更改用户主键ASP.NET身份

为了实现int主键我跟着这篇文章：https://www.asp.net/identity/overview/extensibility/change-primary-key-for-users-in-aspnet-identity 更改用户主键ASP.NET身份

它，但编译在启动时它给了我这个错误消息：

类型的异常mscorlib.dll中出现'System.FormatException'，但未在用户代码中处理
附加信息：输入字符串格式不正确。

代码：

public void ConfigureAuth(IAppBuilder app) 
    { 
     // Configure the db context, user manager and signin manager to use a single instance per request 
     app.CreatePerOwinContext(ApplicationDbContext.Create); 
     app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create); 
     app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.Create); 

     // Enable the application to use a cookie to store information for the signed in user 
     // and to use a cookie to temporarily store information about a user logging in with a third party login provider 
     // Configure the sign in cookie 
     app.UseCookieAuthentication(new CookieAuthenticationOptions 
     { 
      AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie, 
      LoginPath = new PathString("/Account/Login"), 
      Provider = new CookieAuthenticationProvider 
      { 
       OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser, int>(
       validateInterval: TimeSpan.FromMinutes(30), 
       regenerateIdentityCallback: (manager, user) => 
        user.GenerateUserIdentityAsync(manager), 
================================================================================ 
        getUserIdCallback: (id) => (id.GetUserId<int>() <<===== THIS IS WHERE I GET THE ERROR MESSAGE)) 
================================================================================ 

      } 
     });    
     app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie); 

     // Enables the application to temporarily store user information when they are verifying the second factor in the two-factor authentication process. 
     app.UseTwoFactorSignInCookie(DefaultAuthenticationTypes.TwoFactorCookie, TimeSpan.FromMinutes(5)); 

     // Enables the application to remember the second login verification factor such as phone or email. 
     // Once you check this option, your second step of verification during the login process will be remembered on the device where you logged in from. 
     // This is similar to the RememberMe option when you log in. 
     app.UseTwoFactorRememberBrowserCookie(DefaultAuthenticationTypes.TwoFactorRememberBrowserCookie); 

     // Uncomment the following lines to enable logging in with third party login providers 
     //app.UseMicrosoftAccountAuthentication(
     // clientId: "", 
     // clientSecret: ""); 

     //app.UseTwitterAuthentication(
     // consumerKey: "", 
     // consumerSecret: ""); 

     //app.UseFacebookAuthentication(
     // appId: "", 
     // appSecret: ""); 

     //app.UseGoogleAuthentication(new GoogleOAuth2AuthenticationOptions() 
     //{ 
     // ClientId = "", 
     // ClientSecret = "" 
     //}); 
    }

有谁知道问题出在哪里？

来源

2016-12-04 dsb

'输入字符串的格式不正确'表示从id传入的字符串值可能不是有效的数字。您可以使用'getUserIdCallback：（id）=>（int.Parse（id.GetUserId（）））'将它解析为表的PK的整数值。 –

谢谢@TetsuyaYamamoto这给了我同样的错误信息。 – dsb

尝试从浏览器cookie存储中删除/清除与您的网站/本地主机相关的所有Cookie，我之前完成了此操作，并且突然修复了所有内容。 –

山本哲也是对的。问题是我拿了一个干净的项目，运行它，并注册为一个用户，而主键是GUID。然后我执行所需的所有更改，以使主键变为整数。然后，当我运行它时，cookie被发送到OnValidateIdentity，并在那里崩溃，因为主键是GUID。我清理了所有缓存，一切按预期工作。

来源

2016-12-06 22:00:12 dsb

更改用户主键ASP.NET身份

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