[Solved] Object Reference exception

[Anan]

Hello

I am using silvelright 3 data grid. Once the data is loaded, when i select a row and hit tab i get the below exception

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Windows.Controls.GridView.GridViewDataControl.Move(FocusNavigationDirection navigationDirection)
   at Telerik.Windows.Controls.GridView.GridViewDataControl.ExecuteMoveCommands(FocusNavigationDirection direction)
   at Telerik.Windows.Controls.GridView.GridViewDataControl.MoveNext()
   at Telerik.Windows.Controls.GridView.GridViewDataControl.OnMoveNextCommand(Object sender, ExecutedRoutedEventArgs e)
   at Telerik.Windows.Controls.CommandBinding.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
   at Telerik.Windows.Controls.CommandManager.ExecuteCommandBinding(Object sender, ExecutedRoutedEventArgs e, CommandBinding commandBinding)
   at Telerik.Windows.Controls.CommandManager.FindCommandBinding(CommandBindingCollection commandBindings, Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
   at Telerik.Windows.Controls.CommandManager.FindCommandBinding(Object sender, RoutedEventArgs e, ICommand command, Boolean execute)
   at Telerik.Windows.Controls.CommandManager.OnExecuted(Object sender, ExecutedRoutedEventArgs e)
   at Telerik.Windows.Controls.ExecutedRoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object target)
   at Telerik.Windows.RadRoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at Telerik.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RadRoutedEventArgs routedEventArgs)
   at Telerik.Windows.RouteItem.InvokeHandler(RadRoutedEventArgs routedEventArgs)
   at Telerik.Windows.EventRoute.InvokeHandlersImpl(Object source, RadRoutedEventArgs args, Boolean raisedAgain)
   at Telerik.Windows.EventRoute.InvokeHandlers(Object source, RadRoutedEventArgs args)
   at Telerik.Windows.RadRoutedEventHelper.RaiseEvent(DependencyObject element, RadRoutedEventArgs args)
   at Telerik.Windows.DependencyObjectExtensions.RaiseEvent(DependencyObject element, RadRoutedEventArgs e)
   at Telerik.Windows.Controls.RoutedCommand.ExecuteImpl(Object parameter, UIElement target)
   at Telerik.Windows.Controls.RoutedCommand.Execute(Object parameter, UIElement target)
   at Telerik.Windows.Controls.RoutedCommand.System.Windows.Input.ICommand.Execute(Object parameter)
   at Telerik.Windows.Controls.GridView.GridViewDataControl.OnKeyDown(KeyEventArgs e)
   at System.Windows.Controls.Control.OnKeyDown(Control ctrl, EventArgs e)
   at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)

Even if the grid has null values it shouldn't blow i believe....

Thanks
Anil

[Vlad]

Hello,

 Can you post the exact version of the grid?

Regards,
Vlad
the Telerik team

[Anan]

2010.1.309.1030

Also, when there is no data in one of the records, and i try to sort that particular column, i get an exception....I would appreciate if you can help me with both these issues...

Thanks

[Vlad]

Hello,

 This version is our Q1 2010. Please download our latest official version - Q2 2010 Sp1. 

Kind regards,
Vlad
the Telerik team

[Anan]

Would that fix the problem???

[Vlad]

Hello,

 Indeed this will fix the problem. 

All the best,
Vlad
the Telerik team