面板和GroupBox之间的拖放问题

Question

所以我有一个Panel和一个GroupBox。我对其进行了编码，以便可以将图片从Panel拖到GroupBox并放在此处。问题是我只能在GroupBox中添加1张图片，我想添加任意数量的图片，并且在将图片放置在GroupBox中时还要调整图片的大小，以使其小于实际尺寸。在Panel中。

Private Sub Panel1_MouseDown(sender As Object, e As MouseEventArgs) Handles Panel1.MouseDown
    Panel1.DoDragDrop(Panel1.BackgroundImage, DragDropEffects.Copy)
End Sub

Private Sub view1_DragEnter(sender As Object, e As DragEventArgs) Handles view1.DragEnter
    If (e.Data.GetDataPresent(DataFormats.Bitmap)) Then
        e.Effect = DragDropEffects.Copy
    End If
End Sub

Private Sub view1_DragDrop(sender As Object, e As DragEventArgs) Handles view1.DragDrop
    Dim bm As Bitmap = DirectCast(e.Data.GetData(DataFormats.Bitmap), Bitmap)

    view1.BackgroundImage = bm
End Sub