//var dataS = childNode.Attributes.First(x => x.Name == "data-s");
                    var dataS = childNode.Attributes.First(x => x.Name == "ng-click");
                    var startTime = new Regex("(?s)start=(.+?)'").Matches(dataS.Value)
                                                         .OfType<Match>()
                                                         .First()
                                                         .Groups[1]
                                                         .Value;
                    itemsList.Add(new TranscriptItem
                    {
                        StartTime = double.Parse(startTime),
                        Text = HttpUtility.HtmlDecode(childNode.InnerText.Trim())
                    });

                var listOfRows = new List<Rpt>();
                foreach (var property in doc.GetType().GetProperties())
                {
                    var attr = property.GetCustomAttributes(true).OfType<DisplayNameAttribute>().FirstOrDefault();
                    if (attr == null)
                        continue;

                    listOfRows.Add(new Rpt
                    {
                        Title = attr.DisplayName, 
                        Value = property.GetValue(doc, null).ToSafeString()
                    });
                }

                dataSource.StronglyTypedList(listOfRows);

using System.ComponentModel.DataAnnotations;

namespace BlazorAsyncValidation.Shared;

public class UserDto
{
    [Required] public string Name { set; get; } = default!;
}

using BlazorAsyncValidation.Shared;
using Microsoft.AspNetCore.Mvc;

namespace BlazorAsyncValidation.Server.Controllers;

[ApiController, Route("api/[controller]/[action]")]
public class RegisterController : ControllerBase
{
    [HttpPost]
    public IActionResult IsUserNameUnique([FromBody] UserDto userModel)
    {
        if (string.Equals(userModel?.Name, "Vahid", StringComparison.OrdinalIgnoreCase))
        {
            return Ok(false);
        }

        return Ok(true);
    }
}

@page "/"

<PageTitle>Index</PageTitle>

<h2>Register</h2>

<EditForm EditContext="@EditContext" OnValidSubmit="DoSubmitAsync">
    <DataAnnotationsValidator/>
    <div class="row mb-2">
        <label class="col-form-label col-lg-2">Name:</label>
        <div class="col-lg-10">
            <InputText @bind-Value="Model.Name" class="form-control"/>
            <ValidationMessage For="@(() => Model.Name)"/>
        </div>
    </div>

    <button class="btn btn-secondary" type="submit">Submit</button>
</EditForm>

public partial class Index
{
    private const string UserValidationUrl = "/api/Register/IsUserNameUnique";

    private ValidationMessageStore? _messageStore;
    [Inject] private HttpClient HttpClient { set; get; } = default!;
    private EditContext? EditContext { set; get; }

    private UserDto Model { get; } = new();

    protected override void OnInitialized()
    {
        EditContext = new EditContext(Model);
        _messageStore = new ValidationMessageStore(EditContext);
        EditContext.OnFieldChanged += (sender, eventArgs) =>
        {
            var fieldIdentifier = eventArgs.FieldIdentifier;
            _messageStore?.Clear(fieldIdentifier);
            _ = InvokeAsync(async () =>
            {
                var errors = await OnValidateFieldAsync(fieldIdentifier.FieldName);
                if (errors?.Any() != true)
                {
                    return;
                }

                foreach (var error in errors)
                {
                    _messageStore?.Add(fieldIdentifier, error);
                }

                EditContext.NotifyValidationStateChanged();
            });
            StateHasChanged();
        };
        EditContext.OnValidationStateChanged += (sender, eventArgs) => StateHasChanged();
        EditContext.OnValidationRequested += (sender, eventArgs) => _messageStore?.Clear();
    }

    private async Task<IList<string>?> OnValidateFieldAsync(string fieldName)
    {
        switch (fieldName)
        {
            case nameof(UserDto.Name):
                var response = await HttpClient.PostAsJsonAsync(
                    UserValidationUrl,
                    new UserDto { Name = Model.Name });
                var responseContent = await response.Content.ReadAsStringAsync();
                if (string.Equals(responseContent, "false", StringComparison.OrdinalIgnoreCase))
                {
                    return new List<string>
                    {
                        $"`{Model.Name}` is in use. Please choose another name."
                    };
                }

                // TIP: It's better to use the `DntDebounceInputText` component for this case to reduce the network round-trips.

