Article relates to
Both classic and ASP.NET AJAX controls
Hristo Kosev, Telerik
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Save the viewstate of RadControls server-side
We use a common approach to store our RadControls ViewState and you shouldn't have any problems storing it on the server (when the EnableViewState property for the page in which the control(s) reside is set to True). Our products can also work with custom ViewStateManager classes - just keep in mind that the .aspx web form in which the control(s) is(are) placed should extend from the BasePage class,
e.g. public class WebForm1 : BasePage
and you should place the following lines in your web-application Web.config file:
Attached is a small demo project illustrating this approach.
For additional information concerning the custom viewstate manager usage please review the following online article: http://aspalliance.com/articleViewer.aspx?aId=72&vId=1&pId
An alternative approach is discussed in this article on the CodeProject site: http://www.codeproject.com/KB/aspnet/ViewStatePersistance.aspx
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