I've used RadPersistenceManager and follow the following guide :
http://demos.telerik.com/aspnet-ajax/persistence-framework/examples/custom-storage-provider/defaultcs.aspx
Everything work fine in my machine and development server, but on production the below exception occurred, even the cookie is created on the client machine:
Title: xxxx.aspx, xxxxx Method Name:
Unable to read storage content. Could not find file
'C:\inetpub\wwwroot\XXXX\App_Data\TelerikAspNetRadControlsPersistedState'.
Exception: at
Telerik.Web.UI.PersistenceFramework.AppDataStorageProvider.LoadStateFromStorage(String
key) at Telerik.Web.UI.RadPersistenceManager.LoadState() at GraphicalUserInterface.JobBasket.LoadGridJobBasket()
The cookie is created on the client machine