                break;
        }

        return null;
    }

 dotnet ef dbcontext scaffold "Data Source=(local);Initial Catalog=BloggingCore2016;Integrated Security = true" Microsoft.EntityFrameworkCore.SqlServer -o Entities --context MyDBDataContext --verbose

using System;
using System.Collections.Generic;

namespace Core1RtmEmptyTest.Entities
{
    public partial class Blog
    {
        public Blog()
        {
            Post = new HashSet<Post>();
        }

        public int BlogId { get; set; }
        public string Url { get; set; }

        public virtual ICollection<Post> Post { get; set; }
    }
}

using System;
using System.Collections.Generic;

namespace Core1RtmEmptyTest.Entities
{
    public partial class Post
    {
        public int PostId { get; set; }
        public string Content { get; set; }
        public string Title { get; set; }

        public virtual Blog Blog { get; set; }
        public int BlogId { get; set; }
    }
}

using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata;

namespace Core1RtmEmptyTest.Entities
{
    public partial class MyDBDataContext : DbContext
    {
        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseSqlServer(@"Data Source=(local);Initial Catalog=BloggingCore2016;Integrated Security = true");
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            modelBuilder.Entity<Blog>(entity =>
            {
                entity.Property(e => e.Url).IsRequired();
            });

            modelBuilder.Entity<Post>(entity =>
            {
                entity.HasOne(d => d.Blog)
                    .WithMany(p => p.Post)
                    .HasForeignKey(d => d.BlogId);
            });
        }

        public virtual DbSet<Blog> Blog { get; set; }
        public virtual DbSet<Post> Post { get; set; }
    }
}

 public virtual Blog Blog { get; set; }

 public virtual ICollection<Post> Post { get; set; }

<primary key property name>
<navigation property name><primary key property name>
<principal entity name><primary key property name>

  public virtual Blog Blog { get; set; }
  public int BlogId { get; set; }

modelBuilder.Entity<Post>(entity =>
{
    entity.HasOne(d => d.Blog)
             .WithMany(p => p.Post)
             .HasForeignKey(d => d.BlogId);
});

 dotnet ef dbcontext scaffold "Data Source=(local);Initial Catalog=BloggingCore2016;Integrated Security = true" Microsoft.EntityFrameworkCore.SqlServer -o Entities --context MyDBDataContext --verbose -a

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Core1RtmEmptyTest.Entities
{
    public partial class Blog
    {
        public Blog()
        {
            Post = new HashSet<Post>();
        }

        public int BlogId { get; set; }

        [Required]
        public string Url { get; set; }

        [InverseProperty("Blog")]
        public virtual ICollection<Post> Post { get; set; }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Core1RtmEmptyTest.Entities
{
    public partial class Post
    {
        public int PostId { get; set; }
        public string Content { get; set; }
        public string Title { get; set; }

        [ForeignKey("BlogId")]
        [InverseProperty("Post")]
        public virtual Blog Blog { get; set; }
        public int BlogId { get; set; }
    }
}

using System;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata;

namespace Core1RtmEmptyTest.Entities
{
    public partial class MyDBDataContext : DbContext
    {
        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseSqlServer(@"Data Source=(local);Initial Catalog=BloggingCore2016;Integrated Security = true");
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
        }

        public virtual DbSet<Blog> Blog { get; set; }
        public virtual DbSet<Post> Post { get; set; }
    }
}

  [ForeignKey("BlogId")]
  [InverseProperty("Post")]
  public virtual Blog Blog { get; set; }
  public int BlogId { get; set; }

   [InverseProperty("Blog")]
  public virtual ICollection<Post> Post { get; set; }

public virtual Blog Blog { get; set; }

 var firstPost = context.Post.First();
Console.WriteLine(firstPost.Blog.Url);

 System.NullReferenceException
Object reference not set to an instance of an object.

 var firstPost = context.Post.Include(x => x.Blog).First();
Console.WriteLine(firstPost.Blog.Url);

var blogs = context.Blogs
                              .Include(blog => blog.Posts)
                              .Include(blog => blog.Owner)
                              .ToList();

var blogs = context.Blogs
                              .Include(blog => blog.Posts)
                                      .ThenInclude(post => post.Author)
                              .ToList();

var blogs = context.Blogs
                              .Include(blog => blog.Posts)
                                 .ThenInclude(post => post.Author)
                                        .ThenInclude(author => author.Photo)
                              .ToList();

var blogs = context.Blogs
                              .Include(blog => blog.Posts)
                                  .ThenInclude(post => post.Author)
                                      .ThenInclude(author => author.Photo)
                              .Include(blog => blog.Owner)
                                    .ThenInclude(owner => owner.Photo)
                              .ToList();

var blogs = context.Blogs
                              .Include(blog => blog.Posts)
                              .Select(blog => new
                               {
                                  Id = blog.BlogId,
                                  Url = blog.Url
                               })
                               .ToList();

