postSharp,INotifyPropertyChanged的AOP植入

using System;using System.Collections.Generic;using System.ComponentModel;using System.Linq;using System.Text;using PostSharp.Aspects;using PostSharp.Aspects.Advices;using PostSharp.Extensibility;namespace U1City.Infrastructure.MVP{    [Serializable]    [IntroduceInterface(typeof(INotifyPropertyChanged), OverrideAction = InterfaceOverrideAction.Ignore)]    public class NotifyPropertyChangedAttribute : InstanceLevelAspect, INotifyPropertyChanged    {        [OnLocationSetValueAdvice, MulticastPointcut(Targets = MulticastTargets.Property)]        public void OnValueChanged(LocationInterceptionArgs args)        {            var current = args.GetCurrentValue();            if ((args.Value != null && (!args.Value.Equals(current)))                || (current != null && (!current.Equals(args.Value))))            {                args.ProceedSetValue();                this.OnRaisePropertyChange(args.Location.Name);            }        }        #region INotifyPropertyChanged 成员        [IntroduceMember(IsVirtual = true, OverrideAction = MemberOverrideAction.Ignore)]        public event PropertyChangedEventHandler PropertyChanged;        protected void OnRaisePropertyChange(string property)        {            if (PropertyChanged != null)            {                PropertyChanged.Invoke(this.Instance, new PropertyChangedEventArgs(property));            }        }        #endregion    }}