/// <summary>
/// Raises the <see cref="DictionaryChanged" /> event.
/// </summary>
/// <param name="e">
/// The <see cref="System.Collections.NotifyDictionaryChangedEventArgs<TKey,TValue>" /> instance
/// containing the event data.
/// </param>
protected virtual void OnDictionaryChanged(NotifyDictionaryChangedEventArgs <TKey, TValue> e)
{
EventHandler <NotifyDictionaryChangedEventArgs <TKey, TValue> > eventHandler = this.DictionaryChanged;
if (eventHandler != null)
{
eventHandler(this, e);
}
}
protected void OnDictionaryChanged(object sender, NotifyDictionaryChangedEventArgs <TVertex, EdgeCollection <TVertex, TEdge> > e)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
if (this.EdgeAdded != null)
{
// Raise the event for each edge that was added.
foreach (var entry in e.NewItems)
{
foreach (var edge in entry.Value)
{
this.OnEdgeAdded(new EdgeEventArgs <TVertex, TEdge>(edge));
}
}
}
if (this.VertexAdded != null)
{
// Raise the event for the vertex.
this.OnVertexAdded(new VertexEventArgs <TVertex>(e.NewItem.Key));
}
break;
case NotifyCollectionChangedAction.Remove:
if (this.EdgeRemoved != null)
{
// Raise the event for each edge that was removed.
foreach (var entry in e.OldItems)
{
foreach (var edge in entry.Value)
{
this.OnEdgeRemoved(new EdgeEventArgs <TVertex, TEdge>(edge));
}
}
}
if (this.VertexRemoved != null)
{
// Raise the event for the vertex.
this.OnVertexRemoved(new VertexEventArgs <TVertex>(e.OldItem.Key));
}
break;
}
}