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RadPersistenceManagerProxy

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Persistence Framework

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Bill O'Neil asked on 23 May 2013, 11:35 AM

I want to start using the Persistence Framework - in a complex project that uses many usercontrols and MasterPages.

Logic (and what documentation I see) demands that we add the RadPersistenceManager to the MasterPage and use RadPersistenceManagerProxy to add settings.

I'm trying to determine how to SAVE and LOAD settings from the .aspx/.ascx pages that use the RadPersistenceManagerProxy. The proxy doesn't seem to have the SAVE and LOAD methods. Do I need to find/create a reference to the actual RadPersistenceManager? Or can I use the proxy to trigger these events?

(For what its worth - I want to trigger LOAD on Page_Load (if settings exist) and I want to add a ImageButton on the .aspx/ascx to allow the user to make the changes they want and then save them.)

Bill

11 Answers, 1 is accepted

answered on 24 Jul 2015, 05:02 PM

Thanks, Peter. The demo, that you referenced, shows how to implement the Persistence Framework in a web page sans Master Page. My web app has a Master Page plus content pages. In Telerik documentation elsewhere, it was recommended that the RadPersistenceManager be implemented in the Master Page and the RadPersistenceProxyManager be implemented in the content pages. If that is not correct, please advise me on best practices on how best to implement the Persistence Framework when a Master Page is utilized. If that is correct, are there good examples somewhere of code in implementing the RadPersistenceProxyManager in code-behind?

answered on 11 Aug 2015, 10:59 PM

I need to back peddle, just a bit here. Apparently, my erratic behavior (on-screen) was self-inflicted. My Page_Load, Page_Unload, and subsequently, button Clicked event code, was suffering from too much logic, as to when to fire LoadState or SaveState. It was tepping on itself. Here's the (simplified) code that's working for me now ...

protected void Page_Load(object sender, EventArgs e)

{
string theKey = "TelerikAspNetRadControlsPersistedState";
theKey = "StorageProvider_" + Session["UserName"].ToString();
RadPersistenceManager1.StorageProviderKey = theKey;
var fileNameAndPath = Server.MapPath("~/App_Data/" + theKey);

if (File.Exists(fileNameAndPath) )
{
try
{
RadPersistenceManager1.LoadState();
}
catch (Exception theError)
{
Console.WriteLine("Exception for RadPersistenceManager LoadState: {0}", theError);
}
}

}

protected void Page_Unload(object sender, System.EventArgs e)
{
try
{
RadPersistenceManager1.SaveState();
}
catch (Exception theError)
{
Console.WriteLine("Exception for RadPersistenceManager SaveState: {0}", theError);
}
}