C# 是否有办法将单选按钮的选中事件绑定到ViewModel中的命令？

我试过了

<RadioButton Content="Boom" Command={Binding MyCommand} IsEnabled="{Binding IsChecked, Converter={StaticResource InverseBooleanConverter}, RelativeSource={RelativeSource Mode=Self}}"/>

---

但什么也没发生。这是为什么？如何修复它？

以下代码按预期工作：

<RadioButton Content="Boom" Command="{Binding MyCommand}" />

命令方法示例：

    private ICommand _MyCommand;
    public ICommand MyCommand
    {
        get { return _MyCommand ?? (_MyCommand = new DelegateCommand(a => MyCommandMethod(a))); }
    }

    private void MyCommandMethod(object item)
    {
        Console.WriteLine("Chosen element: " + (string)item);
    }

---

步骤1：添加

System.Windows.Interactivity

reference

步骤2：在XAML

xmlns:i=”中添加名称空间http://schemas.microsoft.com/expression/2010/interactivity“

步骤3：

<RadioButton Content="Boom" IsEnabled="{Binding IsChecked, Converter={StaticResource InverseBooleanConverter}, RelativeSource={RelativeSource Mode=Self}}">
 <i:Interaction.Triggers>
        <i:EventTrigger EventName="Checked">
            <i:InvokeCommandAction Command="{Binding MyCommand}" />
        </i:EventTrigger>
    </i:Interaction.Triggers>
</RadioButton>

<RadioButton Content="Boom" IsEnabled="{Binding IsChecked, Converter={StaticResource InverseBooleanConverter}, RelativeSource={RelativeSource Mode=Self}}">
 <i:Interaction.Triggers>
        <i:EventTrigger EventName="Checked">
            <i:InvokeCommandAction Command="{Binding MyCommand}" />
        </i:EventTrigger>
    </i:Interaction.Triggers>
</RadioButton>