WPF綁定到選定的單選按鈕

Question

我有一個單選按鈕組：

<RadioButton Name="_CreateGraph" GroupName="MapOrGraph" Content="Create Graph" /> 
<RadioButton Name="_CreateMap" GroupName="MapOrGraph" Content="Create Map" /> 

如何綁定標籤到選定的單選按鈕的內容內容？

例如標籤應該說創建圖表或創建地圖取決於哪個單選框被創建？

Answer 1

<Label Content="{Binding SelectedValue.Content, ElementName=list}" /> 

<ListBox x:Name="list" SelectedIndex="1" > 
    <ListBox.ItemContainerStyle> 
     <Style TargetType="ListBoxItem"> 
      <Setter Property="Template"> 
       <Setter.Value> 
        <ControlTemplate TargetType="ListBoxItem" > 
         <RadioButton GroupName="a" Content="{TemplateBinding Content}" IsChecked="{Binding IsSelected, RelativeSource={RelativeSource TemplatedParent} }" /> 
        </ControlTemplate> 
       </Setter.Value> 
      </Setter> 
     </Style> 
    </ListBox.ItemContainerStyle> 
    <ListBoxItem>Create Graph</ListBoxItem> 
    <ListBoxItem>Create Map</ListBoxItem> 
</ListBox> 

我想你可以把它比我做短。

Answer 2

如果你只有兩個單選按鈕，這是一個快速&骯髒的解決方案：

<Label> 
     <Label.Style> 
      <Style TargetType="{x:Type Label}"> 
       <Style.Triggers> 
        <DataTrigger Binding="{Binding IsChecked, ElementName=_CreateGraph}" Value="True"> 
         <Setter Property="Content" Value="{Binding Content, ElementName=_CreateGraph}" /> 
        </DataTrigger> 
        <DataTrigger Binding="{Binding IsChecked, ElementName=_CreateMap}" Value="True"> 
         <Setter Property="Content" Value="{Binding Content, ElementName=_CreateMap}" /> 
        </DataTrigger> 
       </Style.Triggers> 
      </Style> 
     </Label.Style> 
    </Label>