In my WinForms app I'd long ago implemented a drag & drop mechanism just like
is used in PowerPoint when one wants to rearrange the order of the slides.
Specifically, a thin black line is shown between thumbnails to indicate where
an item will be dropped.
As the user moved away I'd erase it by simply drawing another line using the
BackColor of the panel. This worked great! But I've recently switched to
using a Gradient panel and so now the BackColor no longer applies.
Can anyone recommend how I should erase the thin black line now?
--
Robert W.
Vancouver, BC
www.mwtech.com
