Grid resizes improperly when window maximized

[almostEric]

I have a GridView using grouping. If I maximize window at start, there is no problem. However, if I scroll down, then maximize window, the header expands but not the row area itself, but the scroll bar disappears. Restoring window returns state back to normal, and if I scroll back to top, then maximize everything is ok

[Dinko | Tech Support Engineer]

Hi Eric,

I have tried to reproduce this behavior on my side but I think I am missing a step from your scenario. Attached to this reply is the sample project which I used to test your case. Can you take a look at it and let me know if I need to modify something to reproduce it? Also, would it be possible to create a video which demonstrates this behavior and the steps?

Regards,
Dinko
Progress Telerik

[almostEric]

Hi Dinko,

I'll take a look at the project you sent. In meantime, here is a video. Note when I first maximize the window, you can see all the groups. Next I scroll down and maximize again. All the groups that were scrolled out of view, are still not visible, except there is no longer a scroll bar. 

https://vimeo.com/313776975

 

[Dinko | Tech Support Engineer]

Hi Eric,

Thank you for the provided video. 

Using this video I was able to reproduce this behavior. Therefore I have logged it in our Feedback Portal where you can track its progress. This behavior is not reproducible when the new virtualization mechanism is set. To apply it you can set the GroupRenderMode property to Flat. 

In addition, I have updated you Telerik Points for bringing this behavior to our attention.

Regards,
Dinko
Progress Telerik