I need an itemRenderer in my ADG to span a few rows. Even though the AdvancedDataGridRendererProvider has property rowSpan, the function hasn't been implemented yet. My idea is to use TextArea as an itemRenderer and set its height to match the row span. But the problem is that my ADG has horizontalGridLines set to true. Although my TextArea itemRendere has a background color, I can still see the horizontalGridLines behind the itemRenderer. We didn't seem be able to set horizontalGridLines to false for a specific column. Any ideas of making an itemRender span across rows or making it look like spaning across rows? Many thanks.