4.Winform实现控件拖动

*记得更改下方Panel的属性

    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }
        Button btn = null;
        private void button1_MouseDown(object sender, MouseEventArgs e)
        {

        }

        private void panel2_DragEnter(object sender, DragEventArgs e)
        {

            if (e.Data.GetDataPresent(typeof(Button)))
            {
                e.Effect = DragDropEffects.Move;
            }
            (sender as Panel).BackgroundImage = Properties.Resources._1;
        }

        private void panel2_DragDrop(object sender, DragEventArgs e)
        {

            int x = (sender as Panel).Location.X + 2;
            int y = (sender as Panel).Location.Y + 2;

            btn = e.Data.GetData(typeof(Button)) as Button;

            // btn.Location = this.PointToClient(new Point(e.X - btn.Width / 2, e.Y - btn.Height / 2));
            //btn.Location = this.PointToClient(new Point(x, y));
            btn.Location = new Point(x, y);
            //MessageBox.Show(x.ToString()+":"+y.ToString()+"");
            (sender as Panel).BackgroundImage = null;
        }

        private void panel2_DragLeave(object sender, EventArgs e)
        {
            (sender as Panel).BackgroundImage = null;
        }


        private void panel2_MouseEnter(object sender, EventArgs e)
        {
            (sender as Panel).BackgroundImage = Properties.Resources._1;
        }

        private void panel2_MouseLeave(object sender, EventArgs e)
        {
            (sender as Panel).BackgroundImage = null;
        }

        private void Form2_Load(object sender, EventArgs e)
        {

        }


        private void button1_MouseMove(object sender, MouseEventArgs e)
        {

            if (e.Button == System.Windows.Forms.MouseButtons.Left)
            {
                (sender as Button).DoDragDrop(sender as Button, DragDropEffects.Move);
            }
        }

        private void button5_Click_1(object sender, EventArgs e)
        {
            MessageBox.Show((sender as Button).Text);

        }




        private void panel10_DragEnter(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(typeof(Button)))
            {
                e.Effect = DragDropEffects.Move;
            }
            (sender as Panel).BackgroundImage = Properties.Resources._3;
        }
        private Button btn2 = null;
        private void panel10_DragDrop(object sender, DragEventArgs e)
        {

            int x = (sender as Panel).Location.X + 2;
            int y = (sender as Panel).Location.Y + 2;

            btn2 = e.Data.GetData(typeof(Button)) as Button;
            btn2.Location = new Point(x, y);
            (sender as Panel).BackgroundImage = null;
        }

        private void panel10_DragLeave(object sender, EventArgs e)
        {
            (sender as Panel).BackgroundImage = null;
        }

        private void panel10_MouseEnter(object sender, EventArgs e)
        {
            (sender as Panel).BackgroundImage = Properties.Resources._4;
        }

        private void panel10_MouseLeave(object sender, EventArgs e)
        {

            (sender as Panel).BackgroundImage = null;
        }

        private void btnkuGou_Click(object sender, EventArgs e)
        {

            Process p = new Process();
            p.StartInfo.FileName = @"D:\Program Files\KuGou\KGMusic\KuGou.exe";
            p.Start();

        }

        //private void button6_Click(object sender, EventArgs e)
        //{
        //    //D:\Program Files\KuGou\KGMusic
        //    Process p = new Process();
        //    p.StartInfo.FileName = @"D:\Program Files\KuGou\KGMusic\KuGou.exe";
        //    p.Start();
        //}
    }