How to refresh listbox in the windows Phone

Question

I have a listbox tuningList containing elements of the List<Tuning> tunings :

  private void LoadList() {
            foreach (Tuning tuning in tunings)
                tuningList.Items.Add(tuning);
        }

At certain point in the app I want to delete some elements in the tunings and update the listbox

 int selectionIndex = tuningList.SelectedIndex;
            if (selectionIndex >= 0) {
                pageTitle.Text = "Deleted tuning";
                tunings.RemoveAt(selectionIndex);
               // tuningList.Items.RemoveAt(selectionIndex);
                saveData(saver); //saves data to isolated storage 

            } 

but after that listbox does not update itself.

EDIT: I did not bind the listbox to the collection via XAML, I added the elements by the LoadList();

<ListBox x:Name="tuningList" Margin="8,0,8,152" Tap="tuningList_Tap"/>

EDIT2:

<ListBox x:Name="tuningList" Margin="8,0,8,152" ItemsSource=tunings.Items Tap="tuningList_Tap"/>

EDIT3:

<ListBox  x:Name="tuningList" Margin="8,0,8,152"  DataContext="{Binding RelativeSource={RelativeSource Self}}" ItemsSource="{Binding tunings}" Tap="tuningList_Tap"/>   

Answer 1

My piece of advice in this case would be binding your ListBox control to an ObservableCollection<T> , which will automatically notify the view when an item is added or removed due to the fact that it implements INotifyCollectionChanged .

You need to bind the collection to the ListBox . Instead of using LoadList set the ItemsSource in XAML. Otherwise nothing will happen.