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好吧，我在这里和那里阅读了很多关于为什么通过反射引发事件不可靠的帖子..我的问题是这个..我使用 PostSharp 定义一个接口，该接口允许类在属性更改之前和之后通知..

我NotifyAttribute创建的需要能够引发PropertyBeforeChange和PropertAfterChange事件.. 事情是，即使我可以检索事件，它GetRaiseMethod()返回 null，因此我无法引发所述事件.. 我该怎么做呢？

using PostSharp.Aspects;

namespace Core
{
    public delegate void PropertyBeforeChangeEventHandler(object sender, string sPropertyName, object oCurrentValue, ref object oProposedValue, ref bool bCancel);
    public delegate void PropertyAfterChangeEventHandler(object sender, string sPropertyName, object oOldValue, object oNewValue);

    public interface INotify
    {
        event PropertyBeforeChangeEventHandler PropertBeforeChange;
        event PropertyAfterChangeEventHandler PropertyAfterChange;
    }

    [Serializable]
    public sealed class NotifyAttribute : LocationInterceptionAspect, IInstanceScopedAspect
    {
        bool _NotifyBefore { get; set; }
        bool _NotifyAfter { get; set; }

        public NotifyAttribute() { _NotifyAfter = true; }
        public NotifyAttribute(bool bNotifyBefore, bool bNotifyAfter) { _NotifyBefore = bNotifyBefore; _NotifyAfter = bNotifyAfter; }

        public override void OnSetValue(LocationInterceptionArgs args)
        {
            INotify oNotify = args.Instance as INotify;
            if (oNotify == null) return;

            object oCurrentValue = args.GetCurrentValue();
            object oProposedValue = args.Value;
            if (object.Equals(oCurrentValue, oProposedValue)) return;
            bool bCancel = false;

            if (_NotifyBefore)
            {
                var oObj = args.Instance.GetType().GetEvent("PropertyBeforeChange");
                // RAISE EVENT HERE
            }
            if (bCancel) return;

            args.Value = oProposedValue;
            args.ProceedSetValue();
            if (_NotifyAfter)
            {
                var oObj = args.Instance.GetType().GetEvent("PropertyAfterChange");
                // RAISE EVENT HERE
            }
        }

        public object CreateInstance(AdviceArgs adviceArgs) { return this.MemberwiseClone(); }
        public void RuntimeInitializeInstance() { }
    }
}

定义了这个接口和这个属性，我可以按如下方式使用它..

    public class Test : INotify
    {
        public event PropertyBeforeChangeEventHandler PropertyBeforeChange;
        public event PropertyAfterChangeEventHandler PropertyAfterChange;

        [Notify]
        public string Name { get; set; }
    }

    Test oTest = new Test();
    oTest.PropertyBeforeChange += Test_PropertBeforeChange;
    oTest.PropertyAfterChange += Test_PropertyAfterChange;
    oTest.Name = "Asim";
    void Test_PropertBeforeChange(object sender, string sPropertyName, object oCurrentValue, ref object oProposedValue, ref bool bCancel)
    {
    }
    void Test_PropertyAfterChange(object sender, string sPropertyName, object oOldValue, object oNewValue)
    {
    }
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