GridSettingPersister doesn't work correctly

[archimede]

Hello,
in my web application I have a problem using GridSettingsPersister. In the applcation I have different RadGrid and I want let the user modify them (move columns, change column order/visibility/size). So i followed the instruction at http://demos.telerik.com/aspnet-ajax/grid/examples/programming/savinggridsettingsonperuserbasis/defaultcs.aspx.

I want the user to access a single page where he can choose which RadGrid to modify. After he choses the RadGrid, the application loads the chosen view grid into a panel and let the user modify it. After that we can save the configuration string in database.

I've used the GridSettingsPersister class of the example.

My problem is this:
- I choose the radgrid and load the radgrid to modify into the panel
- I modify some column visibility  (show only 3 columns for example)
- I correctly save the settings into db
- I load the configuration from database string (here all works fine)
- I add visibility to another column and retry to save
- Now I load the settings from the database string instead of havinf 4 columns I see all columns of grid (it seems a wrong configuration string has been saved into database)

I use the following code to:
-load configuration

public static void LoadGridConfiguration(RadGrid pRdg, long pIdGruppoUtente, bool loadDefaultString = false)
   {
       GridSettingsPersister gsp = new GridSettingsPersister(pRdg);

       using (DMWEntities context = new DMWEntities())
       {
           long idControlloAspx = (from ctrl in context.ControlliAspx
                                   where (ctrl.NomeControllo == pRdg.ID)
                                   select ctrl.IdControlloAspx).SingleOrDefault();

           if (idControlloAspx == 0)
           {
               throw new Exception("Grid Control not defined in database [ControlliAspx]");
           }

           var stringaConfigurazioneGruppoUtente = (from pg in context.ProprietaGriglie
                                                    where (pg.IdControlloAspx == idControlloAspx) && (pg.IdGruppoUtente == pIdGruppoUtente)
                                                    select new { pg.StringaConfigurazione, pg.StringaConfigurazioneDefault }).FirstOrDefault();

           if (loadDefaultString)
           {
               gsp.LoadSettings(stringaConfigurazioneGruppoUtente.StringaConfigurazioneDefault);
           }
           else
           {
               gsp.LoadSettings(stringaConfigurazioneGruppoUtente.StringaConfigurazione);
           }
       }
   }

-save configuration

protected void btnPersistConfiguration_Clicked(object sender, EventArgs e)
    {
        MachinaWeb.ServerControls.RadPageView paginaConComboIdGruppoUtente = (MachinaWeb.ServerControls.RadPageView)((System.Web.UI.Control)MachinaWeb.ServerControls.Utility.FindControlType((Control)sender, typeof(MachinaWeb.ServerControls.RadPageView)));
        MachinaWeb.ServerControls.RadGrid gridUC = (MachinaWeb.ServerControls.RadGrid)((System.Web.UI.Control)MachinaWeb.ServerControls.Utility.FindControlType((Control)sender, typeof(MachinaWeb.ServerControls.RadGrid)));

        long selectedGU = long.Parse( ((RadComboBox)paginaConComboIdGruppoUtente.FindControl("blccmbGruppoUtente")).SelectedValue );

        //MessageBox.ShowTelerik(Page, this, "Configurazione salvata (Id Gruppo " + blccmbGruppoUtente.SelectedValue + ")");

        string gridName = gridUC.ID;

        using (DMWEntities context = new DMWEntities())
        {
            long idControlloAspx = (from ctrl in context.ControlliAspx
                                    where (ctrl.NomeControllo == gridName)
                                    select ctrl.IdControlloAspx).SingleOrDefault();

            if (idControlloAspx == 0)
            {
                throw new Exception("Grid Control not defined in database [ControlliAspx]");
            }


            var propGriglia = (from pg in context.ProprietaGriglie
                               where (pg.IdControlloAspx == idControlloAspx) && (pg.IdGruppoUtente == selectedGU)
                               select pg).FirstOrDefault();


