protected override NotifyingObservableCollection <TestDataObject> CreateCollection(List <TestDataObject> items)
{
parent = new TestDataObjectImpl();
var result = new NotifyingObservableCollection <TestDataObject>(parent, "ParentProperty");
foreach (var i in items)
{
result.Add(i);
}
_hasCollectionChanged = false;
result.CollectionChanged += (sender, args) => { _hasCollectionChanged = true; };
_hasParentChanged = false;
parent.PropertyChanged += (sender, args) => { if (args.PropertyName == "ParentProperty")
{
_hasParentChanged = true;
}
};
if (_withBeginUpdate)
{
result.BeginUpdate();
_expectChanges = false;
}
return(result);
}