private static void AddHandler(IInvocation invocation, INotifyInvocation propertyChangedInterceptor)
{
if (!Handlers.ContainsKey(invocation.InvocationTarget))
{
Handlers.Add(invocation.InvocationTarget, new Dictionary <string, PropertyChangedEventHandler>());
}
Handlers[invocation.InvocationTarget].Add(invocation.PropertyName(),
(o, e) => { propertyChangedInterceptor.Notify(invocation); });
((INotifyPropertyChanged)invocation.GetArgumentValue(0)).PropertyChanged +=
Handlers[invocation.InvocationTarget][invocation.PropertyName()];
}
