将多个元素放置到WPF中的GroupBox中

Question

我正在尝试制作一个带有几个(无线电)按钮的GroupBox.但在样本中,我正在使用复选框.

<GroupBox Header="Aðgerðir" HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="270,0,0,178" Height="106" Width="176">
    <CheckBox Content="CheckBox" HorizontalAlignment="Left" VerticalAlignment="Top"/>
    <CheckBox Content="CheckBox" HorizontalAlignment="Left" VerticalAlignment="Bottom"/>
</GroupBox>

以上不起作用,视觉工作室说"无效标记".

这在这里工作正常

<GroupBox Header="Aðgerðir" HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="270,0,0,178" Height="106" Width="176">
    <CheckBox Content="CheckBox" HorizontalAlignment="Left" VerticalAlignment="Top"/>
</GroupBox>

我不明白.如果我运行调试器,它说"内容只能设置一次",但删除复选框的内容部分似乎没有任何效果.

Answer 1

GroupBox的内容只能设置一次,这意味着它内部只能有一个控件.如果您想要两个单选按钮,请将它们放在堆栈面板或网格中.

GroupBox概述

<GroupBox Header="Aðgerðir" HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="270,0,0,178" Height="106" Width="176">
    <StackPanel>
        <CheckBox Content="CheckBox" HorizontalAlignment="Left" VerticalAlignment="Top"/>
        <CheckBox Content="CheckBox" HorizontalAlignment="Left" VerticalAlignment="Bottom"/>
    </StackPanel>    
</GroupBox>