NestedViewTemplate with Repeater

[digitall]

I am binding a RadGrid to a collection of standard business objects and using the NestedViewTemplate to display more information about each item. On each object that is part of the grid there is a sub-collection of items that I am wanting to bind to a repeater that is inside my NestedViewTemplate. I tried using the ItemCreated event handler and my repeater is successfully found, but my GridItemEventArgs.Item.DataItem is null so it can't bind it. Is there a way to do this?

[digitall]

Interestingly enough, it looks like in this case I was able to bind declaritively directly to the repeater without setting the datasource in the code behind. It looks like all is set!