public interface IRunAtInit
{
       void Execute();
}
public interface IRunAfterEachRequest
{
       void Execute(); 
}
public interface IRunAtStartUp
{
       void Execute(); 
}
public interface IRunOnEachRequest
{
       void Execute(); 
}
public interface IRunOnError
{
       void Execute(); 
}

public class DataAccessSetupDependency : Autofac.Module
    {
        protected override void Load(ContainerBuilder builder)
        {
            base.Load(builder);
            builder.RegisterType<EFContext>().As<IDbContext>();
            builder.RegisterType<UnitOfWork>().As<IUnitOfWork>();
            builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly())
             .Where(x => x.Namespace.EndsWith("Repositories"))
             .AsImplementedInterfaces();
        }
    }

public class BusinessSetupDependency : Autofac.Module
    {
        protected override void Load(ContainerBuilder builder)
        {
            base.Load(builder);

            builder.RegisterAssemblyModules(typeof(SqlServerDataAccess.SetupDependencies.DataAccessSetupDependency).Assembly);

            //builder.RegisterAssemblyModules(typeof(CassandraDataAccess.SetupDependecies.SetupDependency).Assembly);

            builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly())
           .Where(x => x.Namespace.EndsWith("Business.Core"))
           .AsImplementedInterfaces();

            builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly())
            .Where(x => x.Namespace.EndsWith("Business.Businesses"))
            .AsImplementedInterfaces();
        }
    }

public class WebSetupDependency : Autofac.Module
    {
        protected override void Load(ContainerBuilder builder)
        {
            base.Load(builder);
            builder.RegisterAssemblyModules(typeof(Business.SetupDependencies.BusinessSetupDependency).Assembly);
            builder.RegisterControllers(Assembly.GetExecutingAssembly());
            //سایر تنظیمات
            var container = builder.Build();
            CommonDependencyResolver.SetContainer(container);
            DependencyResolver.SetResolver(new AutofacDependencyResolver(container));

        }
    }
 public class AutofacConfig
    {
        public static void SetupContainer()
        {
             var builder = new ContainerBuilder();
            builder.RegisterAssemblyModules(Assembly.GetExecutingAssembly());
            var container = builder.Build();
            CommonDependencyResolver.SetContainer(container);
            DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
        }
    }

public static Task ForEachAsync<TSource>(IEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask> body)
public static Task ForEachAsync<TSource>(IEnumerable<TSource> source, CancellationToken cancellationToken, Func<TSource, CancellationToken, ValueTask> body)
public static Task ForEachAsync<TSource>(IEnumerable<TSource> source, ParallelOptions parallelOptions, Func<TSource, CancellationToken, ValueTask> body)
public static Task ForEachAsync<TSource>(IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask> body)
public static Task ForEachAsync<TSource>(IAsyncEnumerable<TSource> source, CancellationToken cancellationToken, Func<TSource, CancellationToken, ValueTask> body)
public static Task ForEachAsync<TSource>(IAsyncEnumerable<TSource> source, ParallelOptions parallelOptions, Func<TSource, CancellationToken, ValueTask> body)

customers.ForEach(c => SendEmailAsync(c));

foreach(var c in customers)
{
    SendEmailAsync(c); // the return task is ignored
}

customers.ForEach(async c => await SendEmailAsync(c));

foreach(var c in customers)
{
   await SendEmailAsync(c);
}

foreach(var o in orders)
{
    await ProcessOrderAsync(o);
}

var tasks = orders.Select(o => ProcessOrderAsync(o)).ToList();
await Task.WhenAll(tasks);

