A rotator with grids

Hi,
I'm quite new to the whole binding concept and are trying to create the following:
I have a rotator based on some sample code I found. It binds to an enumerable.
Each item in the rotator should display a grid of items and each of these items should display some properties.

The enumerable holds all of this data.

Now the rotator binds fine, but how do I create the grid? I can't bind the grid rows so I was thinking if I could get the property from the bindingcontext and manually forEach render the rows? But how do I get a value from the bindingcontext into a variable?

Thanks!