.net core 2.2 修改IdentityUser主鍵標識類型

.net core2.2，生成WebApi或者MVC項目後，Identity

1.增長ApplicationUser.cs文件，內容以下

   public class ApplicationUser : IdentityUser<int>
    {

    }

    public class ApplicationRole : IdentityRole<int>
    {

    }

2.修改ApplicationDbContext.cs文件，內容以下

    public class ApplicationDbContext : IdentityDbContext<ApplicationUser, ApplicationRole, int>
    {
        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
            : base(options)
        {

        }
    }

3.修改Startup.cs，內容以下

        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            services.AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(
                    Configuration.GetConnectionString("DriverBase")));
            services.AddDefaultIdentity<ApplicationUser>()
                .AddDefaultUI(UIFramework.Bootstrap4)
                .AddEntityFrameworkStores<ApplicationDbContext>();

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
        }

 4.在PM運行Add-Migration CreateIdentitySchema

PM> Add-Migration CreateIdentitySchema
　　Microsoft.EntityFrameworkCore.Infrastructure[10403]
　　Entity Framework Core 2.2.1-servicing-10028 initialized 'ApplicationDbContext' using provider 'Microsoft.EntityFrameworkCore.SqlServer' with options: None
　　To undo this action, use Remove-Migration.

5.在PM運行Update-Database

PM> Update-Database

6.打開Views\Shared\_LoginPartial.cshtml文件，找到以下內容

@using Microsoft.AspNetCore.Identity
@inject SignInManager<IdentityUser> SignInManager
@inject UserManager<IdentityUser> UserManager

修改成：

@using Microsoft.AspNetCore.Identity
@inject SignInManager<ApplicationUser> SignInManager
@inject UserManager<ApplicationUser> UserManager