using System;
using System.ComponentModel.DataAnnotations;
namespace Test
{
    [AttributeUsage(AttributeTargets.Property, AllowMultiple = false)]
    public class CompareAttribute : ValidationAttribute
    {
        public CompareAttribute(string originalProperty, string confirmProperty)
        {
            OriginalProperty = originalProperty;
            ConfirmProperty = confirmProperty;
        }
        public string ConfirmProperty { get; private set; }
        public string OriginalProperty { get; private set; }
        protected override ValidationResult IsValid(object value, ValidationContext ctx)
        {
            if (value == null)
                return new ValidationResult("لطفا فیلدها را تکمیل نمائید");
            var confirmProperty = ctx.ObjectType.GetProperty(ConfirmProperty);
            if (confirmProperty == null)
                throw new InvalidOperationException(string.Format("لطفا فیلد {0} را تعریف نمائید", ConfirmProperty));
            var confirmValue = confirmProperty.GetValue(ctx.ObjectInstance, null) as string;
            if (string.IsNullOrWhiteSpace(confirmValue))
                return new ValidationResult(string.Format("لطفا فیلد {0} را تکمیل نمائید", ConfirmProperty));
            var originalProperty = ctx.ObjectType.GetProperty(OriginalProperty);
            if (originalProperty == null)
                throw new InvalidOperationException(string.Format("لطفا فیلد {0} را تعریف نمائید", OriginalProperty));
            var originalValue = originalProperty.GetValue(ctx.ObjectInstance, null) as string;
            if (string.IsNullOrWhiteSpace(originalValue))
                return new ValidationResult(string.Format("لطفا فیلد {0} را تکمیل نمائید", OriginalProperty));
            return originalValue == confirmValue ? ValidationResult.Success : new ValidationResult("مقادیر وارد شده یکسان نیستند");
        }
    }
}

PM>Install-Package DNTFrameworkCore
PM>Install-Package DNTFrameworkCore.EntityFramework
PM>Install-Package DNTFrameworkCore.Web
PM>Install-Package DNTFrameworkCore.Web.EntityFramework

[Route("api/[controller]")]
public class
    TasksController : CrudController<ITaskService, int, TaskReadModel, TaskModel, TaskFilteredPagedQueryModel>
{
    public TasksController(ITaskService service) : base(service)
    {
    }

    protected override string CreatePermissionName => PermissionNames.Tasks_Create;
    protected override string EditPermissionName => PermissionNames.Tasks_Edit;
    protected override string ViewPermissionName => PermissionNames.Tasks_View;
    protected override string DeletePermissionName => PermissionNames.Tasks_Delete;
}

 Install-Package Stimulsoft.Reports.Blazor -Version 2021.2.4

[HttpGet]
[Route("GetReportFile/{fileName}")]
public async Task<IActionResult> GetReportFile(string fileName)
{
   var rootPath = _webHostEnverioment.WebRootFileProvider.GetDirectoryContents("/")
                     .FirstOrDefault(x => x.Name == "Reports")?.PhysicalPath;
   var path = Path.Combine(rootPath!, fileName);
   var bytes = await System.IO.File.ReadAllBytesAsync(path);
   return Ok(bytes);
}

@page "/"
@using Stimulsoft.Base
@using Stimulsoft.Report
@using Stimulsoft.Report.Blazor
@inject HttpClient Http
<StiBlazorViewer Report="@report" />

@code
{
    private StiReport report;
    protected override async Task OnInitializedAsync()
    {
        //Create empty report object
        report = new StiReport();
        //Load report template
        // var reportBytes = await Http.GetByteArrayAsync("Reports/Report.mrt");
        report.RegBusinessObject("MyList", GetBusinessObject());
        var uri = $"/api/Report/GetReportFile/Report.mrt";
        var reportFile=await Http.GetFromJsonAsync<byte[]>(uri);
      //  var reportFile = await Http.GetByteArrayAsync("Report.mrt");
        report.Load(reportFile);
        await report.Dictionary.SynchronizeAsync();

    }

    public class BusinessEntity
    {
        public string Name { get; set; }
        public string Alias { get; set; }
        public BusinessEntity(string name, string alias)
        {
            Name = name;
            Alias = alias;
        }
    }

    private System.Collections.ArrayList GetBusinessObject()
    {
        var list = new System.Collections.ArrayList();
        list.Add(new BusinessEntity("ali", "alias1"));
        list.Add(new BusinessEntity("reza", "alias2"));
        return list;
    }
}

    public class MyBaseController : Controller
    {
        /// <summary>
        /// from http://forums.asp.net/t/1776480.aspx/1?ExecuteCore+in+base+class+not+fired+in+MVC+4+beta
        /// </summary>
        protected override bool DisableAsyncSupport
        { 
            get { return true; } 
        }

        protected override void ExecuteCore()
        {
            base.ExecuteCore();
        }
    }

