Should work? Is it off by one?
It doesn't get that far. I get a compiler error, that no such function exists.
It seems like it should support it, since DataGrid extends ListBase, but apparently not.
Isn't there another way?
What does your code look like and what is the exact text of the error?
In another episode of "John programming cross-eyed", I was trying to call calculateDropIndex() against the "layout" property of the DataGrid like I do with a List. It's amazing how much better it works when I call it against the DataGrid itself.
myDatagrid.layout.calculateDropIndex(DropEvent); <- doesn't work
So, I figured it out. Thanks for the offer of help.