Hello,
I'm pretty new at telerik and I'm trying to get something like in the picture but I have no idea how to do that because RadGrid doesn't support Content. I have a RadGrid (let's call it Main RadGrid) which will only have one row. This Row should be expandable and shoud contain Tabs (see picture). Each of these tabs should have their own RadGrid with predefinded columns. And you should be able to Click on the + Tab above and add your own tab with RagGrid in it. The calculations from these Tabs should be trasfered into Main RadGrid (with one row) and populate it. It doesn't matter for now how the calculations are made it is only the visual thing. The first thing I don't know how to do is to create RadGrid which has one empty Row on initialisation. Then how to make this row expandable to cointain Tabs. etc...When I try to put something into RadGridView (other object) it says it doesn't support content. Thank you for your help.