پیاده سازی یک Storage Provider سفارشی برای ASP.NET Identity

public Task<IList<Claim>> GetClaimsAsync(IdentityUser user)
{
    ClaimsIdentity identity = userClaimsTable.FindByUserId(user.Id);
    return Task.FromResult<IList<Claim>>(identity.Claims.ToList());
}

public class IdentityUser : IUser
{
    public IdentityUser(){...}

    public IdentityUser(string userName) (){...}

    public string Id { get; set; }

    public string UserName { get; set; }

    public string PasswordHash { get; set; }

    public string SecurityStamp { get; set; }
}

public class UserStore : IUserStore<IdentityUser>,
                         IUserClaimStore<IdentityUser>,
                         IUserLoginStore<IdentityUser>,
                         IUserRoleStore<IdentityUser>,
                         IUserPasswordStore<IdentityUser>
{
    public UserStore(){...}

    public Task CreateAsync(IdentityUser user){...}

    public Task<IdentityUser> FindByIdAsync(string userId){...}   
...
}

public class IdentityRole : IRole
{
    public IdentityRole(){...}

    public IdentityRole(string roleName) (){...}

    public string Id { get; set; }

    public string Name { get; set; }
}

public class RoleStore : IRoleStore<IdentityRole>                        
{
    public RoleStore(){...}

    public Task CreateAsync(IdentityRole role){...}

    public Task<IdentityRole> FindByIdAsync(string roleId){...}   
....
}

CREATE TABLE `IdentityMySQLDatabase`.`users` (
  `Id` VARCHAR(45) NOT NULL,
  `UserName` VARCHAR(45) NULL,
  `PasswordHash` VARCHAR(100) NULL,
  `SecurityStamp` VARCHAR(45) NULL,
  PRIMARY KEY (`id`));

CREATE TABLE `IdentityMySQLDatabase`.`roles` (
  `Id` VARCHAR(45) NOT NULL,
  `Name` VARCHAR(45) NULL,
  PRIMARY KEY (`Id`));

CREATE TABLE `IdentityMySQLDatabase`.`userclaims` (
  `Id` INT NOT NULL AUTO_INCREMENT,
  `UserId` VARCHAR(45) NULL,
  `ClaimType` VARCHAR(100) NULL,
  `ClaimValue` VARCHAR(100) NULL,
  PRIMARY KEY (`Id`),
  FOREIGN KEY (`UserId`)
    REFERENCES `IdentityMySQLDatabase`.`users` (`Id`) on delete cascade);

CREATE TABLE `IdentityMySQLDatabase`.`userlogins` (
  `UserId` VARCHAR(45) NOT NULL,
  `ProviderKey` VARCHAR(100) NULL,
  `LoginProvider` VARCHAR(100) NULL,
  FOREIGN KEY (`UserId`)
    REFERENCES `IdentityMySQLDatabase`.`users` (`Id`) on delete cascade);

CREATE TABLE `IdentityMySQLDatabase`.`userroles` (
  `UserId` VARCHAR(45) NOT NULL,
  `RoleId` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`UserId`, `RoleId`),
  FOREIGN KEY (`UserId`)
    REFERENCES `IdentityMySQLDatabase`.`users` (`Id`) 
on delete cascade
on update cascade,
  FOREIGN KEY (`RoleId`)
    REFERENCES `IdentityMySQLDatabase`.`roles` (`Id`)
on delete cascade
on update cascade);

public AccountController() : this(new UserManager<IdentityUser>(new UserStore(new MySQLDatabase())))
{

}

<add name="DefaultConnection" connectionString="Database=IdentityMySQLDatabase;Data Source=<DataSource>;User Id=<UserID>;Password=<Password>" providerName="MySql.Data.MySqlClient" />