问题描述

C# web 鼠标拖拽的问题，运行后，报错，MouseEventArgs下有蓝波浪线，有劳达人帮忙。

private int tmpx = 0;
private int tmpy = 0;
private void panel1_MouseDown(object sender, MouseEventArgs e)
{
      if (e.Button == MouseButtons.Left)
      {
           this.tmpx = e.X;
           this.tmpy = e.Y;
           this.panel1.Cursor = Cursors.SizeAll;
           this.panel1.MouseMove += new
           MouseEventHandler(panel1_MouseMove);
    }
}
private void panel1_MouseUp(object sender, MouseEventArgs e)
{
    this.panel1.Cursor = Cursors.Default;
    this.panel1.MouseMove -= new MouseEventHandler(panel1_MouseMove);
}
void panel1_MouseMove(object sender, MouseEventArgs e)
{
       this.panel1.Location = new Point(this.panel1.Location.X
               + e.X - this.tmpx, this.panel1.Location.Y + e.Y - this.tmpy);
}

解决方案

这些代码不能用于asp.net的panel控件，它们只能用于winforms的控件。要在web程序中处理鼠标，需要用javascript。