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

方法一：

1-07-11 16:05:352 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 }

方法二：

1 Point mouseOff;//鼠标移动位置变量 2 bool leftFlag;//标签是否为左键 3private void Login_MouseDown(object sender, MouseEventArgs e) 4 { 5 if (e.Button == MouseButtons.Left) 6 { 7 mouseOff = new Point(-e.X, -e.Y); //得到变量的值 8 leftFlag = true; //点击左键按下时标注为true; 9 }10 }11 12 private void Login_MouseMove(object sender, MouseEventArgs e)13 {14 if (leftFlag)15 {16 Point mouseSet = Control.MousePosition;17 mouseSet.Offset(mouseOff.X, mouseOff.Y); //设置移动后的位置18 Location = mouseSet;19 }20 }21 22 private void Login_MouseUp(object sender, MouseEventArgs e)23 {24 if (leftFlag)25 {26 leftFlag = false;//释放鼠标后标注为false;27 }28 }