void panel_MouseDown(object sender, MouseEventArgs e)
{
if (sender.GetType() == typeof(SmallButtonControl))
{
SmallButtonControl btnSamll = sender as SmallButtonControl;
PanelControl panel = btnSamll.Parent as PanelControl;
panel.DoDragDrop(panel, DragDropEffects.Move);
}
else if (sender.GetType() == typeof(LargeButtonControl))
{
LargeButtonControl btnLarge = sender as LargeButtonControl;
PanelControl panel = btnLarge.Parent as PanelControl;
panel.DoDragDrop(panel, DragDropEffects.Move);
}
}