 CONSTRAINT [FK_Post_Blog_BlogId] FOREIGN KEY ([BlogId]) REFERENCES [Blog] ([BlogId]) ON DELETE CASCADE

modelBuilder.Entity<Post>()
                    .HasOne(p => p.Blog)
                    .WithMany(b => b.Posts)
                    .OnDelete(DeleteBehavior.Cascade);

modelBuilder.Entity<Post>()
                    .HasOne(p => p.Blog)
                    .WithMany(b => b.Posts)
                    .IsRequired();

namespace ASPNETCoreIdentitySample.DataLayer.Mappings
{
    public class RoleConfiguration : IEntityTypeConfiguration<Role>
    {
        private readonly SiteSettings _siteSettings;
        private readonly ILookupNormalizer _keyNormalizer;

        public RoleConfiguration(SiteSettings siteSettings, ILookupNormalizer keyNormalizer)
        {
            _siteSettings = siteSettings ?? throw new ArgumentNullException(nameof(siteSettings));
            _keyNormalizer = keyNormalizer ?? throw new ArgumentNullException(nameof(keyNormalizer));
        }

        public void Configure(EntityTypeBuilder<Role> builder)
        {
            builder.ToTable("AppRoles");

            var adminUserSeed = _siteSettings.AdminUserSeed;
            builder.HasData(
                new Role
                {
                    Id = 1,
                    Name = adminUserSeed.RoleName,
                    NormalizedName = _keyNormalizer.NormalizeName(adminUserSeed.RoleName),
                    ConcurrencyStamp = Guid.NewGuid().ToString()
                });
        }
    }
}

    public class UserConfiguration : IEntityTypeConfiguration<User>
    {
        private readonly SiteSettings _siteSettings;
        private readonly ILookupNormalizer _keyNormalizer;
        private readonly IPasswordHasher<User> _passwordHasher;

        public UserConfiguration(
            SiteSettings siteSettings,
            ILookupNormalizer keyNormalizer,
            IPasswordHasher<User> passwordHasher)
        {
            _siteSettings = siteSettings ?? throw new ArgumentNullException(nameof(siteSettings));
            _keyNormalizer = keyNormalizer ?? throw new ArgumentNullException(nameof(keyNormalizer));
            _passwordHasher = passwordHasher ?? throw new ArgumentNullException(nameof(passwordHasher));
        }

        public void Configure(EntityTypeBuilder<User> builder)
        {
            builder.ToTable("AppUsers");

            var adminUserSeed = _siteSettings.AdminUserSeed;
            builder.HasData(
                new User
                {
                    Id = 1,
                    UserName = adminUserSeed.Username,
                    NormalizedUserName = _keyNormalizer.NormalizeName(adminUserSeed.Username),
                    Email = adminUserSeed.Email,
                    NormalizedEmail = _keyNormalizer.NormalizeEmail(adminUserSeed.Email),
                    EmailConfirmed = true,
                    IsEmailPublic = true,
                    LockoutEnabled = true,
                    TwoFactorEnabled = false,
                    PasswordHash = _passwordHasher.HashPassword(null, adminUserSeed.Password),
                    ConcurrencyStamp = Guid.NewGuid().ToString(),
                    SecurityStamp = string.Empty,
                    IsActive = true
                });
        }
    }

    public class UserRoleConfiguration : IEntityTypeConfiguration<UserRole>
    {
        public void Configure(EntityTypeBuilder<UserRole> builder)
        {
            builder.HasOne(userRole => userRole.Role)
                   .WithMany(role => role.Users)
                   .HasForeignKey(userRole => userRole.RoleId);

            builder.HasOne(userRole => userRole.User)
                   .WithMany(user => user.Roles)
                   .HasForeignKey(userRole => userRole.UserId);

            builder.ToTable("AppUserRoles");

            builder.HasData(
                new UserRole
                {
                    UserId = 1,
                    RoleId = 1
                });
        }
    }

    public class ApplicationDbContextFactory : IDesignTimeDbContextFactory<ApplicationDbContext>
    {
        public ApplicationDbContext CreateDbContext(string[] args)
        {
            // ....
            services.TryAddScoped<ILookupNormalizer, UpperInvariantLookupNormalizer>();
            services.TryAddScoped<IPasswordHasher<User>, PasswordHasher<User>>();

using Microsoft.EntityFrameworkCore.Infrastructure;

namespace ASPNETCoreIdentitySample.DataLayer.Context
{
    public class ApplicationDbContext :
        IdentityDbContext<User, Role, int, UserClaim, UserRole, UserLogin, RoleClaim, UserToken>,
        IUnitOfWork
    {
        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
            : base(options) { }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);

            var siteSettings = this.GetService<IOptionsSnapshot<SiteSettings>>()?.Value;
            var lookupNormalizer = this.GetService<ILookupNormalizer>();
            var passwordHasher =  this.GetService<IPasswordHasher<User>>()

            modelBuilder.ApplyConfiguration(new RoleConfiguration(siteSettings, lookupNormalizer));
            modelBuilder.ApplyConfiguration(new UserConfiguration(siteSettings, lookupNormalizer, passwordHasher));
            modelBuilder.ApplyConfiguration(new UserUsedPasswordConfiguration(siteSettings, passwordHasher));
// ...

