当winform窗体的Bordestyle设置为None时，鼠标可以拖动窗体的办法

 1   2015-07-11  16:05:35
 2         bool formMove = false;//窗体是否移动      
 3         Point formPoint;//记录窗体的位置
 4 private void Form1_MouseDown(object sender, MouseEventArgs e)
 5         {
 6             formPoint = new Point();        
 7             int xOffset;          
 8             int yOffset;         
 9             if (e.Button == MouseButtons.Left)       
10             {
11                 xOffset = -e.X;
12                 yOffset = -e.Y;
13                     formPoint = new Point(xOffset, yOffset);
14                     formMove = true;//开始移动  
15             }
16         }
17 
18         private void Form1_MouseMove(object sender, MouseEventArgs e)
19         {
20             if (formMove == true)
21             {
22                 Point mousePos = Control.MousePosition;
23                 mousePos.Offset(formPoint.X, formPoint.Y);
24                 Location = mousePos;
25             }
26         }
27 
28         private void Form1_MouseUp(object sender, MouseEventArgs e)
29         {
30             if (e.Button == MouseButtons.Left)//按下的是鼠标左键     
31             {
32                 formMove = false;//停止移动        
33             }
34         }