ASP.NET标识默认的ApplicationUserManager是否实现IUserEmailStore?

问题描述

你好，

我一直在 UserValidator .我想为自己的项目重写它，以便能够更改错误消息.因此，我将该类复制到我的项目中.当我尝试使用它时-出现错误-'Microsoft.AspNet.Identity.UserManager<TUser,TKey>' does not contain a definition for 'GetEmailStore' and no extension method 'GetEmailStore' accepting a first argument of type 'Microsoft.AspNet.Identity.UserManager<TUser,TKey>' could be found (are you missing a using directive or an assembly reference?)在这一行

I was looking into ASP.NET Identity source, particulary, in UserValidator. I wanted to rewrite it for my own project, to be able to change error messages. So I copy that class into my project. When I try to use it - I get an error - 'Microsoft.AspNet.Identity.UserManager<TUser,TKey>' does not contain a definition for 'GetEmailStore' and no extension method 'GetEmailStore' accepting a first argument of type 'Microsoft.AspNet.Identity.UserManager<TUser,TKey>' could be found (are you missing a using directive or an assembly reference?)at this line

var email = await Manager.GetEmailStore().GetEmailAsync(user).ConfigureAwait(false);

我的问题是-如何在AspNet.Identity框架中工作，但在我的项目中不能工作? Manager似乎没有实现IUserEmailStore.

My question is - how can this work in AspNet.Identity framework, but not in my project? It doesn't look like that Manager is implementing IUserEmailStore.

我测试的所有内容都是VS2013中的默认MVC模板

All I tested, was default MVC template in VS2013

推荐答案

我终于找到了答案(经过大量搜索).

I finally found the answer (after searching a lot).

如果看到UserManager的源代码，则GetEmailStore()方法确实存在，但是是内部的.看看:

If you see the UserManager's source code, the GetEmailStore() method does exist, but is internal. Take a look:

    internal IUserEmailStore<TUser, TKey> GetEmailStore()
    {
        var cast = Store as IUserEmailStore<TUser, TKey>;
        if (cast == null)
        {
            throw new NotSupportedException(Resources.StoreNotIUserEmailStore);
        }
        return cast;
    }

因此，它仅存在于自己的Identity程序集的文件内部，这就是为什么它在那里工作而不在您的代码中出现的原因.

So, it exists only inside files of the own Identity assembly, that's why it works there and not in your code.

此外，您可以获得以下相同的结果:

Moreover, you can achieve the same result as follow:

var email = await Manager.GetEmailAsync(user.Id).ConfigureAwait(false);

单击此处查看UserManager的源代码

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