Style Group en-tête apparaît

Question

Mon GroupStyle tête apparaît jamais dans le combobox ....

Le groupement fonctionne très bien .... Il est seul un problème de liaison, mais ne suis pas en mesure de comprendre.

<ComboBox Height="23" Margin="33,45,125,0" Name="comboBox1" VerticalAlignment="Top" ItemsSource="{Binding}" > 
    <ComboBox.ItemTemplate> 
     <DataTemplate> 
      <Border Background="Red"> 
       <TextBlock Text="{Binding Path=value}" /> 
      </Border> 
     </DataTemplate> 
    </ComboBox.ItemTemplate> 
    <ComboBox.GroupStyle> 
     <GroupStyle> 
      <GroupStyle.HeaderTemplate> 
       <DataTemplate> 
        <StackPanel> 
         <TextBlock FontSize="12" FontWeight="Bold" Foreground="DarkGray"> 
          <Button Content="{Binding Path=Location}"/> 
          <TextBlock Text="{Binding Path=Location}" /> 
          <Button>bbbb</Button> 

         </TextBlock> 
         <ItemsPresenter/> 
        </StackPanel> 
       </DataTemplate> 
      </GroupStyle.HeaderTemplate> 
     </GroupStyle> 
    </ComboBox.GroupStyle> 
</ComboBox> 

et le code derrière

public class Store 
{ 
    public string Location { get; set; } 
    public string value { get; set; } 
} 

public partial class Window1 : Window 
{ 
    public Window1() 
    { 
     InitializeComponent(); 

     var myData = new ObservableCollection<Store> 
     { 
      new Store { Location = "Group1", value = "Item 1" }, 
      new Store { Location = "Bombay", value = "Item 2" }, 
      new Store { Location = "Group2", value = "Item 11" } 
     } 

     ICollectionView view = CollectionViewSource.GetDefaultView(myData); 
     view.GroupDescriptions.Add(new PropertyGroupDescription("Location")); 

     DataContext = myData; 
    } 
} 

Answer 1

Try changing the Binding Path from "Location" to "Name" 

<GroupStyle.HeaderTemplate> 
    ... 
    <Button Content="{Binding Path=Location}"/> 
    <TextBlock Text="{Binding Path=Location}" /> 
    ... 
<GroupStyle.HeaderTemplate> 

... comme ça ...

<GroupStyle.HeaderTemplate> 
    ... 
    <Button Content="{Binding Path=Name}"/> 
    <TextBlock Text="{Binding Path=Name}" /> 
    ... 
<GroupStyle.HeaderTemplate>