Scrolling issue with RadTab control in RadGridView RowDetails

[Alice]

I have a RadTabControl in a RowDetailsTemplate.  Each RadTabItem contains another RadGridView.  When I expand the bottom row of the main grid and then click on the third tab item the vertical scroll bar appears (due to the data and the size of the grid containing the control).  If I scroll the scroll bar to the bottom of the grid and then back up to the top of the grid, the RadTabControl, on its own, switches back to displaying the first tab item.  Once this happens the scrolling is in some weird state where if you just put your mouse over the scroll bar and move it (without clicking) it will scroll.  This does not happen when I expand the first row of the main grid (I only have 2 rows in the main  grid). 

Is this a bug or am I missing something?

Thanks.

P.S.  I have a sample project that displays this behavior.  Is the only way to submit this through code blocks?

[Vera]

Hello Alice,

In order to send us a sample project, you should open a support ticket. We will debug it on our side and do our best to provide a solution as soon as possible.
Thank you in advance.

All the best,
Vera
the Telerik team

[Alice]

Submitted as ticket 471577

[Vera]

Hello Alice,

The RadTabControl behavior you described is expected and it is result of the RadGridView UI virtualization. The rows and RowDetails respectively are recreated when you scroll.

As for the scroll bar issue, we will need some more time to investigate it. I will contact you as soon as I have more information.

Greetings,
Vera
the Telerik team