ExtJS4: How to define DnD object method in DnD plugin

I am working on a page with Drag from Grid to Tr开发者_开发百科ee and using gridviewdragdrop and treeviewdragdrop plugin.

Everything works fine, but I don't really need to drag node, just need get the dragdata and dropdata, so I want to stop the drop action.

I found notifyDrop method in Ext.dd.DropTarget but don't know how to define that in plugin config. Anyone help? Thanks a lot!

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you can use the beforedrop event, do your thing and at the end of the event just return false; in there, that way you will not complete the drop, that's what I do to a special case that I have.