public class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            ConfigureAuth(app);
            app.MapSignalR();
        }

        private static void ConfigureAuth(IAppBuilder appBuilder)
        {
            const int twoWeeks = 14;
            ProjectObjectFactory.Container.Configure(config => config.For<IDataProtectionProvider>()
                .HybridHttpOrThreadLocalScoped()
                .Use(() => appBuilder.GetDataProtectionProvider()));

            appBuilder.CreatePerOwinContext(
                () => ProjectObjectFactory.Container.GetInstance<ApplicationUserManager>());

            appBuilder.UseCookieAuthentication(new CookieAuthenticationOptions
            {
                AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                LoginPath = new PathString("/Account/Login"),
                ExpireTimeSpan = TimeSpan.FromDays(twoWeeks),
                SlidingExpiration = true,
                CookieName = "MyFirstCms",
                Provider = new CookieAuthenticationProvider
                {
                    OnValidateIdentity =
                            ProjectObjectFactory.Container.GetInstance<IApplicationUserManager>().OnValidateIdentity()
                }
            });

            ProjectObjectFactory.Container.GetInstance<IApplicationRoleManager>()
           .SeedDatabase();

            ProjectObjectFactory.Container.GetInstance<IApplicationUserManager>()
               .SeedDatabase();

            appBuilder.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);

            // Enables the application to temporarily store user information when they are verifying the second factor in the two-factor authentication process.
            //appBuilder.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.
            // appBuilder.UseTwoFactorRememberBrowserCookie(DefaultAuthenticationTypes.TwoFactorRememberBrowserCookie);


            appBuilder.UseFacebookAuthentication(
               appId: "fdsfdsfs",
               appSecret: "fdfsfs");

            appBuilder.UseGoogleAuthentication(
                clientId: "fdsfsdfs",
                clientSecret: "fdsfsf");


        }
    }

    [HttpPost]
        [AllowAnonymous]
        //[CheckReferrer]
        [ValidateAntiForgeryToken]
        public virtual async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
        {
            if (!ModelState.IsValid)
            {
                return View(model);
            }

            if (!_userManager.CheckUserNameExist(model.UserName,null))
            {
                this.AddErrors("UserName", "نام کاربری یا کلمه عبور وارد شده نادرست است");
                return View(model);
            }
            if (_userManager.CheckIsUserBannedOrDelete(model.UserName))
            {
                this.AddErrors("UserName", "حساب کاربری شما مسدود شده است");
                return View(model);
            }
            if (!_userManager.IsEmailConfirmedByUserNameAsync(model.UserName))
            {
                this.NotyWarning("برای ورود به سایت لازم است حساب خود را فعال کنید");
                return RedirectToAction(MVC.Account.ActionNames.ReceiveActivatorEmail, MVC.Account.Name);
            }


            var result = await _signInManager.PasswordSignInAsync
                (model.UserName.ToLower(), model.Password, model.RememberMe, shouldLockout: true);

            switch (result)
            {
                case SignInStatus.Success:
                    this.NotySuccess("شما با موفقیت وارد سیستم شدید");
                    return RedirectToLocal(returnUrl);
                case SignInStatus.LockedOut:
                    this.NotyError(
                        $"دقیقه دوباره امتحان کنید {_userManager.DefaultAccountLockoutTimeSpan} حساب شما قفل شد ! لطفا بعد از ");
                    return View(model);
                case SignInStatus.Failure:
                    this.NotyError(ModelState.GetListOfErrors());
                    return View(model);
                default:
                    this.NotyError(
                        "در این لحظه امکان ورود به  سابت وجود ندارد . مراتب را با مسئولان سایت در میان بگذارید");
                    return View(model);
            }
        }

• We have two new refactorings for global usings, Extract Global Using and Inline Global Using, with Find Usages support for this feature.
• For nullable reference types, we’ve split the “should never be null” warning into two categories: one for those who look at NRT annotation and one for those who have a runtime check for null. We’ve also added a setting to enable runtime enforced not null warnings only, and supported [MemberNotNull] and [MemberNotNullWhen] annotations.
• We’ve implemented generic attributes support for C#11. 

namespace DNT.IDP
{
    public static class Config
    {
        public static List<TestUser> GetUsers()
        {
            return new List<TestUser>
            {
                new TestUser
                {
                    Username = "User 1",
                    // ...

