You can get the DataRowView from the CurrencyManager.
Dim cm As CurrencyManager = CType(Me.BindingContext(Me.gridDataBoundGrid1.DataSource, Me.gridDataBoundGrid1.DataMember), CurrencyManager)
Dim position As Integer = Me.gridDataBoundGrid1.Binder.RowIndexToPosition(e.RowIndex)
Dim drv As DataRowView = cm.List(position)
Here is a little sample.
WindowsApplication2_7932.zip