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NullReferenceException at Xceed.Wpf.DataGrid.ItemsSourceHelper.GetFieldDescriptors

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  •  07-15-2008, 5:19 AM Post no. 13551

    NullReferenceException at Xceed.Wpf.DataGrid.ItemsSourceHelper.GetFieldDescriptors

    Hi ,

    I am getting a System.NullReferenceException when setting a DataGridControl's ItemsSource property

    "Object reference not set to an instance of an object."

    at Xceed.Wpf.DataGrid.ItemsSourceHelper.GetFieldDescriptors(PropertyDescriptorCollection properties, Boolean supportDBNull)
       at Xceed.Wpf.DataGrid.ItemsSourceHelper.GetFields(IEnumerable itemsSource)
       at Xceed.Wpf.DataGrid.DataGridContext.get_ItemsSourceFieldDescriptors()
       at Xceed.Wpf.DataGrid.DataGridControl.GenerateColumnsFromItemsSourceFields()
       at Xceed.Wpf.DataGrid.DataGridControl.ProcessDelayedItemsSourceChanged()
       at Xceed.Wpf.DataGrid.DataGridControl.OnItemsSourceChanged(IEnumerable oldValue, IEnumerable newValue)
       at System.Windows.Controls.ItemsControl.OnItemsSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
       at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
       at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
       at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
       at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, OperationType operationType)

    I am using version: 2.0.8277.15250, and I am setting my own version of the ComposersBindingListComplete sample code.

     Anyone else had this problem?

    Thanks,

    Adrian

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