private static void SignalAttachedPropertyChanged <TOwner>(TOwner owner, DependencyPropertyChangedEventArgs args) where TOwner : class
{
var oldValue = args.OldValue as AsyncRequest;
var newValue = args.NewValue as AsyncRequest;
var propertyName = args.Property.Name;
SignalRegistrationService <TOwner> .UpdateInstanceValue(owner, oldValue, newValue, propertyName);
}
