Is there a known pattern to add elements to rows (possibly by just adding a new cell) using client side code?

I have attempted this by creating new elements inside a new cell that is appended to each row on the GridInitialized event; however, this causes the generation of a new empty first row for some reason. Widths of containers also need to be adjusted. Before I dive deeper into this, I was wondering if anyone had successfully attempted this, and what was the method?