public MultiViewModel()
{
var collection = new SynchronizedNotifiableCollection <TViewModel>();
var list = ToolkitServiceProvider.TryDecorate(this, collection);
Should.BeOfType <INotifiableCollection <TViewModel> >(list, "DecoratedItemsSource");
_itemsSource = (INotifiableCollection <TViewModel>)list;
collection.AfterCollectionChanged = OnViewModelsChanged;
_propertyChangedWeakEventHandler = ReflectionExtensions.MakeWeakPropertyChangedHandler(this, (model, o, arg3) => model.OnItemPropertyChanged(o, arg3));
var weakReference = ToolkitExtensions.GetWeakReference(this);
_closeViewModelWeakHandler = (dispatcher, vm, arg3) =>
{
var self = (MultiViewModel <TViewModel>)weakReference.Target;
return(self?.CloseViewModel(dispatcher, vm, arg3) ?? Empty.FalseTask);
};
DisposeViewModelOnRemove = ApplicationSettings.MultiViewModelDisposeViewModelOnRemove;
CloseViewModelsOnClose = ApplicationSettings.MultiViewModelCloseViewModelsOnClose;
}
public void SetOriginalItemsSource <TItemsSource>(TItemsSource originalItemsSource)
where TItemsSource : IList <T>, INotifyCollectionChanged, IList
{
EnsureNotDisposed();
Should.NotBeNull(originalItemsSource, nameof(originalItemsSource));
INotifyCollectionChanging collectionChanging;
if (_originalData != null)
{
collectionChanging = _originalData as INotifyCollectionChanging;
if (collectionChanging != null)
{
collectionChanging.CollectionChanging -= RaiseCollectionChanging;
}
((INotifyCollectionChanged)_originalData).CollectionChanged -= RaiseCollectionChanged;
if (_originalData.Count != 0)
{
originalItemsSource.AddRange(_originalData, true);
}
}
_filterableItemsSource = new FilterableNotifiableCollection <T>(originalItemsSource);
collectionChanging = originalItemsSource as INotifyCollectionChanging;
if (collectionChanging != null)
{
collectionChanging.CollectionChanging += RaiseCollectionChanging;
}
originalItemsSource.CollectionChanged += RaiseCollectionChanged;
_originalData = originalItemsSource;
var list = ToolkitServiceProvider.TryDecorate(this, FilterableItemsSource);
Should.BeOfType <INotifiableCollection <T> >(list, "DecoratedItemsSource");
_itemsSource = (INotifiableCollection <T>)list;
UpdateFilter();
OnPropertyChanged(nameof(ItemsSource));
OnPropertyChanged(nameof(OriginalItemsSource));
RaiseItemsSourceChanged(_itemsSource);
}