dotnet ef migrations --startup-project ../ASPNETCoreIdentitySample/ add V1

 PM> Install-Package Microsoft.AspNet.Identity.Samples -Pre

using System.ComponentModel.DataAnnotations.Schema;
using Microsoft.AspNet.Identity.EntityFramework;
 
namespace AspNetIdentityDependencyInjectionSample.DomainClasses
{
  public class ApplicationUser : IdentityUser<int, CustomUserLogin, CustomUserRole, CustomUserClaim>
  {
   // سایر خواص اضافی در اینجا
 
   [ForeignKey("AddressId")]
   public virtual Address Address { get; set; }
   public int? AddressId { get; set; }
  }
}

using System.Collections.Generic;
 
namespace AspNetIdentityDependencyInjectionSample.DomainClasses
{
  public class Address
  {
   public int Id { get; set; }
   public string City { get; set; }
   public string State { get; set; }
 
   public virtual ICollection<ApplicationUser> ApplicationUsers { set; get; }
  }
}

using Microsoft.AspNet.Identity.EntityFramework;
 
namespace AspNetIdentityDependencyInjectionSample.DomainClasses
{
  public class CustomRole : IdentityRole<int, CustomUserRole>
  {
   public CustomRole() { }
   public CustomRole(string name) { Name = name; }
 
 
  }
}

using Microsoft.AspNet.Identity.EntityFramework;
 
namespace AspNetIdentityDependencyInjectionSample.DomainClasses
{
  public class CustomUserClaim : IdentityUserClaim<int>
  {
 
  }
}

using Microsoft.AspNet.Identity.EntityFramework;
 
namespace AspNetIdentityDependencyInjectionSample.DomainClasses
{
  public class CustomUserLogin : IdentityUserLogin<int>
  {
 
  }
}

using Microsoft.AspNet.Identity.EntityFramework;
 
namespace AspNetIdentityDependencyInjectionSample.DomainClasses
{
  public class CustomUserRole : IdentityUserRole<int>
  {
 
  }
}

 public class ApplicationDbContext : IdentityDbContext<ApplicationUser>

using System.Collections.Generic;
using System.Data.Entity;
 
namespace AspNetIdentityDependencyInjectionSample.DataLayer.Context
{
  public interface IUnitOfWork
  {
   IDbSet<TEntity> Set<TEntity>() where TEntity : class;
   int SaveAllChanges();
   void MarkAsChanged<TEntity>(TEntity entity) where TEntity : class;
   IList<T> GetRows<T>(string sql, params object[] parameters) where T : class;
   IEnumerable<TEntity> AddThisRange<TEntity>(IEnumerable<TEntity> entities) where TEntity : class;
   void ForceDatabaseInitialize();
  }
}

public class ApplicationDbContext :
  IdentityDbContext<ApplicationUser, CustomRole, int, CustomUserLogin, CustomUserRole, CustomUserClaim>,
  IUnitOfWork
{
  public DbSet<Category> Categories { set; get; }
  public DbSet<Product> Products { set; get; }
  public DbSet<Address> Addresses { set; get; }

 public class ApplicationDbInitializer : DropCreateDatabaseIfModelChanges<ApplicationDbContext>

using System.Data.Entity.Migrations;
 
namespace AspNetIdentityDependencyInjectionSample.DataLayer.Context
{
  public class Configuration : DbMigrationsConfiguration<ApplicationDbContext>
  {
   public Configuration()
   {
    AutomaticMigrationsEnabled = true;
    AutomaticMigrationDataLossAllowed = true;
   }
  }
}

using System;
using System.Security.Claims;
using System.Threading.Tasks;
using AspNetIdentityDependencyInjectionSample.DomainClasses;
using AspNetIdentityDependencyInjectionSample.ServiceLayer.Contracts;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin.Security.Cookies;
using Microsoft.Owin.Security.DataProtection;
 
namespace AspNetIdentityDependencyInjectionSample.ServiceLayer
{
  public class ApplicationUserManager
   : UserManager<ApplicationUser, int>, IApplicationUserManager
  {
   private readonly IDataProtectionProvider _dataProtectionProvider;
   private readonly IIdentityMessageService _emailService;
   private readonly IApplicationRoleManager _roleManager;
   private readonly IIdentityMessageService _smsService;
   private readonly IUserStore<ApplicationUser, int> _store;
 
