实现自定义身份和在的IPrincipal MVC [英] Implementing a Custom Identity and IPrincipal in MVC

问题描述

我有一个基本的MVC 2测试版的应用程序，我想实现一个自定义的身份和校长课程。

I have a basic MVC 2 beta app where I am trying to implement a custom Identity and Principal classes.

我已经创建了我的班了实现的IIdentity和IPrincipal的接口，实例化他们，然后在Global.asax的Application_AuthenticateRequest分配CustomPrincipal对象我Context.User。

I have created my classes that implement the IIdentity and IPrincipal interfaces, instantiated them and then assigned the CustomPrincipal object to my Context.User in Application_AuthenticateRequest of the Global.asax.

这所有的成功和物体看起来不错。当我开始渲染视图现在页面失败。第一次失败是在下面的行code的默认LogoOnUserControl观点：

This all succeeds and the objects look good. When I begin to render the Views the pages are now failing. The first failure is in the default LogoOnUserControl view on the following line of code:

 [ <%= Html.ActionLink("Log Off", "LogOff", "Account") %> ]

如果我拉了这一点，它失败，那么在code不同的Html.ActionLink行。

If I pull this out it then fails on a different "Html.ActionLink" line of code.

我收到的错误是：

类型的例外
  System.Runtime.Serialization.SerializationException
  发生在WebDev.WebHost40.dll但
  在用户code没有处理

An exception of type 'System.Runtime.Serialization.SerializationException' occurred in WebDev.WebHost40.dll but was not handled in user code

其他信息：类型不
  解决的会员
  Model.Entities.UserIdentity，模型，
  版本= 1.0.0.0，文化=中立，
  公钥=空'。

Additional information: Type is not resolved for member 'Model.Entities.UserIdentity,Model, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.

有没有办法，我需要我的身份来实现，以使用MVC自定义标识一些额外的属性？我试图执行[序列化（）]在Identity类，但它似乎并没有产生影响。

Is there some additional properties that I need to implement in my Identity in order to use a custom Identity in MVC? I tried to implement [Serializable()] in the Identity class but it didn't seem to have an impact.

更新：
我试过的实现这个3-4替代方式，但仍失败，出现同样的错误。如果我使用GenericIdentity /的GenericPrincipal类直接它没有错误。

UPDATE: I've tried 3-4 alternate ways of implemented this but still fails with the same error. If I use GenericIdentity/GenericPrincipal classes directly it does not error.

GenericIdentity ident = new GenericIdentity("jzxcvcx");
GenericPrincipal princ = new GenericPrincipal(ident, null);
Context.User = princ;

但是，这让我无处因为我试图用CustomIdentity持有几个属性。如果我实现的IIdentity / IPrincipal的接口或继承GenericIdentity /的GenericPrincipal我CustomIdentity / CustomPrincipal失败上面原来的错误。

But this gets me nowhere since I am trying to use the CustomIdentity to hold a couple of properties. If I implement the IIdentity/IPrincipal interfaces or inherit GenericIdentity/GenericPrincipal for my CustomIdentity/CustomPrincipal it fails with the original error above.

推荐答案

我想通这一个从网上一点点帮助:)的技巧是，你必须实现在你的类ISerializable接口，实现IIdentity的。我希望这有助于挽救别人一些时间：）

I figured this one out with a little help from the web :) The trick is that you have to implement the ISerializable interface in your class that implements IIdentity. I hope this helps save someone else some time :)

类声明：

[Serializable]
    public class ForumUserIdentity : IIdentity, ISerializable

的实施ISerializable的：

#region ISerializable Members

        public void GetObjectData(SerializationInfo info, StreamingContext context)
        {
            if (context.State == StreamingContextStates.CrossAppDomain)
            {
                GenericIdentity gIdent = new GenericIdentity(this.Name, this.AuthenticationType);
                info.SetType(gIdent.GetType());

                System.Reflection.MemberInfo[] serializableMembers;
                object[] serializableValues;

                serializableMembers = FormatterServices.GetSerializableMembers(gIdent.GetType());
                serializableValues = FormatterServices.GetObjectData(gIdent, serializableMembers);

                for (int i = 0; i < serializableMembers.Length; i++)
                {
                    info.AddValue(serializableMembers[i].Name, serializableValues[i]);
                }
            }
            else
            {
                throw new InvalidOperationException("Serialization not supported");
            }
        }

        #endregion

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