Listbox woes

[John Dann]

I had a listbox that allows reordering of listed items using the mouse
to drag and drop. In the DragDrop event handler, the key instructions
are:

MyListBox..Item s.RemoveAt(PreM oveIndex)
MyListBox..Item s.Insert(PostMo veIndex, itemtext)

This all works fine.

I then decided that I wanted to display a longer text description of
the currently selected ListBox item in a separate textbox AND have the
description update whenever the currently-selected item in the Listbox
changed.

So I put some code to do this in a MyListBox.Selec tedIndexChanged
event handler. Sadly this has broken the feature that allows
reordering of Listbox items with the mouse.

What actually happens is that the item that is selected and picked up
to drag simply disappears from the listbox. I'm guessing that the
RemoveAt instruction gets carried out, but this causes the
SelectedIndexCh anged event to fire and execution passes to its own
event handler, never to return.

So a couple of questions please:

1. Is my idea of what's going wrong here likely to be correct?

2. Can anyone suggest a workaround or maybe a different way of
achieving the same end? (Or maybe a pointer to some online resource
that covers this sort of control operation.)

Thanks
JGD