c# - OWIN/Identity 2.0 - 将 pk 从字符串更改为 GUID

Question

我试图从数据库 nvarchar(128) -> uniqueidentifier 和字符串 -> Guid 的代码中更改 asp.net 身份的 pk 系统。按照这个 article基于将 pk 更改为 int32，我只有一个问题似乎无法解决。

在我的 Startup.Auth.cs 类中，我更改了以下内容

app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
            LoginPath = new PathString("/Account/Login"),
            Provider = new CookieAuthenticationProvider
            {   //error on the line below
                OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser, Guid>(TimeSpan.FromMinutes(20), (manager, user) => user.GenerateUserIdentityAsync(manager), (identity) => Guid.Parse(identity.GetUserId()))
            }
        });  

我遇到了两个我无法理解的错误。 Identity 的结构让我对这么多泛型感到困惑。我知道它说它收到了错误的参数类型，但我不知道如何解决这个问题。

错误

Error 1 The best overloaded method match for 'Microsoft.AspNet.Identity.Owin.SecurityStampValidator.OnValidateIdentity(System.TimeSpan, System.Func>, System.Func)' has some invalid arguments

Error 2 Argument 2: cannot convert from 'lambda expression' to 'System.Func>'

谁能提供一点见解？

Answer 1

  app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
            LoginPath = new PathString("/_layouts/Account/Login"),
            Provider = new CookieAuthenticationProvider
            {
                // Enables the application to validate the security stamp when the user logs in.
                // This is a security feature which is used when you change a password or add an external login to your account.  
                OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, WebUser,Guid>(
                    validateInterval: TimeSpan.FromMinutes(30),
                     regenerateIdentityCallback: (manager, user) => 
                    user.GenerateUserIdentityAsync(manager), 
                getUserIdCallback:(id)=>(Guid.Parse(id.GetUserId())))

            }
        });