All signs point to yes.
If you would like a better answer, you need to post some code so we can see what you did wrong. My guess is that you are not actually updating the underlying data when the boxes are checked...
I am absolutely not updating the underlying data programattically - I assumed that this was handled through the binding of the dataprovider (arrayCollection) to the component (datagrid.)
When the datagrid is updated, then this is simply updating the view and not the dataprovider, correct?
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Well that would be the problem then. Sometimes this can be done automatically, but most of the time there are some additional considerations you need to take. It sounds like maybe the data state of the render is getting wiped out before the edit is committed.
I suggest skimming over the following: