Drag Drop - Move Data Between Apps

  • Thread starter Thread starter Mike
  • Start date Start date
M

Mike

I want to drag drop data from one app to another. If the other app
chooses to ‘move’ the data, I need to respond by deleting it from the
source app.

I was reading about the GiveFeedBack event.
See: http://msdn.microsoft.com/en-us/library/system.windows.forms.control.givefeedback.aspx

It states “If the value of DragAction is Drop, the drop effect value
is returned to the source, so the source application can perform the
appropriate operation on the source data; for example, cut the data if
the operation was a move.”

OK, that’s exactly what I want to do but what event is fired to tell
me the drop effect? Unfortunately, the documentation doesn’t say. I
don’t see any event getting fired including the DragDrop event.

Any ideas?

Thanks,
Mike
 
The Control.DoDragDrop method return value will indicate the action that the
atregt took.

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I want to drag drop data from one app to another. If the other app
chooses to ‘move’ the data, I need to respond by deleting it from the
source app.

I was reading about the GiveFeedBack event.
See:
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.givefeedback.aspx

It states “If the value of DragAction is Drop, the drop effect value
is returned to the source, so the source application can perform the
appropriate operation on the source data; for example, cut the data if
the operation was a move.”

OK, that’s exactly what I want to do but what event is fired to tell
me the drop effect? Unfortunately, the documentation doesn’t say. I
don’t see any event getting fired including the DragDrop event.

Any ideas?

Thanks,
Mike
 
I want to drag drop data from one app to another. If the other app
chooses to ‘move’ the data, I need to respond by deleting it from the
source app.
Click to expand...

Good luck with that. I once looked into D&D, and while there's a lot
of free code out there, there's always something going wrong when you
try and implement it. And I notice many programs today have gotten
away from using D&D, which was popular about 5 to 10 years ago. I
would just stick a menu item and be done with it. To me, D&D is not
that intuitive, as to what exactly it's supposed to do (when you drop
another program onto it). It's a gimmick IMO.

RL
 
Thanks G! That was it. I was misunderstanding the DoDragDrop. I
thought it immediately returned and everything was done with events
after that.
 
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