DictionaryAdapterBase
public abstract class DictionaryAdapterBase : IDictionaryAdapter, IDictionaryEdit, IEditableObject, IRevertibleChangeTracking, IChangeTracking, IDictionaryNotify, INotifyPropertyChanging, INotifyPropertyChanged, IDictionaryCreate, IDictionaryValidate, IDataErrorInfo
protected bool NotifyPropertyChanging(PropertyDescriptor property, object oldValue, object newValue)
protected TrackPropertyChangeScope TrackPropertyChange(PropertyDescriptor property, object oldValue, object newValue)