DataTemplate 中的单选按钮

Question

我制作了一个会自动生成一些问题的数据模板（从我的数据视图加载）。每个问题都有四个单选按钮，我将所有四个按钮分组到 GroupName 上。

我的问题是 - 如果我有 2 或 3 个问题，每当我选中一个问题的单选按钮时，上面问题的单选按钮将被取消选中。有人对此有解决方案吗？

这是我的 XAML:

<ItemsControl Name="itmCntrl" >
    <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel Orientation="Horizontal" ></WrapPanel>
        </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>
    <ItemsControl.ItemTemplate>
        <DataTemplate>
            <StackPanel Name="stk">
                <StackPanel Margin="5,2,0,0">
                    <WrapPanel Margin="10,10,10,5" Height="Auto">
                        <TextBlock TextWrapping="Wrap" x:Name="tbC"  FontSize="18" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black" Text="Question : "/>
                        <TextBlock TextWrapping="Wrap" Text="{Binding NOIDUNG}" FontSize="18" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black"/>
                    </WrapPanel>
                    <WrapPanel Margin="10,5,10,5" Height="Auto">
                        <RadioButton x:Name="rdoA" GroupName="DA"/>
                        <TextBlock TextWrapping="Wrap" Name="A" Text="{Binding A}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
                        <RadioButton x:Name="rdoB" GroupName="DA" Margin="10,0,0,0"/>
                        <TextBlock TextWrapping="Wrap" Name="B" Text="{Binding B}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Right" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
                    </WrapPanel>
                    <WrapPanel Margin="10,5,10,5" Height="Auto">
                        <RadioButton x:Name="rdoC" GroupName="DA"/>
                        <TextBlock TextWrapping="Wrap" Name="C" Text="{Binding C}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
                        <RadioButton x:Name="rdoD" GroupName="DA" Margin="10,0,0,0"/>
                        <TextBlock TextWrapping="Wrap" Name="D" Text="{Binding D}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Right" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
                    </WrapPanel>
                </StackPanel>
            </StackPanel>
        </DataTemplate>
    </ItemsControl.ItemTemplate>
</ItemsControl>

Answer 1

RadioButton.GroupName Property 是一个 DependencyProperty，这意味着您可以为每个组绑定唯一值：

<DataTemplate>
    <StackPanel Name="stk">
        <StackPanel Margin="5,2,0,0">
            <WrapPanel Margin="10,10,10,5" Height="Auto">
                <TextBlock TextWrapping="Wrap" x:Name="tbC"  FontSize="18" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black" Text="Question : "/>
                <TextBlock TextWrapping="Wrap" Text="{Binding NOIDUNG}" FontSize="18" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black"/>
            </WrapPanel>
            <WrapPanel Margin="10,5,10,5" Height="Auto">
                <RadioButton x:Name="rdoA" GroupName="{Binding GroupName}"/>
                <TextBlock TextWrapping="Wrap" Name="A" Text="{Binding A}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
                <RadioButton x:Name="rdoB" GroupName="{Binding GroupName}" Margin="10,0,0,0"/>
                <TextBlock TextWrapping="Wrap" Name="B" Text="{Binding B}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Right" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
            </WrapPanel>
            <WrapPanel Margin="10,5,10,5" Height="Auto">
                <RadioButton x:Name="rdoC" GroupName="{Binding GroupName}"/>
                <TextBlock TextWrapping="Wrap" Name="C" Text="{Binding C}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
                <RadioButton x:Name="rdoD" GroupName="{Binding GroupName}" Margin="10,0,0,0"/>
                <TextBlock TextWrapping="Wrap" Name="D" Text="{Binding D}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Right" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
            </WrapPanel>
        </StackPanel>
    </StackPanel>
</DataTemplate>

要使此示例正常工作，您只需将 GroupName 属性添加到要在 DataTemplate 中进行数据绑定的视图模型，即。在

中具有 A、B、C 和 D 属性的对象

Answer 2

我找到了另一种方法，因为我将源 Obj 绑定到我的 Itemcontrol，所以我使用这种方法：

<WrapPanel Margin="10,5,10,5" Height="Auto">
<RadioButton x:Name="rdoA" GroupName="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ItemsControl}}, Path=A}"/>
<TextBlock TextWrapping="Wrap" Name="A" Text="{Binding A}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
<RadioButton x:Name="rdoB" Margin="10,0,0,0" GroupName="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ItemsControl}}, Path=B}"/>
<TextBlock TextWrapping="Wrap" Name="B" Text="{Binding B}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Right" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
<TextBlock Text="&#xD;"/>
<RadioButton x:Name="rdoC" GroupName="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ItemsControl}}, Path=C}"/>
<TextBlock TextWrapping="Wrap" Name="C" Text="{Binding C}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Left" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
<RadioButton x:Name="rdoD" GroupName="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ItemsControl}}, Path=D}" Margin="10,0,0,0"/>
<TextBlock TextWrapping="Wrap" Name="D" Text="{Binding D}" FontSize="15" FontFamily="Times New Roman" FontWeight="Bold" HorizontalAlignment="Right" VerticalAlignment="Center" Foreground="Black" Margin="3,0,0,0"/>
</WrapPanel>

这对我有用，但我必须将所有 4 个单选按钮分组到 1 个 WrapPanel 中，因为如果我将它们分成 2 个面板，它们将有自己的组名。但是 1 个 WrapPanel 中的 4 组让它们看起来很糟糕 (1)，因为我想要类似 (2) 的东西，而不是 (1)

(2) （问题）

(甲) (乙)

(C) (D)

不是

(1)

（问题）

(A) (B) (C)

(D)

无论如何，谢谢你的帮助:)

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