Binding to class

[Oleksandr]

Hello,
 i have a simple model.

 class A
{
    public string Title {get;set;}
    public string Content {get;set;}
}

in VM i make a List<A> ExpanderMenu and bind it to the RAdPanelBar, Title is binding ok,
but when i click to expand the PanelBar its doesn't expand.
Who to expand it???

<DataTemplate x:Key="PanelBarItemTemplate">
           
                <TextBlock Text="{Binding Content}" />
           
        </DataTemplate 
>

 <telerik:HierarchicalDataTemplate x:Key="ExpanderMenuItemTemplate"


                                          ItemTemplate="{StaticResource PanelBarItemTemplate}"
                                          ItemsSource="{Binding}"
                                          >

            <TextBlock Text="{Binding Title}" />

        </telerik:HierarchicalDataTemplate>


<telerik:RadPanelBar x:Name="Menu"
                                 Grid.Row="2"
                                 ExpandMode="Multiple"
                                 IsEditable="False"
                                 IsExpandOnSingleClickEnabled="True"
                                 ItemTemplate="{StaticResource ExpanderMenuItemTemplate}"
                                 ItemsSource="{Binding ExpanderMenu}"

[Tina Stancheva]

Hi Oleksandr,

The RadPanelBarItems derive from the RadTreeViewItem class thus both controls expect a hierarchical structure. This means that the RadPanelBarItem exposes Items/ItemsSource properties and the data item that describes the RadPanelBarItem is expected to have the same structure. But I noticed that your class A implementation doesn't have a collection of items to be displayed inside each RadPanelBarItem Items property.

Usually the RadPanelBar control is used to display detailed list of information for the root-level items as demonstrated in this tutorial.

But in case you need to display a flat collection of data in the RadPanelBar control, you can use a -converter when you bind the ItemsSource property of the first-level items' HierarchicalDataTemplate as demonstrated in the attached sample.

Regards,
Tina Stancheva
the Telerik team