按钮内容动态绑定到图像按钮的TextBlock？

Question

我有一个图像按钮，如下一个风格，我怎么能让TextBlock的，其中等于“POSITION”，下同作为按钮的内容的文本？Thanks.`

<Style x:Key="TopButtonStyle" TargetType="Button"> 
     <Setter Property="Padding" Value="0"/> 
     <Setter Property="Button.BorderBrush" Value="SteelBlue" /> 
     <Setter Property="Button.BorderThickness" Value="0" /> 

     <Setter Property="ContentTemplate"> 
      <Setter.Value> 
       <DataTemplate> 
        <Grid Background="SteelBlue"> 
         <Image Source="images/blue_button_up.png" HorizontalAlignment="Center" Margin="0,0,0,0" Height="Auto" Width="Auto" Stretch="UniformToFill"/> 
         <TextBlock Text="POSITION" HorizontalAlignment="Center" Foreground="White" Margin="5,5,0,0"/> 
        </Grid> 
       </DataTemplate> 
      </Setter.Value> 
     </Setter> 
    </Style>` 

Answer 1

{Binding}因为ContentTemplate的DataContext是Content。