            GridSettingsPersister gsp = new GridSettingsPersister(gridUC);
            string stringaConfigurazioneVista = gsp.SaveSettings();

            if (propGriglia == null)
            {
                //Creates row in database [Proprieta griglie]
                ProprietaGriglie pgNew = new ProprietaGriglie() { IdGruppoUtente = selectedGU, NomeGriglia = gridName, StringaConfigurazione = stringaConfigurazioneVista, IdControlloAspx = idControlloAspx, DataCreazione = DateTime.Now, DataAggiornamento = DateTime.Now, IdUtente = ((SessionInformation)Session["sessionData"]).IdUtente };
                context.ProprietaGriglie.AddObject(pgNew);
                context.SaveChanges();
            }
            else
            {
                //Updates row [Proprieta griglie]
                var pg = (from pgUpd in context.ProprietaGriglie
                          where (pgUpd.IdControlloAspx == idControlloAspx) && (pgUpd.IdGruppoUtente == selectedGU)
                          select pgUpd).Single();

                pg.StringaConfigurazione = stringaConfigurazioneVista;
                context.SaveChanges();
            }

        }
    }

-this is the code behind of my page

public partial class Configurazione_VisteTabellari : System.Web.UI.Page
{
    private RadGrid rdg = new RadGrid();

    protected void Page_Init(object sender, EventArgs e)
    {
        hfdIdCultura.Value = ((SessionInformation)Session["sessionData"]).IdCultura.ToString();
    }

    protected override void InitializeCulture()
    {
        System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo(((SessionInformation)Session["sessionData"]).Cultura);
        System.Threading.Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo(((SessionInformation)Session["sessionData"]).Cultura);
        base.InitializeCulture();
    }


    protected void Page_Load(object sender, EventArgs e)
    {
        //string resource_ModificareLayoutTabella = (string)GetGlobalResourceObject("Resource", "MessaggioModificaLayoutTabella");

        using (DMWEntities context = new DMWEntities())
        {
            if (!String.IsNullOrEmpty(hdfIdMascheraSelezionata.Value))
            {
                long idMascheraSelezionata = long.Parse(hdfIdMascheraSelezionata.Value);

                string urlVisioneTabellare = (from masc in context.Maschere
                                              where masc.IdMaschera == idMascheraSelezionata
                                              select masc.UrlControlloVistaTabellare).Single<string>();


                try
                {
                    RadGridStabilimenti uc = ((RadGridStabilimenti)LoadControl(urlVisioneTabellare));
                    uc.Type = CommonParameters.RadGridType.Configurazione;
                    pnlVistaTabellare.Controls.Clear();
                    pnlVistaTabellare.Controls.Add(uc);
                }
                catch (Exception)
                { }

                //Loads stringa configurazione di default per la grid
                //RadGrid gridUC = ((IUserControlGrid)pnlVistaTabellare.Controls[0]).GetGrid();

                //if (!Page.IsPostBack)
                //{
                //    try
                //    {
                //        Utility.LoadGridConfiguration(gridUC, ((SessionInformation)Session["sessionData"]).IdGruppoUtente, true);
                //    }
                //    catch (ArgumentNullException)
                //    {
                //    }
                //}

                string selectedGU = (((SessionInformation)Session["sessionData"]).IdGruppoUtente).ToString();
                blccmbGruppoUtente.SelectedValue = selectedGU;
                blccmbGruppoUtente.DataBind();
                //gridUC.DataBind();
            }
        }
    }

    protected void rtsPagina_TabClick(object sender, RadTabStripEventArgs e)
    {
        rts_Pagina.SelectedIndex = e.Tab.Index;
        rmp_Pagina.SelectedIndex = e.Tab.Index;
    }

    protected void RadGridVisioniTabellari_ItemCreated(object sender, GridItemEventArgs e)
    {
        ////Sets filter's textbox width
        //if (e.Item is GridFilteringItem)
        //{
        //    //30px di differenza rispetto alla larghezza della colonna
        //    GridFilteringItem gridFilteringItem = (GridFilteringItem)e.Item;
        //    ((TextBox)(gridFilteringItem["NomeMaschera"]).Controls[0]).Width = Unit.Pixel((int)(900 - CommonParameters.GridFilterWidthDistances));
        //}
    }
    protected void btnLoadConfiguration_Click(object sender, EventArgs e)
    {
        RadGrid gridUC = ((IUserControlGrid)pnlVistaTabellare.Controls[0]).GetGrid();
        string gridName = gridUC.ID;
        GridSettingsPersister gsp = new GridSettingsPersister(gridUC);

        Utility.LoadGridConfiguration(gridUC, long.Parse(blccmbGruppoUtente.SelectedValue));
    }

}

[Veli]

Hi archimede,

To be able to debug this issue, we are going to need some stripped down runnable project we can run locally. Please, consider opening a regular support ticket where you can send us your project as an attachment.

Greetings,
Veli
the Telerik team