Question

c#做了一个系统，点击按钮弹出对话框，让鼠标在标题栏点击可任意移动对话框，对话框用panel做的怎样实现急

Answer 1

private void panel1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button.ToString().Equals("Left"))
panel1.Location = e.Location;
}

追问

谢谢移动是可以，但是怎么有层叠啊

追答

那不是层叠，是闪烁，改进一下坐标的计算方式就行了，如下：
int pLeft = 0;
int pTop = 0;
private void panel1_MouseDown(object sender, MouseEventArgs e)
{
pLeft = e.X;
pTop = e.Y;
}
private void panel1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button.ToString().Equals("Left"))
{
panel1.Left = panel1.Location.X + e.X - pLeft;
panel1.Top = panel1.Location.Y + e.Y - pTop;
}
}