从c#隐藏代码更改按钮的内容

我的问题是关于wp7的。我试图在用户单击按钮后，更改c#behind代码中按钮的内容。特别是，我想更改位于网格（“GraphGrid”）内的三个路径元素的Fill属性。此网格是按钮本身的内容。 以下是关于按钮的XAML代码：

<Button.Content>
  <Grid x:Name="GraphGrid" Width="Auto" Height="Auto" HorizontalAlignment="Stretch" 
   VerticalAlignment="Stretch">
   <Path x:Name="Path"
      Data="M 0,0 0,80 20,80 20,0Z"
  Stroke="Black"
  Fill="Black"
  StrokeThickness="0"/>
<Path
  Data="M 25,20 25,80 45,80 45,20Z"
  Stroke="Black"
  Fill="Black"
  StrokeThickness="0"/>
<Path
  Data="M 50,40 50,80 70,80 70,40Z"
  Stroke="Black"
  Fill="Black"
  StrokeThickness="0"/>                         

我尝试使用键（如x:Name…）在c#behind代码中引用我的Xaml元素，但它不起作用

   <Grid>
    <Button Click="Button_Click">
    <Button.Content>
        <Grid x:Name="GraphGrid" Width="Auto" Height="Auto" HorizontalAlignment="Stretch" 
VerticalAlignment="Stretch">
            <Path x:Name="Path"
      Data="M 0,0 0,80 20,80 20,0Z"
  Stroke="Black"
  Fill="Black"
  StrokeThickness="0"/>
            <Path x:Name="path1"
     Data="M 25,20 25,80 45,80 45,20Z"
     Stroke="Black"
     Fill="Black"
     StrokeThickness="0"/>
            <Path x:Name="Path2"
     Data="M 50,40 50,80 70,80 70,40Z"
     Stroke="Black"
     Fill="Black"
     StrokeThickness="0"/>
        </Grid>
    </Button.Content>
    </Button>
</Grid>

---

我希望这会有所帮助。

以下是一种在XAML中实现此功能而不需要任何代码隐藏的方法：

<Button>
        <Button.Content>
            <Grid x:Name="GraphGrid" Width="Auto" Height="Auto" HorizontalAlignment="Stretch" 
    VerticalAlignment="Stretch">
                <Path x:Name="Path"
          Data="M 0,0 0,80 20,80 20,0Z"
      Stroke="Black"
      Fill="Black"
      StrokeThickness="0"/>
                    <Path  x:Name="Path2"
         Data="M 25,20 25,80 45,80 45,20Z"
         Stroke="Black"
         Fill="Black"
         StrokeThickness="0"/>
                    <Path  x:Name="Path3"
         Data="M 50,40 50,80 70,80 70,40Z"
         Stroke="Black"
         Fill="Black"
         StrokeThickness="0"/>
            </Grid>
        </Button.Content>
        <Button.Triggers>
            <EventTrigger RoutedEvent="PreviewMouseDown">
                <BeginStoryboard>
                    <Storyboard >
                        <ColorAnimation Storyboard.TargetName="Path" Storyboard.TargetProperty="Fill.Color" From="Black" To="Red"></ColorAnimation>
                        <ColorAnimation Storyboard.TargetName="Path2" Storyboard.TargetProperty="Fill.Color" From="Black" To="Yellow"></ColorAnimation>
                        <ColorAnimation Storyboard.TargetName="Path3" Storyboard.TargetProperty="Fill.Color" From="Black" To="Blue"></ColorAnimation>
                    </Storyboard>

                </BeginStoryboard>
            </EventTrigger>

        </Button.Triggers>
        </Button>

@ViralShah Spam，链接将我重定向到：

<Button>
        <Button.Content>
            <Grid x:Name="GraphGrid" Width="Auto" Height="Auto" HorizontalAlignment="Stretch" 
    VerticalAlignment="Stretch">
                <Path x:Name="Path"
          Data="M 0,0 0,80 20,80 20,0Z"
      Stroke="Black"
      Fill="Black"
      StrokeThickness="0"/>
                    <Path  x:Name="Path2"
         Data="M 25,20 25,80 45,80 45,20Z"
         Stroke="Black"
         Fill="Black"
         StrokeThickness="0"/>
                    <Path  x:Name="Path3"
         Data="M 50,40 50,80 70,80 70,40Z"
         Stroke="Black"
         Fill="Black"
         StrokeThickness="0"/>
            </Grid>
        </Button.Content>
        <Button.Triggers>
            <EventTrigger RoutedEvent="PreviewMouseDown">
                <BeginStoryboard>
                    <Storyboard >
                        <ColorAnimation Storyboard.TargetName="Path" Storyboard.TargetProperty="Fill.Color" From="Black" To="Red"></ColorAnimation>
                        <ColorAnimation Storyboard.TargetName="Path2" Storyboard.TargetProperty="Fill.Color" From="Black" To="Yellow"></ColorAnimation>
                        <ColorAnimation Storyboard.TargetName="Path3" Storyboard.TargetProperty="Fill.Color" From="Black" To="Blue"></ColorAnimation>
                    </Storyboard>

                </BeginStoryboard>
            </EventTrigger>

        </Button.Triggers>
        </Button>