System.Object
   System.Collections.ObjectModel.Collection<T>
      System.Collections.ObjectModel.ObservableCollection<T>
         Xceed.Silverlight.DataGrid.ColumnCollection
   System.ComponentModel.GroupDescription
      System.Windows.Data.PropertyGroupDescription
         Xceed.Silverlight.DataGrid.DataGridGroupDescription
   System.EventArgs
      Xceed.Silverlight.DataGrid.ActivatingCellEditorEventArgs
      Xceed.Silverlight.DataGrid.CreatingNewSourceItemEventArgs
      Xceed.Silverlight.DataGrid.DataGridEditEventArgs
         Xceed.Silverlight.DataGrid.DataGridEditCancelEventArgs
      Xceed.Silverlight.DataGrid.DataGridFilterEventArgs
      Xceed.Silverlight.DataGrid.NotificationReceivedEventArgs
      Xceed.Silverlight.DataGrid.SourceItemEventArgs
         Xceed.Silverlight.DataGrid.SourceItemEditEndedEventArgs
         Xceed.Silverlight.DataGrid.SourceItemHandledEventArgs
   System.Exception
      Xceed.Silverlight.DataGrid.DataGridException
         Xceed.Silverlight.DataGrid.DataGridInternalException
         Xceed.Silverlight.DataGrid.InvalidSourcePropertyNameException
   System.ValueType
      Xceed.Silverlight.DataGrid.FilterOperatorDescription
   System.Windows.DependencyObject
      System.Windows.ResourceDictionary
         Xceed.Silverlight.DataGrid.ThemeResourceDictionary
      System.Windows.UIElement
         System.Windows.FrameworkElement
            System.Windows.Controls.Control
               System.Windows.Controls.ContentControl
                  System.Windows.Controls.Primitives.ButtonBase
                     System.Windows.Controls.Primitives.ToggleButton
                        System.Windows.Controls.CheckBox
                           Xceed.Silverlight.DataGrid.DataGridCheckBox
                  Xceed.Silverlight.DataGrid.ContentControlBase
                     Xceed.Silverlight.DataGrid.Cell
                        Xceed.Silverlight.DataGrid.ColumnManagerCell
                        Xceed.Silverlight.DataGrid.EditableCell
                           Xceed.Silverlight.DataGrid.DataCell
                           Xceed.Silverlight.DataGrid.InsertionCell
                        Xceed.Silverlight.DataGrid.FilterCell
                        Xceed.Silverlight.DataGrid.StatCell
                     Xceed.Silverlight.DataGrid.GroupByItem
                     Xceed.Silverlight.DataGrid.GroupHeaderControl
                     Xceed.Silverlight.DataGrid.GroupNavigationSearchBox
               System.Windows.Controls.ItemsControl
                  System.Windows.Controls.Primitives.Selector
                     System.Windows.Controls.ComboBox
                        Xceed.Silverlight.DataGrid.DataGridComboBox
               System.Windows.Controls.TextBox
                  Xceed.Silverlight.Controls.AutoSelectTextBox
                     Xceed.Silverlight.Controls.NumericTextBox
                        Xceed.Silverlight.DataGrid.DataGridNumericTextBox
                     Xceed.Silverlight.DataGrid.DataGridTextBox
                        Xceed.Silverlight.DataGrid.FilterTextBox
               Xceed.Silverlight.DataGrid.ControlBase
                  Xceed.Silverlight.DataGrid.ColumnBackgroundControl
                  Xceed.Silverlight.DataGrid.DataGridControl
                  Xceed.Silverlight.DataGrid.GroupByControl
                  Xceed.Silverlight.DataGrid.NotificationControl
                  Xceed.Silverlight.DataGrid.Row
                     Xceed.Silverlight.DataGrid.ColumnManagerRow
                     Xceed.Silverlight.DataGrid.EditableRow
                        Xceed.Silverlight.DataGrid.DataRow
                        Xceed.Silverlight.DataGrid.InsertionRow
                     Xceed.Silverlight.DataGrid.FilterRow
                     Xceed.Silverlight.DataGrid.StatRow
               Xceed.Silverlight.DataGrid.IndicatorBase
                  Xceed.Silverlight.DataGrid.CommittingIndicator
                  Xceed.Silverlight.DataGrid.LoadingIndicator
               Xceed.Silverlight.DataGrid.LightTrailingControl
               Xceed.Silverlight.DataGrid.SpinnerBase
                  Xceed.Silverlight.DataGrid.CommittingSpinner
                  Xceed.Silverlight.DataGrid.LoadingSpinner
            System.Windows.Controls.Panel
               Xceed.Silverlight.DataGrid.ColumnElementsHost
                  Xceed.Silverlight.DataGrid.RootHost
               Xceed.Silverlight.DataGrid.GroupByControlPanel
      Xceed.Silverlight.DataGrid.Column
      Xceed.Silverlight.DataGrid.DataGridConfiguration
         Xceed.Silverlight.DataGrid.DataGridGroupConfiguration
      Xceed.Silverlight.DataGrid.DataGridContext
   Xceed.Silverlight.DataGrid.DataGridAnimationSettings
   Xceed.Silverlight.DataGrid.DataGridBindingInfo
   Xceed.Silverlight.DataGrid.DataGridGroupConfigurationSelector
      Xceed.Silverlight.DataGrid.FirstLevelGroupConfigurationSelector
   Xceed.Silverlight.DataGrid.DataGridPath
   Xceed.Silverlight.DataGrid.EditResult
   Xceed.Silverlight.DataGrid.GroupContext
   Xceed.Silverlight.DataGrid.Licenser
   Xceed.Silverlight.DataGrid.SelectedItemCollection
   Xceed.Silverlight.DataGrid.SelectionRange
   Xceed.Silverlight.DataGrid.SelectionRange.NotificationDictionary<TKey,TValue>
      Xceed.Silverlight.DataGrid.SelectionRange.EndRangeDictionary
      Xceed.Silverlight.DataGrid.SelectionRange.StartRangeDictionary
   Xceed.Silverlight.DataGrid.StatCellCollection
   Xceed.Silverlight.DataGrid.ValidationErrorBase
      Xceed.Silverlight.DataGrid.CellValidationError
      Xceed.Silverlight.DataGrid.RowValidationError

Reference

Xceed.Silverlight.DataGrid.v2.0 Assembly