各位大侠,帮小弟解决一个问题........(在线等待)
下面为一段按钮移动的程序,但是有点问题. 希望大家给个帮助.1. 我怎么样才能够将所有的控件都能移动呢.
因为我的下面程序只能移动最后一个点出来的控件.
Button a = new Button();
private Point downPoint;
private Rectangle downRectangle;
private Rectangle lastRectangle;
int buttonindex = 0;
private void button1_Click(object sender, EventArgs e)
{
Button b = new Button();
b.Parent = this;
b.Text = "button" + buttonindex;
buttonindex++;
panel1.Controls.Add(b);
b.MouseDown += new MouseEventHandler(b_MouseDown);
b.MouseMove += new MouseEventHandler(b_MouseMove);
b.MouseUp += new MouseEventHandler(b_MouseUp);
a = b;
}
private void b_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left) return;
downPoint = e.Location;
lastRectangle =
new Rectangle(0, 0, a.Width, a.Height);
downRectangle.Offset(((Control)sender).PointToScreen(new Point(0, 0)));
ControlPaint.DrawReversibleFrame(
downRectangle, Color.White, FrameStyle.Thick);
lastRectangle = downRectangle;
}
private void b_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left) return;
ControlPaint.DrawReversibleFrame(
downRectangle, Color.White, FrameStyle.Thick);
Rectangle rectangle = downRectangle;
rectangle.Offset(e.X - downPoint.X, e.Y - downPoint.Y);
ControlPaint.DrawReversibleFrame(
rectangle, Color.White, FrameStyle.Thick);
lastRectangle = rectangle;
}
private void b_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left) return;
ControlPaint.DrawReversibleFrame(
lastRectangle, Color.White, FrameStyle.Thick);
a.Location = new Point(
((Control)sender).Location.X + e.X - downPoint.X,
((Control)sender).Location.Y + e.Y - downPoint.Y);
} --------------------编程问答-------------------- 大家帮顶一下的啦./
补充：.NET技术 , C#
