public class StoreData
{
    public IEnumerable<VTerminal> Terminals { get; set; }
    public IEnumerable<Bag> AllBags { get; set; }
}

                        <DataGridTemplateColumn Width="19*" >
                            <DataGridTemplateColumn.CellStyle>
								<Style TargetType="{x:Type DataGridCell}">
									<Setter Property="Block.TextAlignment" Value="Right"/>
								</Style>
                            </DataGridTemplateColumn.CellStyle>
                            <DataGridTemplateColumn.CellEditingTemplate>
                                <DataTemplate>
                                    <DataGrid ItemsSource="{Binding Path=AllBags}" DataContextChanged="DataGrid_DataContextChanged" LoadingRow="DataGrid_LoadingRow"/>
                                    <!--<StackPanel Orientation="Horizontal" ItemsSource="{Binding Path=AllBags}">
                                        
                                    </StackPanel>-->
                                    <!--<DataGrid ItemsSource="{Binding AllBags}" Background="Transparent" AutoGenerateColumns="False" BorderThickness="0" RowHeaderWidth="0" CanUserAddRows="False"
                                              DataContextChanged="DataGrid_DataContextChanged" LoadingRow="DataGrid_LoadingRow">
                                    </DataGrid>-->
                                </DataTemplate>
                            </DataGridTemplateColumn.CellEditingTemplate>
                        </DataGridTemplateColumn>