Not getting persistance in usercontrol to work

[C]

I have a usercontrol, categoryTree, for which I want to save it's state (namely whether checkboxes in a RadTreeView are checked) across sessions. So I have added this to the main page:

<telerik:RadPersistenceManager ID="RadPersistenceManager1" runat="server">
    </telerik:RadPersistenceManager>

And this to categoryTree.aspx:

​<telerik:RadPersistenceManagerProxy ID="RadPersistenceManagerProxy1" runat="server">
    <PersistenceSettings>
        <telerik:PersistenceSetting ControlID="RadTreeView1" />
    </PersistenceSettings>
</telerik:RadPersistenceManagerProxy>

And this to the codebehind:

private RadPersistenceManager _persistenceManager;

protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            _persistenceManager = RadPersistenceManager.GetCurrent(Page);
            if (!IsPostBack)
                _persistenceManager.LoadState();
        }


(and in the event for checked nodes):

_persistenceManager.SaveState();

But after I restart the page, the previous state does not get loaded. What am I missing?

[C]

I have also tried doing the save and load in the main page's Page_Load and Page_PreRender. But nothing happens.

What else needs to happen before the data persists?

[Peter Filipov]

Hi,

Please review the attached project. It implements the desired functionality. Keep in mind that for the first start of your application there should be a file (TelerikAspNetRadControlsPersistedState) in the App_data folder.

Regards,
Peter Filipov
Telerik

 

 

[C]

I actually managed to save the state by myself. However, I am now struggling with the following:

I save the state of a RadListBox, which in turn filters events for a RadScheduler. However, I haven't been able to make the scheduler use the state of the listbox before it's first load.

That is, the first time the page loads, the filter settings are correct (checkboxes), but the data in the scheduler does not reflect this.

[C]

Nevermind, I think I've solved it.