如何在运行时在winform上移动标签

Question

使用这个事件标签就消失了,我怎么做这个？

    private void label4_MouseMove(object sender, MouseEventArgs e)
    {
        label4.Location = new Point(Cursor.Position.X, Cursor.Position.Y);
    }

Answer 1

handle these three event ...
Control actcontrol;
 Point   preloc;
 void label1_Mousedown(object sender, MouseEventArgs e)
        {

            actcontrol = sender as Control;
            preloc = e.Location;
            Cursor = Cursors.Default;


        }
        void label1_MouseMove(object sender, MouseEventArgs e)
        {
            if (actcontrol == null || actcontrol != sender)
                return;
            var location = actcontrol.Location;
            location.Offset(e.Location.X - preloc.X, e.Location.Y - preloc.Y);            
            actcontrol.Location = location;

        }
        void label1_MouseUp(object sender, MouseEventArgs e)
        {
            actcontrol = null;
            Cursor = Cursors.Default;

        }