                    Claims = new List<Claim>
                    {
    // ...
                        new Claim("subscriptionlevel", "PayingUser"),
                        new Claim("country", "ir")
                    }
                },
                new TestUser
                {
                    Username = "User 2",
// ...

                    Claims = new List<Claim>
                    {
    // ...
                        new Claim("subscriptionlevel", "FreeUser"),
                        new Claim("country", "be")
                    }
                }
            };
        }

namespace DNT.IDP
{
    public static class Config
    {
        // identity-related resources (scopes)
        public static IEnumerable<IdentityResource> GetIdentityResources()
        {
            return new List<IdentityResource>
            {
   // ...     
                new IdentityResource(
                    name: "country",
                    displayName: "The country you're living in",
                    claimTypes: new List<string> { "country" }),
                new IdentityResource(
                    name: "subscriptionlevel",
                    displayName: "Your subscription level",
                    claimTypes: new List<string> { "subscriptionlevel" })
            };
        }

namespace DNT.IDP
{
    public static class Config
    {
        public static IEnumerable<Client> GetClients()
        {
            return new List<Client>
            {
                new Client
                {
                    ClientName = "Image Gallery",
// ...
                    AllowedScopes =
                    {
    // ...
                        "country",
                        "subscriptionlevel"
                    }
// ...
                }
             };
        }
    }

options.Scope.Add("subscriptionlevel");
options.Scope.Add("country");

options.ClaimActions.MapUniqueJsonKey(claimType: "role", jsonKey: "role");
options.ClaimActions.MapUniqueJsonKey(claimType: "subscriptionlevel", jsonKey: "subscriptionlevel");
options.ClaimActions.MapUniqueJsonKey(claimType: "country", jsonKey: "country");

namespace ImageGallery.MvcClient.WebApp
{
    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddAuthorization(options =>
            {
                options.AddPolicy(
                   name: "CanOrderFrame",
                   configurePolicy: policyBuilder =>
                    {
                        policyBuilder.RequireAuthenticatedUser();
                        policyBuilder.RequireClaim(claimType: "country", requiredValues: "ir");
                        policyBuilder.RequireClaim(claimType: "subscriptionlevel", requiredValues: "PayingUser");
                    });
            });

@if(User.IsInRole("PayingUser"))
{
  <li><a asp-area="" asp-controller="Gallery" asp-action="AddImage">Add an image</a></li>
  <li><a asp-area="" asp-controller="Gallery" asp-action="OrderFrame">Order a framed picture</a></li>
}

@using Microsoft.AspNetCore.Authorization
@inject IAuthorizationService AuthorizationService

@if (User.IsInRole("PayingUser"))
{
  <li><a asp-area="" asp-controller="Gallery" asp-action="AddImage">Add an image</a></li>
}
@if ((await AuthorizationService.AuthorizeAsync(User, "CanOrderFrame")).Succeeded)
{
  <li><a asp-area="" asp-controller="Gallery" asp-action="OrderFrame">Order a framed picture</a></li>
}

namespace ImageGallery.MvcClient.WebApp.Controllers
{
    [Authorize]
    public class GalleryController : Controller
    {
        [Authorize(Policy = "CanOrderFrame")]
        public async Task<IActionResult> OrderFrame()
        {

using System;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.Extensions.Logging;

namespace ImageGallery.WebApi.Services
{
    public class MustOwnImageRequirement : IAuthorizationRequirement
    {
    }

    public class MustOwnImageHandler : AuthorizationHandler<MustOwnImageRequirement>
    {
        private readonly IImagesService _imagesService;
        private readonly ILogger<MustOwnImageHandler> _logger;

        public MustOwnImageHandler(
            IImagesService imagesService,
            ILogger<MustOwnImageHandler> logger)
        {
            _imagesService = imagesService;
            _logger = logger;
        }

