private void InstanceCollection_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
var comparer = new InstanceEqualityComparer();
if (e.Action.Equals(NotifyCollectionChangedAction.Add))
{
foreach (object item in e.NewItems)
{
var instance = item as Instance;
base.Children.Add(new InstanceTreeViewItemViewModel(instance, this));
}
}
else if (e.Action.Equals(NotifyCollectionChangedAction.Remove))
{
foreach (object item in e.OldItems)
{
var toRemove = new List <TreeViewItemViewModel>();
var instance = item as Instance;
foreach (TreeViewItemViewModel treeView in base.Children)
{
var instanceTreeView = treeView as InstanceTreeViewItemViewModel;
if (instanceTreeView != null)
{
if (comparer.Equals(instanceTreeView.Instance, instance))
{
toRemove.Add(treeView);
}
}
}
foreach (TreeViewItemViewModel treeView in toRemove)
{
base.Children.Remove(treeView);
}
}
}
else if (e.Action.Equals(NotifyCollectionChangedAction.Replace))
{
foreach (object item in e.NewItems)
{
var instance = item as Instance;
foreach (TreeViewItemViewModel treeView in base.Children)
{
var instanceTreeView = treeView as InstanceTreeViewItemViewModel;
if (instanceTreeView != null)
{
if (comparer.Equals(instanceTreeView.Instance, instance))
{
instanceTreeView.Instance = instance;
if (!instanceTreeView.HasNotBeenPopulated)
{
instanceTreeView.LoadChildren();
}
}
}
}
}
}
else if (e.Action.Equals(NotifyCollectionChangedAction.Reset))
{
base.Children.Clear();
}
}
private void InstanceCollection_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
var comparer = new InstanceEqualityComparer();
if (e.Action.Equals(NotifyCollectionChangedAction.Add))
{
foreach (var item in e.NewItems)
{
var instance = item as Instance;
base.Children.Add(new InstanceTreeViewItemViewModel(instance, this));
}
}
else if (e.Action.Equals(NotifyCollectionChangedAction.Remove))
{
foreach (var item in e.OldItems)
{
var toRemove = new List<TreeViewItemViewModel>();
var instance = item as Instance;
foreach (var treeView in base.Children)
{
var instanceTreeView = treeView as InstanceTreeViewItemViewModel;
if (instanceTreeView != null)
{
if (comparer.Equals(instanceTreeView.Instance, instance))
toRemove.Add(treeView);
}
}
foreach (var treeView in toRemove)
base.Children.Remove(treeView);
}
}
else if (e.Action.Equals(NotifyCollectionChangedAction.Replace))
{
foreach(var item in e.NewItems)
{
var instance = item as Instance;
foreach (var treeView in base.Children)
{
var instanceTreeView = treeView as InstanceTreeViewItemViewModel;
if (instanceTreeView != null)
{
if (comparer.Equals(instanceTreeView.Instance, instance))
{
instanceTreeView.Instance = instance;
if (!instanceTreeView.HasNotBeenPopulated)
instanceTreeView.LoadChildren();
}
}
}
}
}
else if (e.Action.Equals(NotifyCollectionChangedAction.Reset))
base.Children.Clear();
}
/// <summary>
/// Initializes new instance of <see cref="AbstractionEventHandlerLookup{TAbstraction,TImplementation}"/>.
/// </summary>
public AbstractionEventHandlerLookup()
{
var comparer = new InstanceEqualityComparer <EventHandler <TAbstraction> >();
_lookup = new Dictionary <EventHandler <TAbstraction>, AbstractionEventHandlerContext <TImplementation> >(comparer);
}
