/// <summary>
/// Initializes a new instance of the <see cref="EntityList{T}"/> with the specified
/// <paramref name="source"/>
/// </summary>
/// <param name="entitySet">The
/// <see cref="OpenRiaServices.DomainServices.Client.EntitySet{T}"/> that backs this list. All
/// items added or removed from this list will also be added or removed from the backing
/// <see cref="EntitySet"/>.
/// </param>
/// <param name="source">The source collection used to populate this list</param>
public EntityList(EntitySet <T> entitySet, IEnumerable <T> source)
{
if (entitySet == null)
{
throw new ArgumentNullException("entitySet");
}
this._entitySet = entitySet;
this._weakCollectionChangedLister =
WeakCollectionChangedListener.CreateIfNecessary(this._entitySet, this);
this.Source = source;
}
private void DisconnectListener()
{
this.indexer = null;
if (this.collectionChangedListener != null)
{
this.collectionChangedListener.Disconnect();
this.collectionChangedListener = null;
}
if (this.propertyListener != null)
{
this.propertyListener.Disconnect();
this.propertyListener = null;
}
}
private static void OnSpecialSlotsSourcePropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
MultiDayViewSettings settings = (MultiDayViewSettings)sender;
INotifyCollectionChanged oldSlotsSource = args.OldValue as INotifyCollectionChanged;
if (oldSlotsSource != null)
{
var listener = settings.specialSlotsCollectionChangedListener;
if (listener != null)
{
listener.Detach();
listener = null;
}
int count = settings.specialSlotsPropertyChangedListeners != null ? settings.specialSlotsPropertyChangedListeners.Count : 0;
while (count > 0)
{
var propertyListener = settings.specialSlotsPropertyChangedListeners[0];
settings.specialSlotsPropertyChangedListeners.RemoveAt(0);
propertyListener.Detach();
propertyListener = null;
count--;
}
}
INotifyCollectionChanged newSlotsSource = args.NewValue as INotifyCollectionChanged;
if (newSlotsSource != null)
{
settings.specialSlotsCollectionChangedListener = WeakCollectionChangedListener.CreateIfNecessary(newSlotsSource, settings);
foreach (Slot slot in (IEnumerable <Slot>)newSlotsSource)
{
var listener = WeakPropertyChangedListener.CreateIfNecessary(slot, settings);
if (listener != null)
{
settings.specialSlotsPropertyChangedListeners.Add(listener);
}
}
}
if (oldSlotsSource != null && settings.IsOwnerLoaded)
{
settings.owner.timeRulerLayer.RecycleSlots((IEnumerable <Slot>)oldSlotsSource);
}
settings.Invalide(MultiDayViewUpdateFlag.AffectsSpecialSlots);
}
private bool ConnectToIndexerInSource()
{
if (this.source == null || this.source == DependencyProperty.UnsetValue)
{
return(false);
}
this.indexer = this.FindIndexerProperty(this.source);
if (this.indexer == null)
{
return(false);
}
if (this.propertyListener == null)
{
this.propertyListener = IndexerListener.CreateListener(this, this.source, this.index, this.intIndexer, this.indexer, this.listenToChanges);
}
if (this.listenToChanges)
{
this.collectionChangedListener = WeakCollectionChangedListener.CreateIfNecessary(this.source, this);
}
return(true);
}
private void DisconnectListener()
{
this.indexer = null;
if (this.collectionChangedListener != null)
{
this.collectionChangedListener.Disconnect();
this.collectionChangedListener = null;
}
if (this.propertyListener != null)
{
this.propertyListener.Disconnect();
this.propertyListener = null;
}
}
private bool ConnectToIndexerInSource()
{
if (this.source == null || this.source == DependencyProperty.UnsetValue)
{
return false;
}
this.indexer = this.FindIndexerProperty(this.source);
if (this.indexer == null)
{
return false;
}
if (this.propertyListener == null)
{
this.propertyListener = IndexerListener.CreateListener(this, this.source, this.index, this.intIndexer, this.indexer, this.listenToChanges);
}
if (this.listenToChanges)
{
this.collectionChangedListener = WeakCollectionChangedListener.CreateIfNecessary(this.source, this);
}
return true;
}
