c# - 上下文菜单项的点击不触发

Question

我试图在用户单击上下文菜单中的 MenuItem 时显示消息框警报。这是上下文菜单代码:

    public Form1()
    {
        MenuItem mni = new MenuItem();
        mni.Text = "BackLog Task";
        mni.MenuItems.Add("Backlog Task (1)");
        mni.Click += new EventHandler(this.mni_Click);

        contextMenu1.MenuItems.Add(mni);

        notifyIcon1.Visible = true;
        notifyIcon1.Icon = new System.Drawing.Icon
           (System.Environment.GetFolderPath
           (System.Environment.SpecialFolder.Personal)
           + @"\icon.ico");
        notifyIcon1.Text = "Right-click me!";
        notifyIcon1.ContextMenu = contextMenu1;

        InitializeComponent();
    }

点击事件处理程序如下:

    void mni_Click(object sender, EventArgs e)
    {
        MessageBox.Show("Back Log Event Handler");
    }

但是点击事件永远不会被触发。有没有人知道可能出了什么问题？？

Answer 1

您的 MenuItem 有您添加的后代:

mni.MenuItems.Add("Backlog Task (1)");

如果你勾选the documentation for the Click event它明确指出(粗体是我的):

If the MenuItems property for the MenuItem contains any items, this event is not raised. This event is not raised for parent menu items.