private void Monitor()
{
if (listener != null)
{
listener.DeepCollectionChanged -= CollectionListener_DeepCollectionChanged;
listener.Dispose();
this.Children.Clear();
listener = null;
}
if (this.BindingContext != null && string.IsNullOrEmpty(this.ItemsSourceSelector) == false)
{
listener = ChangeListener.Create(this.BindingContext, this.ItemsSourceSelector, this.propsToIgnoreList);
listener.DeepCollectionChanged += CollectionListener_DeepCollectionChanged;
if (this.BindingContext is INotifyPropertyChanged)
{
CollectionListener_DeepCollectionChanged(null, new DeepCollectionChangedEventArg(this.ItemsSourceSelector, this.BindingContext, null));
}
listener.Subscribe();
}
}