[news.eclipse.platform.swt] Re: How to use dropAccept()

[Mark Dexter <dextercowley@xxxxxxxxx>]

Mark Levison wrote:
> I've tried to write dropAccept() (implementing DropTargetListener) and I 
> can't get it to work.
>
> Naively I assumed that in dropAccept() the event.data field would be 
> populated. So I wrote:
>
> dropAccept(DropTargetEvent event) {
>     if (false == (event.data instanceof FooBar)) {
>        event.detail = DND.DROP_NONE;
>     }
> }
>
> The problem is that event.data is null - so I would never accept any drops.
>
> I had a look at the event.currentDataType in the debugger and I'm just 
> confused.
>
> So how do implement dropAccept so that can reject any drops that aren't 
> going to be of type foobar.
Hi Mark. I'm not familiar with the dropAccept() method. I found the 
article below to be very helpful.
http://www.eclipse.org/articles/Article-SWT-DND/DND-in-SWT.html

Also, have you looked at the SWT Snippets for Drag and Drop?
http://www.eclipse.org/swt/snippets/

Hope this helps. Mark