save group-header state over postback event

[prayag ganoje]

Hello,

I want to maintain the gropheader state even though page has a postback event. I found link. Can you please provide it in VB since I am not able to hook up itemcommand event.

[Iana Tsolova]

Hi prayag,

Find the VB.NET version of the demo in the attached file.

Best wishes,
Iana
the Telerik team

[prayag ganoje]

Thanks for the sample code. It wroked for me excluding one scenario.

If I moved to some other page and come back to ths portal page through browser back button then browser takes the page from cache itself and hence does not calls the page load event. And DataBound event does not raise.

Now, here code fails. Though there are expaanded group headers, page displays it as collapsed. 

I dont know but can I disable cashing for that page since rest of the docks on the page uses cashing ?

I also caanot disable browser back button since it will be inconsistant with rest of the web pages.

What will be the best method to achieve this ?

[Iana Tsolova]

Hi prayag,

Is the page ajaxified?
If so, you can mplement browser history through the ScriptManager. Find more information below:
http://dotnetslackers.com/articles/aspnet/AFirstLookAtASPNETExtensions35HistoryPoints.aspx
http://msdn.microsoft.com/en-us/library/system.web.ui.scriptmanager.addhistorypoint.aspx
http://msdn.microsoft.com/en-us/library/cc488548.aspx

All the best,
Iana
the Telerik team