Question

winform中如何给button按钮定义一个单击鼠标中键事件

如题，我想给button按钮添加一个单击鼠标中键的事件，该怎么做？还有，我应当如何判断鼠标是否单击了中键？

Answer 1

button派生自control的，而control有一个mousedown事件，可以判断是哪一个键被按下，下面是一段摘抄自MSDN的代码，你可以参考一下 private void panel1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
// Update the mouse path with the mouse information
Point mouseDownLocation = new Point(e.X, e.Y);

string eventString = null;
switch (e.Button) {
case MouseButtons.Left:
eventString = "L";
break;
case MouseButtons.Right:
eventString = "R";
break;
case MouseButtons.Middle:
eventString = "M";
break;
case MouseButtons.XButton1:
eventString = "X1";
break;
case MouseButtons.XButton2:
eventString = "X2";
break;
case MouseButtons.None:
default:
break;
}