   public ApplicationUserManager(IUserStore<ApplicationUser, int> store,
    IApplicationRoleManager roleManager,
    IDataProtectionProvider dataProtectionProvider,
    IIdentityMessageService smsService,
    IIdentityMessageService emailService)
    : base(store)
   {
    _store = store;
    _roleManager = roleManager;
    _dataProtectionProvider = dataProtectionProvider;
    _smsService = smsService;
    _emailService = emailService;
 
    createApplicationUserManager();
   }
 
 
   public void SeedDatabase()
   {
   }
 
   private void createApplicationUserManager()
   {
    // Configure validation logic for usernames
    this.UserValidator = new UserValidator<ApplicationUser, int>(this)
    {
      AllowOnlyAlphanumericUserNames = false,
      RequireUniqueEmail = true
    };
 
    // Configure validation logic for passwords
    this.PasswordValidator = new PasswordValidator
    {
      RequiredLength = 6,
      RequireNonLetterOrDigit = true,
      RequireDigit = true,
      RequireLowercase = true,
      RequireUppercase = true,
    };
 
    // Configure user lockout defaults
    this.UserLockoutEnabledByDefault = true;
    this.DefaultAccountLockoutTimeSpan = TimeSpan.FromMinutes(5);
    this.MaxFailedAccessAttemptsBeforeLockout = 5;
 
    // Register two factor authentication providers. This application uses Phone and Emails as a step of receiving a code for verifying the user
    // You can write your own provider and plug in here.
    this.RegisterTwoFactorProvider("PhoneCode", new PhoneNumberTokenProvider<ApplicationUser, int>
    {
      MessageFormat = "Your security code is: {0}"
    });
    this.RegisterTwoFactorProvider("EmailCode", new EmailTokenProvider<ApplicationUser, int>
    {
      Subject = "SecurityCode",
      BodyFormat = "Your security code is {0}"
    });
    this.EmailService = _emailService;
    this.SmsService = _smsService;
 
    if (_dataProtectionProvider != null)
    {
      var dataProtector = _dataProtectionProvider.Create("ASP.NET Identity");
      this.UserTokenProvider = new DataProtectorTokenProvider<ApplicationUser, int>(dataProtector);
    }
   } 
  }
}

using AspNetIdentityDependencyInjectionSample.DomainClasses;
using AspNetIdentityDependencyInjectionSample.ServiceLayer.Contracts;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.Owin.Security;
 
namespace AspNetIdentityDependencyInjectionSample.ServiceLayer
{
  public class ApplicationSignInManager :
   SignInManager<ApplicationUser, int>, IApplicationSignInManager
  {
   private readonly ApplicationUserManager _userManager;
   private readonly IAuthenticationManager _authenticationManager;
 
   public ApplicationSignInManager(ApplicationUserManager userManager,
              IAuthenticationManager authenticationManager) :
    base(userManager, authenticationManager)
   {
    _userManager = userManager;
    _authenticationManager = authenticationManager;
   }
  }
}

using AspNetIdentityDependencyInjectionSample.DomainClasses;
using AspNetIdentityDependencyInjectionSample.ServiceLayer.Contracts;
using Microsoft.AspNet.Identity;
 
namespace AspNetIdentityDependencyInjectionSample.ServiceLayer
{
  public class ApplicationRoleManager : RoleManager<CustomRole, int>, IApplicationRoleManager
  {
   private readonly IRoleStore<CustomRole, int> _roleStore;
   public ApplicationRoleManager(IRoleStore<CustomRole, int> roleStore)
    : base(roleStore)
   {
    _roleStore = roleStore;
   }
 
 
   public CustomRole FindRoleByName(string roleName)
   {
    return this.FindByName(roleName); // RoleManagerExtensions
   }
 
   public IdentityResult CreateRole(CustomRole role)
   {
    return this.Create(role); // RoleManagerExtensions
   }
  }
}

using System;
using System.Data.Entity;
using System.Threading;
using System.Web;
using AspNetIdentityDependencyInjectionSample.DataLayer.Context;
using AspNetIdentityDependencyInjectionSample.DomainClasses;
using AspNetIdentityDependencyInjectionSample.ServiceLayer;
using AspNetIdentityDependencyInjectionSample.ServiceLayer.Contracts;
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.Owin.Security;
using StructureMap;
using StructureMap.Web;
 
namespace AspNetIdentityDependencyInjectionSample.IocConfig
{
  public static class SmObjectFactory
  {
   private static readonly Lazy<Container> _containerBuilder =
    new Lazy<Container>(defaultContainer, LazyThreadSafetyMode.ExecutionAndPublication);
 
