If you want to access a cell in one of the rows, you need to provide a key for it. In the automation when you connect the yellow lines to the property of method from the cell or the control within a row, you'll see a key fitting appear on the control. You can supply it an index (if you know the row or if you want to iterate through the rows and check things), or you can provide a query to locate and select the appropriate row. Let me know if you have any more questions and I can put together a quick example from our training site.

Here's an example using the query and using the index as the key.