The RadGrid's AutoGenerateColumn is set to True. it can generate columns from the data source and load perfectly fine. Then I save the Grid Setting using the PersistanceManager. All good so far

The Grids data-source is actually taken from a View in database. only if I remove a column from the database View, and then try to load the grid along with saved settings then it fails because now the column that was there when saving settings no longer exists in datasource.

Here is how first settings are loaded 

RadPersistenceManagerCs.LoadState()

and then

RadGridCs.Rebind()

The error is thrown in .Rebind()

The RadPersistanceManager does not expose any property where i can see what was loaded

I wonder if it is possible to verify if columns in saved settings match columns in data-source some other way

Thanks

Harshad

Hi

I have a inherited class of RadTreeView with TreeNodeExpandMode set on ServerSideCallBack.

I will save the RadTreeView's expanded nodes using RadPersistenceManager. 

I set ControlID on RadPersistenceManager at server side

CookieStorageProvider is the class of this example: https://demos.telerik.com/aspnet-ajax/persistence-framework/examples/custom-storage-provider/defaultcs.aspx

I use two button to save/load state

When I save a state I receive only this code

Where am I doing wrong? Why am I not getting the status of the RadTreeView?

I use Telerik Ajax Q2 2012.

Thanks

We are getting this inconsistency in the xml generated by the persistence framework, where by for some some instances the visible tag under PersistableColumnSetting is setting to false. 

            <PersistableColumnSetting>

              <UniqueName>PermitID</UniqueName>
              <Visible>false</Visible>
              <Display>false</Display>
              <SortExpression />
              <GroupByExpression />
              <OrderIndex>2</OrderIndex>
              <CurrentFilterFunction>NoFilter</CurrentFilterFunction>
              <CurrentFilterValue />
              <AndCurrentFilterFunction>NoFilter</AndCurrentFilterFunction>
              <AndCurrentFilterValue />
              <Width />
              <Aggregate>None</Aggregate>
            </PersistableColumnSetting>

and these seem to happen to columns that are with Display set to false, this is ruining the our grid because we need these column in OnItemDataBound and these columns become blank.

                        <telerik:GridBoundColumn DataType="System.Int32" ReadOnly="True" Display="False" Exportable="False" UniqueName="PermitID" DataField="PermitID">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="TenantID" DataType="System.Int32" Display="False" ReadOnly="True" Exportable="False" UniqueName="TenantID" />
                        <telerik:GridBoundColumn DataField="PermitGUID" DataType="System.Guid" UniqueName="PermitGUID" Display="False" Exportable="False" ReadOnly="True">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn HeaderStyle-Width="115px" FilterControlWidth="50px" FilterControlAltText="Filter Ref column" Aggregate="Count" FooterAggregateFormatString="{0} items" DataField="PermitRef" HeaderText="Permit Ref" SortExpression="PermitRef" UniqueName="PermitRef" ItemStyle-Font-Underline="true" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true"/>

We are finding it hard to debug because whenever we test, visible tag is always set to true, but some of our users are experiencing this. What triggers persistence framework to set visibility to false?

I have a situation where the RadGrid Filter criteria is saved, but, the RadGrid doesn't execute the Filter expression (yes, I tried ReBind()) upon re-loading Persistence.  Also, Sorts are not re-loaded either.  Only the Filter criteria value is re-loaded upon returning to the page.

I have a RadTabStrip with (3) RadGrids.  I implemented RadPersistenceManager with PersistenceSettings for each RadGrid, loading and saving with Page_Load and Page_Unload (code below, if needed).  Everything was working great; Sort & Filter were the same when I returned from exiting the app or returning from another page.  Something changed, though.  I'm not sure where.  The RadGrid Filter criteria is saved, but, the RadGrid doesn't execute the Filter expression, and the Sorts don't re-load.  What could've possibly happened to cause this?

 <telerik:RadPersistenceManager ID="RadPersistenceManager_AssetTabs" runat="server">
    <PersistenceSettings>
        <telerik:PersistenceSetting ControlID="RadGrid1" />
        <telerik:PersistenceSetting ControlID="RadGrid2" />
        <telerik:PersistenceSetting ControlID="RadGrid3" />
    </PersistenceSettings>
</telerik:RadPersistenceManager>

protected void Page_Load(object sender, EventArgs e)

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

    //bool IsPersistenceLoaded = (bool)Session["PersistenceLoaded"];
    if (File.Exists(fileNameAndPath)) // && !IsPersistenceLoaded)
    {
        try
        {
            if (!IsPostBack)
            {
                RadPersistenceManager_AssetTabs.LoadState();
            }
        }
        catch (Exception theError)
        {
            Console.WriteLine("Exception for RadPersistenceManager LoadState: {0}", theError);
        }
    }
}

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

​

Hi,

I have requirement where on 1 main aspx page i have 3 user controls(ascx).

Each ascx has a radgrid.I need to save state of each grid in database individually on gridbutton click.

Tried- I have created a custom storage provider and implemented methods SaveStateToStorage and LoadStateFromStorage.

Now if I apply persistencemanger on any ascx and call .savestate it goes to SaveStateToStorage  and all works fine.

But if I move persistencemanger  to aspx and apply persistencemangerproxy on ascx nothing works.

Sample code-

on aspx-  <telerik:RadPersistenceManager  ID="mainPersistenceManager" runat="server">   </telerik:RadPersistenceManager>

on aspx.vb- pageload event -  mainPersistenceManager.StorageProvider = New SettingsStorageProvider() 'This is my custom storage provider

on ascx- <telerik:RadPersistenceManagerProxy  ID="PersistenceManagerProxy1" runat="server" UniqueKey ="1">

        <PersistenceSettings>
            <telerik:PersistenceSetting ControlID="radgrid1" />
        </PersistenceSettings>
    </telerik:RadPersistenceManagerProxy>

on ascx.vb- on button click event-

 Dim ascxPersistenceManager As RadPersistenceManager

 ascxPersistenceManager = RadPersistenceManager.GetCurrent(Page)
       ascxPersistenceManager.PersistenceSettings.AddSetting("radgrid1")
        SettingsStorageProvider.StorageProviderKey = Key
        ascxPersistenceManager .SaveState()

Now on button click i get exception that it could not find control with id=radgrid1

but if i comment this line "ascxPersistenceManager.PersistenceSettings.AddSetting("radgrid1")"

somehow it calls "LoadStateFromStorage" of my custom storage provider rather than "SaveStateToStorage" method.

Incase when i dont use proxy and put persistencemanger in ascx only it hits correct method but not in case of proxy.

Please help 

Thanks,

Ankita

I have the following ComboBox on my page but although the Text value is persisted, the selected value is not. Therefore my grid loads all items regardless of what is in the ComboBox when the page loads. What do I need to change?