.net core 2.2 修改IdentityUser主键标识类型

.net core2.2，生成WebApi或者MVC项目后，Identity

1.增加ApplicationUser.cs文件，内容如下

   public class ApplicationUser : IdentityUser<int>
    {
 
    }
 
    public class ApplicationRole : IdentityRole<int>
    {
 
    }

2.修改ApplicationDbContext.cs文件，内容如下

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

3.修改Startup.cs，内容如下

        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运行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运行Update-Database

PM> Update-Database

6.打开Views\Shared\_LoginPartial.cshtml文件，找到如下内容

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

修改为：

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