Re: Drag and drop issue with 'Data' argument

Nevermind.  This makes much more sense now that I've reviewed it in a
reference I have (that I couldn't review last evening because it was at
the office).

Peter

-----Original Message-----
From: Discussion forum for developers using Windows Forms to build apps
and controls [mailto:[email protected]] On Behalf Of
Peter Osucha
Sent: Monday, April 30, 2007 2:55 AM
To: [email protected]
Subject: [DOTNET-WINFORMS] Drag and drop issue with 'Data' argument

Beginning a dragdrop operation is easy enough - call the DoDragDrop
method.
I can't figure out what should best be put in the 'Data' argument for
the
DoDragDrop method though.

Suppose I had a tree that showed a file/folder structure and I wanted a
drop
target to be a textbox.  I could use the folder or file text as the
'Data'
object in the DoDragDrop method (or I could create another object based
on
the file or folder selected for the 'Data' argument).

However, what should the textbox be looking for in its
dragenter/dragover
events?  If I had another tree that showed some other information that
also
could be used as a dragdrop source, how could I restrict the textbox
from
being a target for the second tree while still allowing a drop from the
first tree?  It doesn't seem that I could just use text in the 'Data'
argument unless I did something (which seems like a hack) like prefacing
the
string with the source tree name...

Peter