Castle.DynamicProxy2 并在运行时添加属性

发布于 2024-07-29 03:13:17 字数 1076 浏览 6 评论 0原文

我正在使用 Castle.DynamicProxy2 并且实例化我的代理，如下所示：

private static T GenerateProxy()
{   
    ArrayList addtlInterfaces = new ArrayList();

    addtlInterfaces.Add(typeof (INotifyPropertyChanged));
    addtlInterfaces.Add(typeof (EntityStatus));

    object entityProxy = ProxyGenerator.CreateClassProxy(typeof(T), 
                                                          addtlInterfaces.ToArray(typeof(Type)) as Type[],
                                                          ProxyGenerationOptions.Default,
                                                          new IInterceptor[] { new LazyInterceptor() });


    return (T)entityProxy;
}

我的 IEntityStatus 接口如下所示：

public interface  IEntityStatus
{
    bool IsDirty
    { get; set;}
}

我需要能够在运行时使用该属性，以便当我的 DTO 有属性更改事件时，该事件可以设置DTO 脏了。然而，因为它是一个接口并且没有明确的实现，所以我不知道如何做到这一点。为 get 和 set 方法创建委托是我想避免的一个选项。那么还有其他方法可以实现我想要实现的目标吗？

我意识到我可以设置所有活动 DTO 的集合，当属性更改事件在其中一个 DTO 上触发时，我可以更新该集合以显示该特定 DTO 是脏的，但我真的希望此信息成为代理 DTO 的一部分，以简化语法。

期待回复！

原文

I am using Castle.DynamicProxy2 and I am instantiating my proxy as such:

private static T GenerateProxy()
{   
    ArrayList addtlInterfaces = new ArrayList();

    addtlInterfaces.Add(typeof (INotifyPropertyChanged));
    addtlInterfaces.Add(typeof (EntityStatus));

    object entityProxy = ProxyGenerator.CreateClassProxy(typeof(T), 
                                                          addtlInterfaces.ToArray(typeof(Type)) as Type[],
                                                          ProxyGenerationOptions.Default,
                                                          new IInterceptor[] { new LazyInterceptor() });


    return (T)entityProxy;
}

My interface of IEntityStatus looks like such:

public interface  IEntityStatus
{
    bool IsDirty
    { get; set;}
}

I need to be able to use that property during run time so that when my DTO has a property changed event the event could set the DTO to dirty. However because it is an interface and has no explicit implementation I am at a loss as to how to do this. Creating a delegate for the get and set method is an option I would like to avoid. So is there another way to achieve what I am looking to achieve?

I realize I could set up a collection of all my active DTOs and when the property changed event fires on one of the DTOs I could update that collection to show that this particular DTO is dirty, but I would really like for this information to be a part of the proxied DTO for pure syntactic ease.

Look forward to responses!

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