Radgrid frozen columns problem when grid in RadTab, on TabChange event

[Lucian Duma]

Hi,
I think I found a problem in the Asp Ajax Controls suite, but to reproduce it, is rather difficult. Here it is:

Add a RadTabStrip to a aspx page. Add two tabs. Bellow the tabs, add a RadMultiPage control, and inside add, for each tab, a RadPageView, so that when a tab changes the corresponded pageview will be selected.

Set first tab on radTabStrip as Selected = true.
Set 0 as a default selected tab index on the RadMultiPage (first tab is selected).

Now, on the second tab strip, add a radgrid. Set AutoGenerateColumns to false, and dinamically add some rad columns on Page_Init (so that they are persisted in viewstate, as was nicely described in the online help). In my example, I've added 41 columns, I need to show some data in a pivoted manner. On this pivoted view, i need to set the first column frozen, (so that the other 40 can slide), and so I did, at design time.

If you're still following :), here is the problem:
The page loads fine, with the first tab selected. When I select the second tab, the first column that should be frozen is not frozen but is sliding along with the others. 
I've noticed that if I set that the second tab that contains the grid as selected by default when the page loads, the frozen column remains frozen and is acting as it should. Then if I select the first tab, and than reverse back to the second, the issue reapears.

I'm using the ASP.NET Ajax Controls, version Q2 2010.
Update: Forgot to mention: the bug appears only in IE7 and IE8 :).

Thanks for your help.
Lucian

[Pavlina]

Hi Lucian,

Based on the supplied information, it is hard to determine what is causing this unwanted behavior. If the issue persists, you can open a formal support ticket, and send us a small working project, demonstrating your setup, and showing the unwanted behavior. We will debug it locally, and advise you further.

Thank you.

Greetings,
Pavlina
the Telerik team