   public static IContainer Container
   {
    get { return _containerBuilder.Value; }
   }
 
   private static Container defaultContainer()
   {
    return new Container(ioc =>
    {
      ioc.For<IUnitOfWork>()
        .HybridHttpOrThreadLocalScoped()
        .Use<ApplicationDbContext>();
 
      ioc.For<ApplicationDbContext>().HybridHttpOrThreadLocalScoped().Use<ApplicationDbContext>();
      ioc.For<DbContext>().HybridHttpOrThreadLocalScoped().Use<ApplicationDbContext>();
 
      ioc.For<IUserStore<ApplicationUser, int>>()
       .HybridHttpOrThreadLocalScoped()
       .Use<UserStore<ApplicationUser, CustomRole, int, CustomUserLogin, CustomUserRole, CustomUserClaim>>();
 
      ioc.For<IRoleStore<CustomRole, int>>()
       .HybridHttpOrThreadLocalScoped()
       .Use<RoleStore<CustomRole, int, CustomUserRole>>();
 
      ioc.For<IAuthenticationManager>()
        .Use(() => HttpContext.Current.GetOwinContext().Authentication);
 
      ioc.For<IApplicationSignInManager>()
        .HybridHttpOrThreadLocalScoped()
        .Use<ApplicationSignInManager>();
 
      ioc.For<IApplicationUserManager>()
        .HybridHttpOrThreadLocalScoped()
        .Use<ApplicationUserManager>();
 
      ioc.For<IApplicationRoleManager>()
        .HybridHttpOrThreadLocalScoped()
        .Use<ApplicationRoleManager>();
 
      ioc.For<IIdentityMessageService>().Use<SmsService>();
      ioc.For<IIdentityMessageService>().Use<EmailService>();
      ioc.For<ICustomRoleStore>()
        .HybridHttpOrThreadLocalScoped()
        .Use<CustomRoleStore>();
 
      ioc.For<ICustomUserStore>()
        .HybridHttpOrThreadLocalScoped()
        .Use<CustomUserStore>();
 
      //config.For<IDataProtectionProvider>().Use(()=> app.GetDataProtectionProvider()); // In Startup class
 
      ioc.For<ICategoryService>().Use<EfCategoryService>();
      ioc.For<IProductService>().Use<EfProductService>();
    });
   }
  }
}

using System;
using AspNetIdentityDependencyInjectionSample.IocConfig;
using AspNetIdentityDependencyInjectionSample.ServiceLayer.Contracts;
using Microsoft.AspNet.Identity;
using Microsoft.Owin;
using Microsoft.Owin.Security.Cookies;
using Microsoft.Owin.Security.DataProtection;
using Owin;
using StructureMap.Web;
 
namespace AspNetIdentityDependencyInjectionSample
{
  public class Startup
  {
   public void Configuration(IAppBuilder app)
   {
    configureAuth(app);
   }
 
   private static void configureAuth(IAppBuilder app)
   {
    SmObjectFactory.Container.Configure(config =>
    {
      config.For<IDataProtectionProvider>()
        .HybridHttpOrThreadLocalScoped()
        .Use(()=> app.GetDataProtectionProvider());
    });
    SmObjectFactory.Container.GetInstance<IApplicationUserManager>().SeedDatabase();
 
    // Configure the db context, user manager and role manager to use a single instance per request
    app.CreatePerOwinContext(() => SmObjectFactory.Container.GetInstance<IApplicationUserManager>());
 
    // 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
      {
       // 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 = SmObjectFactory.Container.GetInstance<IApplicationUserManager>().OnValidateIdentity()
      }
    });
    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); 
   }
 
  }
}

using System;
using System.Data.Entity;
using System.Web;
using System.Web.Mvc;
using System.Web.Optimization;
using System.Web.Routing;
using AspNetIdentityDependencyInjectionSample.DataLayer.Context;
using AspNetIdentityDependencyInjectionSample.IocConfig;
using StructureMap.Web.Pipeline;
 
namespace AspNetIdentityDependencyInjectionSample
{
  public class MvcApplication : HttpApplication
  {
   protected void Application_Start()
   {
    AreaRegistration.RegisterAllAreas();
    FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
    RouteConfig.RegisterRoutes(RouteTable.Routes);
    BundleConfig.RegisterBundles(BundleTable.Bundles);
 
 
    setDbInitializer();
    //Set current Controller factory as StructureMapControllerFactory
    ControllerBuilder.Current.SetControllerFactory(new StructureMapControllerFactory());
   }
 
   protected void Application_EndRequest(object sender, EventArgs e)
   {
    HttpContextLifecycle.DisposeAndClearAll();
   }
 
   public class StructureMapControllerFactory : DefaultControllerFactory
   {
    protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
    {
      if (controllerType == null)
       throw new InvalidOperationException(string.Format("Page not found: {0}", requestContext.HttpContext.Request.RawUrl));
      return SmObjectFactory.Container.GetInstance(controllerType) as Controller;
    }
   }
 
   private static void setDbInitializer()
   {
    Database.SetInitializer(new MigrateDatabaseToLatestVersion<ApplicationDbContext, Configuration>());
    SmObjectFactory.Container.GetInstance<IUnitOfWork>().ForceDatabaseInitialize();
   }
  }
}

