Drag and drop multiple listbox rows

[MNP]

The example posted here

http://www.telerik.com/community/forums/winforms/ui-controls/drop-and-drag-between-two-listbox.aspx

only allows single listboxitem moves. If I set the mousedown event to be

 Private Sub lstMembers_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles lstMembers.MouseDown
      Dim lstBox As RadListBox = sender
      lstBox.DoDragDrop(lstBox.SelectedItems, DragDropEffects.Move)
   End Sub

The listbox does not select the proper values.

Is there a way you can drag multiple values?

Thanks

-Matt

[Robert]

Matt,

I've take the example and modified it to support multi-drag drop functionality:

        bool isMouseDown = false;
        bool isDragAndDrop = false;
        private void radListBox1_MouseDown(object sender, MouseEventArgs e)
        {
            isMouseDown = true;
        }

        private void radListBox1_MouseMove(object sender, MouseEventArgs e)
        {
            if (!isMouseDown || isDragAndDrop) return;

            RadListBox listBox = sender as RadListBox;
            listBox.DoDragDrop(listBox.SelectedItems.ToList(), DragDropEffects.Copy);

            isDragAndDrop = true;
        }

        private void radListBox1_MouseUp(object sender, MouseEventArgs e)
        {
            isMouseDown = false;
            isDragAndDrop = false;
        }

        private void radListBox1_DragOver(object sender, DragEventArgs e)
        {
            e.Effect = DragDropEffects.Copy;
        }

        private void radListBox1_DragDrop(object sender, DragEventArgs e)
        {
            RadListBox listBox = sender as RadListBox;

            List<RadItem> items = (List<RadItem>)e.Data.GetData(typeof(List<RadItem>));
            RadListBox sourceListBox = items[0].ElementTree.Control as RadListBox;

            foreach (RadItem lstBoxItem in items)
            {
                sourceListBox.Items.Remove(lstBoxItem);
                listBox.Items.Add(lstBoxItem);
            }
        }

I subscribed to the same events on both listboxes.

- Robert