動态生成多級菜單功能

http://topic.csdn.net/u/20101115/08/5b5786b3-856a-48d5-a41b-5b12783c645c.html

轉貼過來：

ToolStripDropDownButton dropBtn = new ToolStripDropDownButton();
            dropBtn.DropDownItems.Add("000");
            dropBtn.DropDownItems.Add("111");

            foreach (ToolStripItem ts in dropBtn.DropDownItems)
            {
                ToolStripMenuItem item = ts as ToolStripMenuItem;
                if (item != null && item.Text == "000")
                {
                    item.DropDownItems.Add("000-1");
                    item.DropDownItems.Add("000-2");
                    item.DropDownItems.Add("000-3");
                    item.DropDownItems.Add("000-4");
                    //more item
                    break;
                }
            }