static void OnItemsSourceChanged(Control sender, AttachedPropertyChangedEventArgs<IEnumerable> e)
{
IItemsSourceFeature feature = sender.GetItemsSourceFeature();
if(feature != null) {
IEnumerable dataSource = (e.NewValue is INotifyCollectionChanged && e.NewValue is IList) ? BindingListAdapter.CreateFromList((IList)e.NewValue) : e.NewValue;//TODO
feature.SetDataSource(sender, dataSource.With(x => new BindingSource() { DataSource = dataSource }));
}
}
static IEnumerable<AttachedPropertyBase> GetAttachedProperties(Control control)
{
yield return DataContextProvider.DataContextProperty;
yield return CommandProvider.CommandProperty;
yield return CommandProvider.CommandParameterProperty;
if(control.GetItemsSourceFeature() != null) {
yield return ItemsSourceProvider.ItemsSourceProperty;
yield return ItemsSourceProvider.SelectedItemProperty;
}
}
internal static bool CanSerializeProperty(Control control, PropertyDescriptor property)
{
IItemsSourceFeature feature = control.GetItemsSourceFeature();
if(feature != null) {
if(control.GetItemsSource() == null)
return true;
return !feature.GetItemsSourceAffectedProperties().Any(x => (x == property.Name));
}
return true;
}
static void OnSelectedItemChanged(Control sender, AttachedPropertyChangedEventArgs<object> e)
{
IItemsSourceFeature feature = sender.GetItemsSourceFeature();
if(feature != null) {
Action<Control> selectionChangedHandler = sender.GetValue(HandlerProperty);
if(selectionChangedHandler == null) {
selectionChangedHandler = OnSelectionChanged;
sender.SetValue(HandlerProperty, selectionChangedHandler);
feature.AddSelectionChangedCallback(sender, selectionChangedHandler);
}
feature.SetSelectedItem(sender, e.NewValue);
sender.SetSelectedItem(feature.GetSelectedItem(sender));
//TODO test recursion or add assert
}
}
static void OnSelectionChanged(Control sender)
{
IItemsSourceFeature feature = sender.GetItemsSourceFeature();
sender.SetSelectedItem(feature.GetSelectedItem(sender));
//TODO test recursion or add assert
}