  [Authorize]
public class AccountController : Controller
{
  private readonly IAuthenticationManager _authenticationManager;
  private readonly IApplicationSignInManager _signInManager;
  private readonly IApplicationUserManager _userManager;
  public AccountController(IApplicationUserManager userManager,
          IApplicationSignInManager signInManager,
          IAuthenticationManager authenticationManager)
  {
   _userManager = userManager;
   _signInManager = signInManager;
   _authenticationManager = authenticationManager;
  }

  [Authorize]
public class ManageController : Controller
{
  // Used for XSRF protection when adding external logins
  private const string XsrfKey = "XsrfId";
 
  private readonly IAuthenticationManager _authenticationManager;
  private readonly IApplicationUserManager _userManager;
  public ManageController(IApplicationUserManager userManager, IAuthenticationManager authenticationManager)
  {
   _userManager = userManager;
   _authenticationManager = authenticationManager;
  }

  [Authorize(Roles = "Admin")]
public class RolesAdminController : Controller
{
  private readonly IApplicationRoleManager _roleManager;
  private readonly IApplicationUserManager _userManager;
  public RolesAdminController(IApplicationUserManager userManager,
           IApplicationRoleManager roleManager)
  {
   _userManager = userManager;
   _roleManager = roleManager;
  }


  [Authorize(Roles = "Admin")]
public class UsersAdminController : Controller
{
  private readonly IApplicationRoleManager _roleManager;
  private readonly IApplicationUserManager _userManager;
  public UsersAdminController(IApplicationUserManager userManager,
           IApplicationRoleManager roleManager)
  {
   _userManager = userManager;
   _roleManager = roleManager;
  }

using System.IO;
using System.Text;

class Program
{
  static void Main()
  {
    using (var writer = new StreamWriter("data.txt"))
    {
      var builder = new StringBuilder();
      for (var i = 0; i <= 256; i++)
      {
        writer.Write(builder.Capacity);
        writer.Write(",");
        writer.Write(builder.Length);
        writer.WriteLine();
        builder.Append('1'); // <-- Add one character
      }
    }
  }
}

16, 0
16, 1
16, 2
...
16,14
16,15
16,16
32,17
...

namespace StringBuilderTest
{
  internal class SbTest1
  {
    internal Action<string> WriteLog;
    internal int Iterations { get; set; }
    internal string TestString { get; set; }

    internal SbTest1(int iterations, string testString, Action<string> writeLog)
    {
      Iterations = iterations;
      TestString = testString;
      WriteLog = writeLog;
    }

    internal void StartTest()
    {
      var watch = new Stopwatch();

      //StringBuilder
      watch.Start();
      var sbTestResult = SbTest();
      watch.Stop();
      WriteLog(string.Format("StringBuilder time: {0}", watch.ElapsedMilliseconds));

      //Concat
      watch.Start();
      var concatTestResult = ConcatTest();
      watch.Stop();
      WriteLog(string.Format("ConcatTest time: {0}", watch.ElapsedMilliseconds));

      WriteLog(string.Format("Results are{0} the same", sbTestResult == concatTestResult ? string.Empty : " NOT"));
    }

    private string SbTest()
    {
      var sb = new StringBuilder(TestString);
      for (var x = 0; x < Iterations; x++)
      {
        sb.Append(TestString);
      }
      return sb.ToString();
    }

    private string ConcatTest()
    {
      string concat = TestString;
      for (var x = 0; x < Iterations; x++)
      {
        concat += TestString;
      }
      return concat;
    }
  }
}

do
{
  Console.Write("Iteration: ");
  var iterations = Convert.ToInt32(Console.ReadLine());
  Console.Write("Test String: ");
  var testString = Console.ReadLine();
  var test1 = new SbTest1(iterations, testString, Console.WriteLine);
  test1.StartTest();
  Console.WriteLine("----------------------------------------------------------------");
} while (Console.ReadKey(true).Key == ConsoleKey.C); // C = continue 

private string SbCapacityTest()
{
  var sb = new StringBuilder(TestString) { Capacity = TestString.Length * Iterations };
  for (var x = 0; x < Iterations; x++)
  {
    sb.Append(TestString);
  }
  return sb.ToString();
}

function checkCodeMeli(code)
{
  
  var L=code.length;
  
  if(L<11 || parseInt(code,10)==0) return false;
  
  if(parseInt(code.substr(3,6),10)==0) return false;
  var c=parseInt(code.substr(10,1),10);
  var d=parseInt(code.substr(9,1),10)+2;
  var z=new Array(29,27,23,19,17);
  var s=0;
  for(var i=0;i<10;i++)
    s+=(d+parseInt(code.substr(i,1),10))*z[i%5];
  s=s%11;if(s==10) s=0;
  return (c==s);

