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I am using the grid and I have a number of unbound columns...

This only happens while the grid has grouping enabled, when I change a value of a cell it throws this error....

I can give more information if needed, I am going to try to throw together a…

Hi There,

Firstly I would like to apologise if this has already been asked and answered, but i have spent a couple of hours cruising through the forums looking for an answer to my question.

My problem is that I have a collection of entities, which are…