怎么实现像QQ聊天窗口的发送按钮下拉菜单？

Question

如图：
请教高手这样的效果怎么样实现的？

Answer 1

        private void button4_Click(object sender, EventArgs e)
        {
           // Point p = new Point(this.button4.Location.X+this.Location .X , this.button4.Location.Y + this.Height+this.Location .Y );
            this.button4.ContextMenuStrip .Show(this.button4 , MousePosition );
        }

Answer 2

        private void button4_Click(object sender, EventArgs e)
        {
           // Point p = new Point(this.button4.Location.X+this.Location .X , this.button4.Location.Y + this.Height+this.Location .Y );
            this.button4.ContextMenuStrip .Show( MousePosition );
        }
先用contextmenustrip控件设计好菜单然后为this.button4.ContextMenuStrip = this.contextMenuStrip1;

Answer 3

this.contextMenuStrip1.Show(this.Left +  e.X,this.Top + e.Y);

Answer 4

要实现有下拉菜单的按扭,就用dotnetbar第三方控件.但是你说的qq的发送按扭,至于显示菜单的位置,自己修改.我的代码,是左键显示,

Answer 5

        private void button4_Click(object sender, EventArgs e)
        {
            this.button4.ContextMenuStrip =null;
            Point p =this.button4 .Parent  .PointToScreen (this.button4 .Location );
            p.Y += this.button4.Height;           
            this.contextMenuStrip1.Show(p);
        }其实,显示菜单this.contextMenuStrip1.Show(p);就可以了,
不要为button设置ContextMenuStrip