i'm currently working with some hierarchical data that i wanted to present using a RadGridView with its ChildTable feature.
Unfortunately i'm running in quite severe performance issues once i try to auto expand the child tables (waiting between 15 to 25 seconds to see my data).
I've read that placing the RadGridView in a container with infinite height (like ScrollViewer, Grid with height 'Auto', etc) could lead to such performance issues, but i didn't place it in such containers.
I prepared and attached a little demo project to reproduce my problem.
It would be great if someone got some tips for me on how to improve the performance when expanding multiple levels of hierarchies in a RadGridView.