GridView Hierarchy Data Grid

[Leo]

<telerik:RadGridView x:Name="RadGridView1" ItemsSource="{Binding}" Grid.Row="1" GroupPanelForeground="Red" >
            <telerik:RadGridView.ChildTableDefinitions>
                <telerik:GridViewTableDefinition>
                    <telerik:GridViewTableDefinition.Relation>
                        <telerik:PropertyRelation ParentPropertyName="Students"/>
                    </telerik:GridViewTableDefinition.Relation>
                </telerik:GridViewTableDefinition>
            </telerik:RadGridView.ChildTableDefinitions>
        </telerik:RadGridView>

In my Linq to SQL Class I have Students Table and Subjects.

Students field has Student ID, StudentFN, StudentLN while Subjects has SubjectID, Subject, Professor, StudentID.

I have associated the two student id.

My .xaml.cs is 

public partial class MainWindow : Window
    {
        ObservableCollection<MyObject> _MyObject = new ObservableCollection<MyObject>();
        DataContextDataContext context1 = new DataContextDataContext();
        public MainWindow()
        {
            InitializeComponent();
            DataContext = new ObservableCollection<MyObject>();
            RadGridView1.Filtered+=new EventHandler<GridViewFilteredEventArgs>(RadGridView1_Filtered);
            foreach (var p in context1.Students)
            {
                _MyObject.Add(new MyObject { ID = p.StudentID, Name = p.StudentFN });
            }
        }

        void RadGridView1_Filtered(object sender, GridViewFilteredEventArgs e)
        {
            RadGridView1.ItemsSource = _MyObject;
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {

        }
    }

    public class MyObject
    {
        public int ID { get; set; }
        public string Name { get; set; }
    }

I tried running the gridview but it doesn't show the level 2 data grid for the each record nor the column headers of the subject table.

[Vlad]

Hi,

 You should have Students property for MyObject which such configuration. 

Greetings,
Vlad
the Telerik team

[Leo]

What do you mean?