为了演示，将两个面板放在一个窗体上的一个窗体和一个按钮上：

public Form1() { InitializeComponent(); panel1.AllowDrop = true; panel2.AllowDrop = true; panel1.DragEnter += panel_DragEnter; panel2.DragEnter += panel_DragEnter; panel1.DragDrop += panel_DragDrop; panel2.DragDrop += panel_DragDrop; button1.MouseDown += button1_MouseDown; } void button1_MouseDown(object sender, MouseEventArgs e) { button1.DoDragDrop(button1, DragDropEffects.Move); } void panel_DragEnter(object sender, DragEventArgs e) { e.Effect = DragDropEffects.Move; } void panel_DragDrop(object sender, DragEventArgs e) { ((Button)e.Data.GetData(typeof(Button))).Parent = (Panel)sender; } 

此方法也适用于Group Box，但必须手动添加MouseEnter，MouseLeave和MouseUp事件：

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 public frmMain ( ) { InitializeComponent ( ); pbxMoveIt.BringToFront ( ); gbx1.AllowDrop = true; gbx2.AllowDrop = true; lblStatus.Text = "GUI Status: Started"; gbx1.MouseEnter += gbx_MouseEnter; gbx1.MouseLeave += gbx_MouseLeave; gbx1.MouseUp += gbx_MouseUp; gbx2.MouseEnter += gbx_MouseEnter; gbx2.MouseLeave += gbx_MouseLeave; gbx2.MouseUp += gbx_MouseUp; } private void gbx_MouseEnter ( object sender, EventArgs e ) { // useful code // ... } private void gbx_MouseLeave ( object sender, EventArgs e ) { // useful code // ... } private void gbx_MouseUp ( object sender, EventArgs e ) { // useful code // ... }