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haithambradai / gong-wpf-dragdrop

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Adorner always visible #16

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
The Adorner is only visible when effects != none AND dragsource does also
accept drops.

I don't know about the window guidelines, but I like that the Adorner is
always visible (even if the source doesn't accept drops). 

I did accomplish this in two ways:
1. Let the source also accept drops. Create a class ListViewDropHandler :
IDropTarget that always returns Effects.None at dragover
2. Change DropTarget_PreviewDragOver in dragdrop.cs. Comment the line "if
(dropInfo.Effects != DragDropEffects.None)" and remove the else part.

I came up with this idea as it is a bit strange that when you start
dragging you only see the "forbidden sign" and when a drag is allowed
you'll see the adorner with the "copy sign".

What do you think about this?

Original issue reported on code.google.com by sportfr...@gmail.com on 27 May 2010 at 8:50