Hi
I do the following
a) add a ComboBox inside the EditTemplate,
b) SAVE the Row
c) cause another postback from somewhere on the PAGE, thus causing the page to partially referesh irself via RadScriptManager, I get the following error:
Line: 6
Error: Sys.WebForms.PageRequestManagerServerErrorException: Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
If I take RadComboBox out and put the DropDownList or CheckBoxList, the problem stays.
I am using the 2010.2.929.35 version of Rad ASP.Net Ajax
Thanks
- Arvind
I do the following
a) add a ComboBox inside the EditTemplate,
b) SAVE the Row
c) cause another postback from somewhere on the PAGE, thus causing the page to partially referesh irself via RadScriptManager, I get the following error:
Line: 6
Error: Sys.WebForms.PageRequestManagerServerErrorException: Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
If I take RadComboBox out and put the DropDownList or CheckBoxList, the problem stays.
I am using the 2010.2.929.35 version of Rad ASP.Net Ajax
Thanks
- Arvind
1 Answer, 1 is accepted
0
Hello Arvind,
Could you clarify some aspect of your scenario?
First how do you add the RadComboBox, is it in some server-side event or on initial page load?
In case you make a post-back from the page and you want to update only a particular part of it, you should make an ajax request and thus RadAjaxManager should be used. So please clarify what is the exact scenario that you are trying to implement.
All the best,
Dimitar Terziev
the Telerik team
Could you clarify some aspect of your scenario?
First how do you add the RadComboBox, is it in some server-side event or on initial page load?
In case you make a post-back from the page and you want to update only a particular part of it, you should make an ajax request and thus RadAjaxManager should be used. So please clarify what is the exact scenario that you are trying to implement.
All the best,
Dimitar Terziev
the Telerik team
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