动态禁用特定上下文菜单项 [英] Dynamically Disable Particular Context Menu Item

问题描述

我在上下文菜单中添加了4个菜单.如果在开始上下文菜单项中单击，如何禁用特定的(开始")菜单项?

I've added 4 menus in context menu. If during the start context menu item is clicked, how to disable that particular ("Start") menu item?

ContextMenu conMenu1 = new ContextMenu();
public Form1()
{
            InitializeComponent();
    conMenu1.MenuItems.Add("Start", new System.EventHandler(this.Start_Click));
    conMenu1.MenuItems.Add("Pause", new System.EventHandler(this.Pause_Click));
    conMenu1.MenuItems.Add("Resume", new System.EventHandler(this.Resume_Click));
    conMenu1.MenuItems.Add("Stop", new System.EventHandler(this.Stop_Click));
}

private void Start_Click(object sender, EventArgs e)
{
    // Functionalities to disable start context menu item
}

推荐答案

您可以这样做.处理ContextMenu.Opening事件

You can do like this. Handle the ContextMenu.Opening Event

private void conMenu1_Opening(object sender, CancelEventArgs e)
{
    conMenu1.Items[0].Enabled= false;
}

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