我如何检测，哪一个鼠标按键已经双击了形式，即左，右或中间？

How can I detect, which mouse button have double clicked the form i.e. Left, Right or Middle?

更新： 我使用的.NET2.0

Updated: I am using .NET2.0

推荐答案

存放在的MouseUp 事件最后点击的按钮，然后检查，在双击事件。样品code：

Store the last clicked button in MouseUp event and then check that in the double click event. Sample code:

MouseButtons _lastButtonUp = MouseButtons.None;

private void Form1_MouseUp(object sender, MouseEventArgs e)
{
    _lastButtonUp = e.Button;
}

private void Form1_DoubleClick(object sender, EventArgs e)
{
    switch (_lastButtonUp)
    {
        case System.Windows.Forms.MouseButtons.Left:
            MessageBox.Show("left double click");
            break;
        case System.Windows.Forms.MouseButtons.Right:
            MessageBox.Show("right double click");
            break;
        case System.Windows.Forms.MouseButtons.Middle:
            MessageBox.Show("middle double click");
            break;
    }

}