如何識別從已列入模板爲單選按鈕

Question

這對於Windows Phone 7的應用程序中，在這裏一個按鈕的click事件的單選按鈕是我使用的模板代碼：

<Style x:Key="RadioButtonStyle1" BasedOn="{StaticResource PhoneRadioButtonCheckBoxBase}" TargetType="RadioButton"> 
     <Setter Property="Template"> 
      <Setter.Value> 
       <ControlTemplate TargetType="RadioButton"> 
        <Grid Background="Transparent"> 
         <VisualStateManager.VisualStateGroups> 
          <VisualStateGroup x:Name="CommonStates"> 
           <VisualState x:Name="Normal"/> 
           <VisualState x:Name="MouseOver"/> 
           <VisualState x:Name="Pressed"> 
            <Storyboard> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="EnabledCheckBackground"> 
              <DiscreteObjectKeyFrame KeyTime="0"> 
               <DiscreteObjectKeyFrame.Value> 
                <Visibility>Collapsed</Visibility> 
               </DiscreteObjectKeyFrame.Value> 
              </DiscreteObjectKeyFrame> 
             </ObjectAnimationUsingKeyFrames> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="PressedDarkCheckBackground"> 
              <DiscreteObjectKeyFrame KeyTime="0"> 
               <DiscreteObjectKeyFrame.Value> 
                <Visibility>Visible</Visibility> 
               </DiscreteObjectKeyFrame.Value> 
              </DiscreteObjectKeyFrame> 
             </ObjectAnimationUsingKeyFrames> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="PressedLightCheckBackground"> 
              <DiscreteObjectKeyFrame KeyTime="0"> 
               <DiscreteObjectKeyFrame.Value> 
                <Visibility>Visible</Visibility> 
               </DiscreteObjectKeyFrame.Value> 
              </DiscreteObjectKeyFrame> 
             </ObjectAnimationUsingKeyFrames> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="CheckMark"> 
              <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneRadioCheckBoxCheckBrush}"/> 
             </ObjectAnimationUsingKeyFrames> 
            </Storyboard> 
           </VisualState> 
           <VisualState x:Name="Disabled"> 
            <Storyboard> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="EnabledCheckBackground"> 
              <DiscreteObjectKeyFrame KeyTime="0"> 
               <DiscreteObjectKeyFrame.Value> 
                <Visibility>Collapsed</Visibility> 
               </DiscreteObjectKeyFrame.Value> 
              </DiscreteObjectKeyFrame> 
             </ObjectAnimationUsingKeyFrames> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DisabledDarkCheckBackground"> 
              <DiscreteObjectKeyFrame KeyTime="0"> 
               <DiscreteObjectKeyFrame.Value> 
                <Visibility>Visible</Visibility> 
               </DiscreteObjectKeyFrame.Value> 
              </DiscreteObjectKeyFrame> 
             </ObjectAnimationUsingKeyFrames> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DisabledLightCheckBackground"> 
              <DiscreteObjectKeyFrame KeyTime="0"> 
               <DiscreteObjectKeyFrame.Value> 
                <Visibility>Visible</Visibility> 
               </DiscreteObjectKeyFrame.Value> 
              </DiscreteObjectKeyFrame> 
             </ObjectAnimationUsingKeyFrames> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="CheckMark"> 
              <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneRadioCheckBoxCheckDisabledBrush}"/> 
             </ObjectAnimationUsingKeyFrames> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentContainer"> 
              <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PhoneDisabledBrush}"/> 
             </ObjectAnimationUsingKeyFrames> 
            </Storyboard> 
           </VisualState> 
          </VisualStateGroup> 
          <VisualStateGroup x:Name="CheckStates"> 
           <VisualState x:Name="Checked"> 
            <Storyboard> 
             <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="CheckMark"> 
              <DiscreteObjectKeyFrame KeyTime="0"> 
               <DiscreteObjectKeyFrame.Value> 
                <Visibility>Visible</Visibility> 
               </DiscreteObjectKeyFrame.Value> 
              </DiscreteObjectKeyFrame> 
             </ObjectAnimationUsingKeyFrames> 
            </Storyboard> 
           </VisualState> 
           <VisualState x:Name="Unchecked"/> 
           <VisualState x:Name="Indeterminate"/> 
          </VisualStateGroup> 
         </VisualStateManager.VisualStateGroups> 
         <Grid Margin="{StaticResource PhoneTouchTargetLargeOverhang}"> 
          <Grid.ColumnDefinitions> 
           <ColumnDefinition Width="32"/> 
           <ColumnDefinition Width="*"/> 
          </Grid.ColumnDefinitions> 
          <Ellipse x:Name="EnabledCheckBackground" Fill="{TemplateBinding Background}" HorizontalAlignment="Left" Height="32" IsHitTestVisible="False" VerticalAlignment="Center" Width="32"/> 
          <Canvas HorizontalAlignment="Left" Height="32" IsHitTestVisible="False" Opacity="{StaticResource PhoneDarkThemeOpacity}" VerticalAlignment="Center" Width="32"> 
           <Ellipse x:Name="PressedDarkCheckBackground" Fill="{StaticResource PhoneRadioCheckBoxPressedBrush}" Height="32" Visibility="Collapsed" Width="32"/> 
           <Ellipse x:Name="DisabledDarkCheckBackground" Fill="{StaticResource PhoneRadioCheckBoxDisabledBrush}" Height="32" Visibility="Collapsed" Width="32"/> 
          </Canvas> 
          <Canvas HorizontalAlignment="Left" Height="32" IsHitTestVisible="False" Opacity="{StaticResource PhoneLightThemeOpacity}" VerticalAlignment="Center" Width="32"> 
           <Ellipse x:Name="PressedLightCheckBackground" Fill="{StaticResource PhoneRadioCheckBoxPressedBrush}" Height="32" Stroke="{StaticResource PhoneForegroundBrush}" StrokeThickness="{StaticResource PhoneStrokeThickness}" Visibility="Collapsed" Width="32"/> 
           <Ellipse x:Name="DisabledLightCheckBackground" Fill="{StaticResource PhoneRadioCheckBoxDisabledBrush}" Height="32" Stroke="{StaticResource PhoneDisabledBrush}" StrokeThickness="{StaticResource PhoneStrokeThickness}" Visibility="Collapsed" Width="32"/> 
          </Canvas> 
          <Ellipse x:Name="CheckMark" Fill="{StaticResource PhoneRadioCheckBoxCheckBrush}" HorizontalAlignment="Center" Height="16" IsHitTestVisible="False" Visibility="Collapsed" VerticalAlignment="Center" Width="16"/> 
          <ContentControl x:Name="ContentContainer" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" Grid.Column="1" Foreground="{TemplateBinding Foreground}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="12,0,146,-2" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/> 
         </Grid> 
         <Button Content="Play" Margin="0,0,2,-1" HorizontalAlignment="Right" Width="159" Click="PlayButton_Click"/> 
        </Grid> 
       </ControlTemplate> 
      </Setter.Value> 
     </Setter> 
    </Style> 

我想創建一個點擊事件，每個按鈕將使用，但從該事件處理程序中，我需要能夠識別包含被單擊按鈕的單選按鈕。

Answer 1

可能有「更好」的方式來實現你想要做什麼，但你可以施放sender，傳遞給Click事件處理程序，爲FrameworkElement，然後您可以訪問它的DataContext，你可以再適當地轉換以獲取您需要的關於該物品的任何信息。