I'm resizing my DG, but probably not the same thing we're solving.
The first thing that comes to mind, is use percentages in the ItemRenderer (& the components inside it).
I assume as the Grid resizes, and the Cells resize, the components inside it will resize as well.
No, it's not working. I have my editors at 100% width, but when grid is resizing with an editor visible the editor keeps its width while column becomes wider.
Anyone? Any idea, please?