关于C#移动动态添加的控件的问题。

[snow6617]

我做了一个画图工具，单击button后，再单击作图区的panel控件，即完成在panel上添加一个label，label上显示的图案是对应按钮的图案。现想要完成鼠标左键在添加的label控件上方按住不放的时候，显示一个和该label同样大小的虚线框，同时隐藏掉label，拖动的时候依然持续显示该虚线框，拖动带对应的位置，松开鼠标左键后，虚线框消失，之前隐藏的label控件在当前鼠标的位置处再次显示出来。

请教各位大侠，该如何排列鼠标事件，请给个方案，谢谢。。。

[compleat]

帮顶。JF

[dyshadow]

public partial class Form1 : Form
    {
        Point offSet = new Point();
        Rectangle labelFrame;
        Point mousePos = new Point();
        public Form1()
        {
            InitializeComponent();
        }

        private void lblLabelToMove_MouseDown(object sender, MouseEventArgs e)
        {
            offSet = new Point(e.X, e.Y);
            lblLabelToMove.Visible = false;
            labelFrame = new Rectangle(lblLabelToMove.Location, lblLabelToMove.Size);
        }

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            if (lblLabelToMove.Visible)
                return;
            Pen penDrawer = new Pen(Color.Black);
            penDrawer.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
            penDrawer.DashCap = System.Drawing.Drawing2D.DashCap.Flat;

            Rectangle rectToDraw = new Rectangle(mousePos.X - offSet.X, mousePos.Y - offSet.Y, labelFrame.Width, labelFrame.Height);

            e.Graphics.DrawRectangle(penDrawer, rectToDraw);

        }

        private void Form1_MouseMove(object sender, MouseEventArgs e)
        {
            mousePos = e.Location;
            this.Invalidate();
            
        }

        private void Form1_MouseUp(object sender, MouseEventArgs e)
        {
            lblLabelToMove.Location = new Point(mousePos.X - offSet.X, mousePos.Y - offSet.Y);
            lblLabelToMove.Visible = true;
            
        }
        
    }

做的不是很好，不过应该可以作为参考了。