}

    public class ProductService
    {
        public IEnumerable<Product> GetOrderedProducts()
        {
            using (var ctx = new Entites())
            {
                return ctx.Products.OrderBy(x => x.Name).ToList();
            }
        }
    }

• Using Entity Framework in integration tests
  
• How We Do Database Integration Tests With Entity Framework Migrations
  

    public class ProductService
    {
        private readonly IDbSet<Product> _products;
        private readonly IUnitOfWork _uow;
        public ProductService(IUnitOfWork uow)
        {
            _uow = uow;
            _products = _uow.Set<Product>();
        }
     public IEnumerable<Product> GetOrderedProducts()
        {
            return _products.OrderBy(x => x.Name).ToList();
        }
    }

   [TestFixture]
    public class ProductServiceTest
    {
        private readonly ProductService _productService;
        public ProductServiceTest()
        {
            IQueryable<Product> data = GetRoadNetworks().AsQueryable();
            var mockSet = new Mock<DbSet<Product>>();
            mockSet.As<IQueryable<Product>>().Setup(m => m.Provider).Returns(data.Provider);
            mockSet.As<IQueryable<Product>>().Setup(m => m.Expression).Returns(data.Expression);
            mockSet.As<IQueryable<Product>>().Setup(m => m.ElementType).Returns(data.ElementType);
            mockSet.As<IQueryable<Product>>().Setup(m => m.GetEnumerator()).Returns(data.GetEnumerator());
            var context = new Mock<Entites>();
            context.Setup(c => c.Products).Returns(mockSet.Object);
            context.Setup(m => m.Set<Product>()).Returns(mockSet.Object);
            _productService = new ProductService(context.Object);
        }
        private IEnumerable<Product> GetRoadNetworks()
        {
            return new List<Product>
            {
                new Product
                {
                    Id = 1,
                    Name = "A"
                },
                new Product
                {
                    Id = 2,
                    Name = "B"
                },
                new Product
                {
                    Id = 3,
                    Name = "C"
                }
            };
        }
        [Test]
        public void GetOrderedProductTest()
        {
            IEnumerable<Product> products = _productService.GetOrderedProducts();
            List<string> names = products.Select(x => x.Name).ToList();
            var expected = new List<string> {"A", "B", "C"};
            CollectionAssert.AreEqual(names, expected);
        }
    }

  <div style="overflow: auto">
            <img  id="preview" />
        </div>

<input type="hidden" id="RealW" name="RealW" />
<input type="hidden" id="RealH" name="RealH" />

$('#preview').Jcrop({

                    aspectRatio: 2, 
                    bgFade: true, 
                    bgOpacity: .3,
                    onChange: updateInfo,
                    onSelect: updateInfo
                }, function () {
                    // use the Jcrop API to get the real image size

//============== خطوط جدید
                    $("#RealW").val($('#preview').css("width").replace("px", ""));
                    $("#RealH").val($('#preview').css("height").replace("px", ""));
//==============

                    jcrop_api = this;
                });

 public static byte[] Resize(this byte[] byteImageIn, int x1,int y1,int x2,int y2,int realW,int realH)
        {

            //convert to full size image
            ImageConverter ic = new ImageConverter();
            Image src = (Image)(ic.ConvertFrom(byteImageIn)); //original size

            if (src == null)
                return null;

// چهار خط زیر فرمول تناسب را اجرا می‌کند
            x1 = src.Width * x1 / realW;
            x2 = src.Width * x2 / realW;

            y1 = src.Height * y1 / realH;
            y2 = src.Height * y2 / realH;

            Bitmap target = new Bitmap(x2 - x1, y2 - y1);
            using (Graphics graphics = Graphics.FromImage(target))
                graphics.DrawImage(src, new Rectangle(0, 0, target.Width, target.Height),
                    new Rectangle(x1,y1,x2-x1,y2-y1), 
                    GraphicsUnit.Pixel);
            src = target;
            using (var ms = new MemoryStream())
            {
                src.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                return ms.ToArray();
            }

        }