public bool AddDataServiceCollection(object source, string sourceProperty, object collection, string collectionEntitySet)
{
if (this.graph.ExistsVertex(collection))
{
return(false);
}
Vertex vertex = this.graph.AddVertex(collection);
vertex.IsDataServiceCollection = true;
vertex.EntitySet = collectionEntitySet;
ICollection is2 = collection as ICollection;
if (source != null)
{
vertex.Parent = this.graph.LookupVertex(source);
vertex.ParentProperty = sourceProperty;
this.graph.AddEdge(source, collection, sourceProperty);
Type collectionEntityType = BindingUtils.GetCollectionEntityType(collection.GetType());
if (!typeof(INotifyPropertyChanged).IsAssignableFrom(collectionEntityType))
{
throw new InvalidOperationException(System.Data.Services.Client.Strings.DataBinding_NotifyPropertyChangedNotImpl(collectionEntityType));
}
typeof(BindingGraph).GetMethod("SetObserver", false, false).MakeGenericMethod(new Type[] { collectionEntityType }).Invoke(this, new object[] { is2 });
}
else
{
this.graph.Root = vertex;
}
this.AttachDataServiceCollectionNotification(collection);
foreach (object obj2 in is2)
{
this.AddEntity(source, sourceProperty, obj2, collectionEntitySet, collection);
}
return(true);
}
public bool AddCollection(
object source,
string sourceProperty,
object collection,
string collectionEntitySet)
{
Debug.Assert(collection != null, "'collection' can not be null");
Debug.Assert(
BindingEntityInfo.IsDataServiceCollection(collection.GetType()),
"Argument 'collection' must be an DataServiceCollection<T> of entity type T");
if (this.graph.ExistsVertex(collection))
{
return(false);
}
Vertex collectionVertex = this.graph.AddVertex(collection);
collectionVertex.IsCollection = true;
collectionVertex.EntitySet = collectionEntitySet;
ICollection collectionItf = collection as ICollection;
if (source != null)
{
collectionVertex.Parent = this.graph.LookupVertex(source);
collectionVertex.ParentProperty = sourceProperty;
this.graph.AddEdge(source, collection, sourceProperty);
Type entityType = BindingUtils.GetCollectionEntityType(collection.GetType());
Debug.Assert(entityType != null, "Collection must at least be inherited from DataServiceCollection<T>");
if (!typeof(INotifyPropertyChanged).IsAssignableFrom(entityType))
{
throw new InvalidOperationException(Strings.DataBinding_NotifyPropertyChangedNotImpl(entityType));
}
typeof(BindingGraph)
.GetMethod("SetObserver", BindingFlags.Instance | BindingFlags.NonPublic)
.MakeGenericMethod(entityType)
.Invoke(this, new object[] { collectionItf });
}
else
{
this.graph.Root = collectionVertex;
}
Debug.Assert(
collectionVertex.Parent != null || collectionVertex.IsRootCollection,
"If parent is null, then collectionVertex should be a root collection");
this.AttachCollectionNotification(collection);
foreach (var item in collectionItf)
{
this.AddEntity(
source,
sourceProperty,
item,
collectionEntitySet,
collection);
}
return(true);
}