" 'Model': object is null " error in Telerik RadSchedular

Recently I was using RadSchedular on an application page for SharePoint. I came across this weird problem on the navigation of the RadSchedular. i.e "Day", "Week", "Month" etc. I can switch it once, but afterwards I cannot switch it back. I noticed an script error shown in the browser as.

" Scriptresource.axd of the property 'Model': object is null "

So I googled and found a similar problem in the Telerik forum

http://www.telerik.com/community/forums/aspnet-ajax/scheduler/asp-updatepanel-and-radscheduler-issues.aspx

The Fix :

Add this tag to the telerik control.

EnableEmbeddedScripts="false"

Then in the OnInit function of the page, do this...

protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);
            ScriptManager scriptManager = ScriptManager.GetCurrent(Page);
            scriptManager.ScriptMode = ScriptMode.Debug;
            string telerikAssembly = typeof(RadScheduler).Assembly.FullName;
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Common.Core.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Common.jQuery.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Common.jQueryPlugins.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Common.Popup.PopupScripts.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Common.Navigation.NavigationScripts.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Menu.RadMenuScripts.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Menu.ContextMenu.RadContextMenuScripts.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Input.TextBox.RadInputScript.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Input.DateInput.RadDateInputScript.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Input.NumericTextBox.RadNumericInputScript.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Calendar.RadTimeViewScripts.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Calendar.RadCalendarCommonScript.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Calendar.RadCalendarScript.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Calendar.RadDatePicker.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Calendar.RadDateTimePickerScript.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.ComboBox.RadComboBoxScripts.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Helpers.DateTime.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.RadSchedulerScripts.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.RecurrenceEditor.RecurrenceEditor.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.ContextMenu.RadScheduler.ContextMenu.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Week.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Week.GroupedByResource.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Week.GroupedByDate.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.MultiDay.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.MultiDay.GroupedByResource.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.MultiDay.GroupedByResource.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Day.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Day.GroupedByResource.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Month.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Month.GroupedByResource.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Month.GroupedByDate.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Timeline.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Timeline.GroupedByResource.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Views.Timeline.GroupedByDate.Model.js", telerikAssembly));
            scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.Scheduling.AdvancedTemplate.js", telerikAssembly));
        }

For some reason I had to comment this line, It gave an error on the page load.

scriptManager.Scripts.Add(new ScriptReference("Telerik.Web.UI.Scheduler.ContextMenu.RadScheduler.ContextMenu.js", telerikAssembly));

Afterwards the navigation worked like a charm.


Updates : This issue was also solved by Update Sharepoint 2010.