Question

I have a two classes:

public class ScheduleViewModel : NotificationObject
{
    private ObservableCollection<RecordingsCollection> _collection

    public ObservableCollection<RecordingsCollection> Collection
    {
        get { return _collection; }
        set
        {
            _collection= value;
            RaisePropertyChanged(() => Collection);
        }
    }
}

public class RecordingsCollection : NotificationObject
{
    private ObservableCollection<Recording> _recordings;

    public ObservableCollection<Recording> Recordings
    {
        get { return _recordings; }
        set
        {
            _recordings = value;
            RaisePropertyChanged(() => Recordings);
        }
    }
}

At the momment I have only dummy data

var a = new ObservableCollection<Recording>();

a.Add(new Recording()
{
   Name = "Bla bla",
   Schedule = new Schedule()
   {
       Name = "bla"
   }
});

Collection.Add(new RecordingsCollection() { Recordings = a });

var b = new ObservableCollection<Recording>();

b.Add(new Recording()
{
   Name = "Bla bla",
   Schedule = new Schedule()
   {
       Name = "bla"
   }
});

Collection.Add(new RecordingsCollection() { Recordings = b });

I bind this all to an items control like this

<ItemsControl Grid.Row="1" ItemsSource="{Binding Collection}">
  <ItemsControl.ItemTemplate>
    <DataTemplate>
       <Grid>
         <telerikGridView:RadGridView
             ItemsSource="{Binding ElementName=RecordingDataPager, Path=PagedSource}">
             <telerikGridView:RadGridView.Columns>
                 <telerikGridView:GridViewDataColumn Header="Schedule" DataMemberBinding="{Binding Path=Recordings.Schedule.Name}"/>
                 </telerikGridView:RadGridView.Columns>
             </telerikGridView:RadGridView>
         <telerik:RadDataPager x:Name="RecordingDataPager"
                  Source="{Binding RecordingsCollection, Mode=TwoWay}"/>
        </Grid>
     </DataTemplate>
   </ItemsControl.ItemTemplate>
 </ItemsControl>

Everything is fired fine (i.e. i see two datapagers which means that it sees two entries) except for the get method of the Recordings property in RecordingsCollection
Any ideas?

Edit
Found the issuse… Instead of binding to RecordingsCollection I should have bound to Recordings… Now everything works fine… Hope this helps someone in future 🙂

Answer 1

This is the answers

<ItemsControl Grid.Row="1" ItemsSource="{Binding Collection}">   
  <ItemsControl.ItemTemplate>   
   <DataTemplate>   
    <Grid>   
     <telerikGridView:RadGridView   
         ItemsSource="{Binding ElementName=RecordingDataPager, Path=PagedSource}">   
         <telerikGridView:RadGridView.Columns>   
             <telerikGridView:GridViewDataColumn Header="Schedule" DataMemberBinding="{Binding Path=Schedule.Name}"/>   
             </telerikGridView:RadGridView.Columns>   
         </telerikGridView:RadGridView>   
     <telerik:RadDataPager x:Name="RecordingDataPager"   
              Source="{Binding Recordings, Mode=TwoWay}"/>   
    </Grid>   
 </DataTemplate>