x:Key="StoryboardPath" RepeatBehavior="Forever">
      <DoubleAnimationUsingPath Duration="0:0:0:1" 
                              Source="X" 
                              Storyboard.TargetProperty="(TranslateTransform.X)" 
                              Storyboard.TargetName="pathTranslateTranform">
         <DoubleAnimationUsingPath.PathGeometry>
            <PathGeometry Figures="M-120,0 L0,0"/>
         </DoubleAnimationUsingPath.PathGeometry>
      </DoubleAnimationUsingPath>
   </Storyboard>

按钮的数据模板：

   <DataTemplate DataType="{x:Type controls:Button}">
      <Grid ClipToBounds="True">
         <Button Content="Test Button"/>
         <Path x:Name="busyIndicator"
               Fill="Brown">
            <Path.RenderTransform>
               <TransformGroup>
                  <TranslateTransform x:Name="pathTranslateTranform"/>
               </TransformGroup>
            </Path.RenderTransform>
            <Path.Data>
               M 0 0   l 20 0   l 80 100   l -20 0 z
               M 40 0  l 20 0   l 80 100   l -20 0 z
               M 80 0  l 20 0   l 80 100   l -20 0 z
               M 120 0 l 20 0   l 80 100   l -20 0 z
               M 160 0 l 20 0   l 80 100   l -20 0 z
               M 200 0 l 20 0   l 80 100   l -20 0 z
               M 240 0 l 20 0   l 80 100   l -20 0 z
               M 280 0 l 20 0   l 80 100   l -20 0 z
               M 320 0 l 20 0   l 80 100   l -20 0 z
               M 360 0 l 20 0   l 80 100   l -20 0 z
               M 400 0 l 20 0   l 80 100   l -20 0 z
            </Path.Data>
         </Path>
      </Grid>

      <DataTemplate.Triggers>
         <DataTrigger Binding="{Binding IsBusy.Value}" Value="False">
            <DataTrigger.Enteractions>
               <BeginStoryboard>
                  <Storyboard>
                     <StaticResource ResourceKey="StoryboardPath"/>
                  </Storyboard>
               </BeginStoryboard>
            </DataTrigger.Enteractions>
         </DataTrigger>
      </DataTemplate.Triggers>
   </DataTemplate>