Comment puis-je regrouper des articles dans une liste WPF?

j'ai un ListView que je veux grouper les résultats dans, Cependant les exemples que je trouve ne fonctionnent pas. Comment regrouper mes résultats?

je veux du groupe sur l' Status propriété d'un objet personnalisé.

voici ce que j'ai:

<ListView IsSynchronizedWithCurrentItem="True"
          ItemsSource="{Binding}"
          HorizontalContentAlignment="Stretch"
          ScrollViewer.HorizontalScrollBarVisibility="Disabled"
          Background="Transparent" SelectionChanged="ListView_SelectionChanged"
          Name="lstShelvedOrders">

        <ListView.GroupStyle>
            <GroupStyle>
                <GroupStyle.HeaderTemplate>
                    <DataTemplate>
                        <TextBlock FontWeight="Bold" FontSize="15"
                         Text="{Binding Path=Status}"/>
                    </DataTemplate>
                </GroupStyle.HeaderTemplate>
            </GroupStyle>
        </ListView.GroupStyle>

        <ListView.ItemContainerStyle>
            <Style TargetType="{x:Type ListViewItem}">
                <Setter Property="BorderThickness" Value="1" />
                <Setter Property="Width" Value="Auto" />
                <Setter Property="FontSize" Value="10.4"  />               
            </Style>
        </ListView.ItemContainerStyle>

        <ListView.View>
            <GridView>
                <GridViewColumn DisplayMemberBinding="{Binding Path=Number}" Header="Shelve ID"  />
                <GridViewColumn DisplayMemberBinding="{Binding Path=Customer}" Header="Customer" />
                <GridViewColumn DisplayMemberBinding="{Binding Path=PurchaseOrderNo}" Header="PO Number" />
                <GridViewColumn DisplayMemberBinding="{Binding Path=SubmittedBy}" Header="Shelved By"  />
                <GridViewColumn DisplayMemberBinding="{Binding Path=OrderDate, StringFormat=MMM dd, yyyy}" Header="Date"  />
                <GridViewColumn DisplayMemberBinding="{Binding Path=CustomerTerms.Description}" Header="Order Terms"  />
                <GridViewColumn DisplayMemberBinding="{Binding Path=ShippingMethod.Description}" Header="Shipping"  />
                <GridViewColumn DisplayMemberBinding="{Binding Path=TotalPrice, StringFormat=c}" Header="Order Total"  />
            </GridView>
        </ListView.View>
    </ListView>

Et voici le code que j'ai:

 void ShelvedOrderList_DataContextChanged(object sender, System.Windows.DependencyPropertyChangedEventArgs e)
 {
     AddGrouping();
 }

 private void AddGrouping()
 {
     if ( lstShelvedOrders.ItemsSource == null)
     {
         return;
     }

     CollectionView myView = (CollectionView)CollectionViewSource.GetDefaultView(lstShelvedOrders.ItemsSource);
     PropertyGroupDescription groupDescription = new PropertyGroupDescription("Status");
     myView.GroupDescriptions.Add(groupDescription);
 }