protected virtual void SetItemsSource(IEnumerable value)
{
if (Equals(_itemsSource, value))
{
return;
}
if (_subscription != null)
{
_subscription.Dispose();
_subscription = null;
}
_itemsSource = value;
if (_itemsSource != null && !(_itemsSource is IList))
{
MvxBindingTrace.Trace(MvxTraceLevel.Warning,
@"Binding to IEnumerable rather than IList - this can be inefficient,
especially for large lists");
}
var newObservable = _itemsSource as INotifyCollectionChanged;
if (newObservable != null)
{
_subscription = newObservable.WeakSubscribe(OnItemsSourceCollectionChanged);
}
NotifyDataSetChanged();
}
public void SetInternalItemsSource(IEnumerable itemsSourceEnumerable)
{
if (ReferenceEquals(_itemsSource, itemsSourceEnumerable) && !ReloadOnAllItemsSourceSets)
{
return;
}
_subscription?.Dispose();
_subscription = null;
_itemsSource = itemsSourceEnumerable ?? Enumerable.Empty <object>();
if (_itemsSource != null && !(_itemsSource is IList))
{
MvxBindingTrace.Trace(MvxTraceLevel.Warning,
"Binding to IEnumerable rather than IList - this can be inefficient, especially for large lists");
}
var newObservable = _itemsSource as INotifyCollectionChanged;
if (newObservable != null)
{
_subscription = newObservable.WeakSubscribe(OnItemsSourceCollectionChanged);
}
OnItemsSourceCollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
}