protected override void RemoveItem(int index)
{
MainApplicationListViewModel main = this[index] as MainApplicationListViewModel;
if (main != null)
{
main.PropertyChanged -= OnMainPropertyChanged;
}
base.RemoveItem(index);
}
protected override void InsertItem(int index, IPreferedApplicationViewModel item)
{
base.InsertItem(index, item);
MainApplicationListViewModel main = item as MainApplicationListViewModel;
if (main != null)
{
main.PropertyChanged += OnMainPropertyChanged;
}
}
private void OnMainPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == nameof(MainApplicationListViewModel.IsEnabled))
{
MainApplicationListViewModel main = (MainApplicationListViewModel)sender;
if (main.IsEnabled)
{
base.InsertItem(Count, main);
}
else
{
base.RemoveItem(IndexOf(main));
}
}
}