'Declaration
 
Public Function GetContainerFromItem( _
   ByVal item As Object _
) As DependencyObject

Public Sub New()
  InitializeComponent()
  Dim grid As New DataGridControl()
  Dim view As New DataGridCollectionView( App.Orders.DefaultView )
  grid.ItemsSource = view
  ' Subscribe to the PropertyChanged event to know when the CurrentItem property changes.
  AddHandler grid.PropertyChanged, AddressOf grid_PropertyChanged
  Me.Content = grid
End Sub

Private Sub grid_PropertyChanged( ByVal sender As Object, _
                                 ByVal e As System.ComponentModel.PropertyChangedEventArgs )
  If e.PropertyName = "CurrentItem" Then
    ' Retrieve the data-row container for the current item. Can be Nothing if the data item
    ' is not in the viewport.
    Dim grid As DataGridControl = CType( sender, DataGridControl )

    Dim row As DataRow = TryCast( grid.GetContainerFromItem( grid.CurrentItem ), DataRow )
    ' Change the background of the data row to pink. Data rows are recycled once they
    ' exit the viewport; therefore, any modifications made to a data row will
    ' be discarded once it is no longer in the viewport.
    row.Background = Brushes.Pink
  End If 
End Sub

Public Window1()
{
  InitializeComponent();
  DataGridControl grid = New DataGridControl();    
     
  DataGridCollectionView view = New DataGridCollectionView( App.Orders.DefaultView );
  grid.ItemsSource = view;
  // Subscribe To the PropertyChanged Event To know When the CurrentItem Property changes.
  grid.PropertyChanged += 
        New System.ComponentModel.PropertyChangedEventHandler( grid_PropertyChanged );     
     
  this.Content = grid;
}

void grid_PropertyChanged( Object sender, System.ComponentModel.PropertyChangedEventArgs e )
{
  If( e.PropertyName == "CurrentItem" )
  {
    // Retrieve the Data-row container For the current item. Can be null If the Data item
    // Is Not In the viewport.
    DataGridControl grid = sender As DataGridControl;

    DataRow row = grid.GetContainerFromItem( grid.CurrentItem ) As DataRow;
    // Change the background of the Data row To pink. Data rows are recycled once they
    // Exit the viewport; therefore, any modifications made To a Data row will
    // be discarded once it Is no longer In the viewport.
    row.Background = Brushes.Pink;
  }
}