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[Solved] [Q2 2009] Grouping appears just collapsed

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GridView

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answered on 08 Jul 2009, 03:37 PM

Hello,
I've got a strange problem,
if I set the DataLoaded event on the grid, I receive this error

    
            throw new Error("Unhandled Error in Silverlight 2 Application Object reference not set to an instance of an object. 

              at Telerik.Windows.Controls.GridViewColumnCollection.SetColumnAppearanceProperty(DependencyObject dataColumn, DependencyProperty property, DependencyProperty sourceProperty)

              at Telerik.Windows.Controls.GridViewColumnCollection.SetColumnAppearanceProperties(DependencyObject column)

              at Telerik.Windows.Controls.GridViewColumnCollection.RefreshColumnAppearance()

              at Telerik.Windows.Controls.GridView.GridViewDataControl.OnAppearancePropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)

              at Telerik.Windows.PropertyMetadata.<>c__DisplayClass1<Create>b__0(DependencyObject d, DependencyPropertyChangedEventArgs e)

              at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object newValue, Object oldValue)          at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isSetByStyle, Boolean isSetByBuiltInStyle)   at MS.Internal.FrameworkCallbacks.SetValueCustom(IntPtr nativeRoot, IntPtr nativeTarget, UInt32 propertyId, String attrValue, CValue& propertyValue, Int32 typeIndex, Boolean isSetByStyle, Boolean isSetByBuiltInStyle)");

Even if I do nothing inside the method... any suggestion??

Thanks in advance