Hi Henry,

The InsertionRow's DataContext is the System.Data.DataRow (assuming you are using DataTables, otherwise use whatever the type of your data item is). Therefore, you could handle the DetailConfiguration.InitializingInsertionRow event and get the data item there. Something like this:

<xcdg:DataGridControl.DetailConfigurations>
   <xcdg:DetailConfiguration InitializingInsertionRow="OnInitializingInsertionRow"
                                         RelationName="Employee_Orders">
      <xcdg:DetailConfiguration.Headers>
         <DataTemplate>
            <xcdg:InsertionRow />
         </DataTemplate>
      </xcdg:DetailConfiguration.Headers>
   </xcdg:DetailConfiguration>
</xcdg:DataGridControl.DetailConfigurations>

private void OnInitializingInsertionRow( object sender, InitializingInsertionRowEventArgs e )
{
   System.Data.DataRow row = e.InsertionRow.DataContext as System.Data.DataRow;
}