直接用窗體的click和doubleclick事件相應(yīng)函數(shù)是沒辦法區(qū)分的，因為click在doubleclick前面被觸發(fā)。

辦法一：

在mousedown事件中處理，通過timer計算兩次單擊時間差。

private bool isFirstClick = true;private bool isDoubleClick = false;private int milliseconds = 0;private Rectangle hitTestRectangle = new Rectangle();private Rectangle doubleClickRectangle = new Rectangle(); // Detect a valid single click or double click.private void Form1_MouseDown(object sender, MouseEventArgs e){// Verify that the mouse click is in the main hit// test rectangle.//if (!hitTestRectangle.Contains(e.Location)){// return;}// This is the first mouse click.if (isFirstClick){isFirstClick = false;// Determine the location and size of the double click // rectangle area to draw around the cursor point.doubleClickRectangle = new Rectangle(e.X - (SystemInformation.DoubleClickSize.Width / 2),e.Y - (SystemInformation.DoubleClickSize.Height / 2),SystemInformation.DoubleClickSize.Width,SystemInformation.DoubleClickSize.Height);Invalidate();// Start the double click timer.timer1.Start();}// This is the second mouse click.else{// Verify that the mouse click is within the double click// rectangle and is within the system-defined double // click period.if (doubleClickRectangle.Contains(e.Location) &&milliseconds < SystemInformation.DoubleClickTime){isDoubleClick = true;}}}

timer相應(yīng)函數(shù)：

private void timer1_Tick(object sender, EventArgs e) //計算間隔時間{milliseconds += 100; // The timer has reached the double click time limit.if (milliseconds >= SystemInformation.DoubleClickTime){timer1.Stop();if (isDoubleClick){//textBox1.AppendText("Perform double click action");//textBox1.AppendText(Environment.NewLine);MessageBox.Show("double click action ", "message:", MessageBoxButtons.OK);}else{//textBox1.AppendText("Perform single click action");//textBox1.AppendText(Environment.NewLine);MessageBox.Show( "single click action ", "message:",MessageBoxButtons.OK);}// Allow the MouseDown event handler to process clicks again.isFirstClick = true;isDoubleClick = false;milliseconds = 0;}}

參考：http://msdn.microsoft.com/zh-cn/library/ms171543%28VS.80%29.aspx



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