Eclipse Community Forums: GMF (Graphical Modeling Framework) » Drag and drop from Palette into a compartment issue

Home » Modeling » GMF (Graphical Modeling Framework) » Drag and drop from Palette into a compartment issue(Unable to drag a palette entry into the compartment initially.)

Drag and drop from Palette into a compartment issue [message #1105943]

Tue, 10 September 2013 09:25

Eclipse User

Hi, I have a node with a compartment. When I drag a node from the palette into the compartment, nothing happens and I see a NullPointerException in the logs. However, after trying for 3 or 4 times and holding the pointer in the same position for a few seconds, it works fine. Is this an initialization problem? I am not sure what is going on. Since it works well after a while, this is not a fatal error but an annoying one. I would like to know what needs to be initialized for this to work the first time.
This is the method:
java.lang.NullPointerException at org.eclipse.gef.dnd.TemplateTransferDropTargetListener.updateTargetRequest(TemplateTransferDropTargetListener.java:138)

Any suggestions towards a solution is appreciated.

Thanks

Re: Drag and drop from Palette into a compartment issue [message #1106748 is a reply to message #1105943]

Wed, 11 September 2013 09:51

Eclipse User

I figured out why this is happening. The focus must be on the compartment to drag and drop from the palette. Clicking twice on the compartment brings it into focus and drag and drop works fine. Smile

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