将事件从UserControl传递到父窗体

public partial class MyUserControl : UserControl
{
    public delegate void MyEventHandler(object sender, EventArgs e);
    public event MyEventHandler MyEvent;

    public MyUserControl()
    {
        InitializeComponent();
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        // 触发MyEvent事件
        MyEvent?.Invoke(this, EventArgs.Empty);
    }
}

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        // 创建MyUserControl实例
        MyUserControl myUserControl = new MyUserControl();

        // 订阅MyEvent事件
        myUserControl.MyEvent += MyUserControl_MyEvent;

        // 将MyUserControl添加到父窗体
        // ...
    }

    private void MyUserControl_MyEvent(object sender, EventArgs e)
    {
        // 处理MyEvent事件
        // ...
    }
}