ASP.NET 找不到 IserviceCollection AddIdentity

Question

I have a situation where I want to change the password length of ASP.NET Identity user (database-first) to lets say 4. After much research, I found I can do it from the start up class with:

public void ConfigureServices(IServiceCollection services)
{
    services.AddIdentity<ApplicationUser, IdentityRole>(options =>
    {
        options.Password.RequireDigit = false;
        options.Password.RequiredLength = 4;
    })
    .AddEntityFrameworkStores<ApplicationDbContext>()
    .AddDefaultTokenProviders();
}

I have downloaded the packages Microsoft.Framework.DependencyInjection and Microsoft.Extensions.DependencyInjection but still AddIdentity cannot be found

Answer 1

AddIdentity and it's related extension methods are part of ASP.NET Core Identity, which resides on the NuGet package Microsoft.AspNetCore.Identity .

AddEntityFrameworkStores is part of EntityFrameworkCore for ASP.NET Core Identity package Microsoft.AspNetCore.Identity.EntityFrameworkCore

Answer 2

你需要添加这个对我Miscroft.AspNetCore.Identity.UI金块包Miscroft.AspNetCore.Identity.UI

Answer 3

Also you have to make sure you pick the right version for both.