        protected override async Task HandleRequirementAsync(
            AuthorizationHandlerContext context, MustOwnImageRequirement requirement)
        {
            var filterContext = context.Resource as AuthorizationFilterContext;
            if (filterContext == null)
            {
                context.Fail();
                return;
            }

            var imageId = filterContext.RouteData.Values["id"].ToString();
            if (!Guid.TryParse(imageId, out Guid imageIdAsGuid))
            {
                _logger.LogError($"`{imageId}` is not a Guid.");
                context.Fail();
                return;
            }

            var subClaim = context.User.Claims.FirstOrDefault(c => c.Type == "sub");
            if (subClaim == null)
            {
                _logger.LogError($"User.Claims don't have the `sub` claim.");
                context.Fail();
                return;
            }

            var ownerId = subClaim.Value;
            if (!await _imagesService.IsImageOwnerAsync(imageIdAsGuid, ownerId))
            {
                _logger.LogError($"`{ownerId}` is not the owner of `{imageIdAsGuid}` image.");
                context.Fail();
                return;
            }

            // all checks out
            context.Succeed(requirement);
        }
    }
}

<Project Sdk="Microsoft.NET.Sdk">
  <ItemGroup>
    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="2.1.0" />
    <PackageReference Include="Microsoft.AspNetCore.Authorization" Version="2.1.1.0" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc.Abstractions" Version="2.1.1.0" />
  </ItemGroup>
</Project>

public class MustOwnImageRequirement : IAuthorizationRequirement
{
}

namespace ImageGallery.WebApi.WebApp
{
    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddAuthorization(authorizationOptions =>
            {
                authorizationOptions.AddPolicy(
                   name: "MustOwnImage",
                   configurePolicy: policyBuilder =>
                    {
                        policyBuilder.RequireAuthenticatedUser();
                        policyBuilder.AddRequirements(new MustOwnImageRequirement());
                    });
            });
            services.AddScoped<IAuthorizationHandler, MustOwnImageHandler>();

[Authorize(Policy ="MustOwnImage")]

namespace ImageGallery.WebApi.WebApp.Controllers
{
    [Route("api/images")]
    [Authorize]
    public class ImagesController : Controller
    {
        [HttpGet("{id}", Name = "GetImage")]
        [Authorize("MustOwnImage")]
        public async Task<IActionResult> GetImage(Guid id)
        {
        }

        [HttpDelete("{id}")]
        [Authorize("MustOwnImage")]
        public async Task<IActionResult> DeleteImage(Guid id)
        {
        }

        [HttpPut("{id}")]
        [Authorize("MustOwnImage")]
        public async Task<IActionResult> UpdateImage(Guid id, [FromBody] ImageForUpdateModel imageForUpdate)
        {
        }
    }
}

ConditionalAttribute

class Program
{
    public static void Main(string[] args)
    {
        DebugMode();
    }

    [Conditional("DEBUG")]
    public static void DebugMode()
    {
        Console.WriteLine( "Debug mode" );
    }
}

#define ReleaseMode

[System.Flags]
public enum Permission
{
    View = 1,
    Insert = 2,
    Update = 4,
    Delete = 8
}

public static void Main( string[] args )
{
    var permission = ( Permission.View | Permission.Insert ).ToString();
    Console.WriteLine( permission ); // Displays ‘View, Insert’

    var userPermission = Permission.View | Permission.Insert | Permission.Update | Permission.Delete;
    // To retrieve the value from property you can do this
    if ( ( userPermission & Permission.Delete ) == Permission.Delete )
    {
        Console.WriteLine( "کاربر دارای مجوز دسترسی به عملیات حذف می‌باشد" );
    }

    // In .NET 4 and later
    Console.WriteLine( userPermission.HasFlag( Permission.Delete )
                            ? "کاربر دارای مجوز دسترسی به عملیات حذف می‌باشد"
                            : "کاربر مجوز دسترسی به عملیات حذف را ندارد");
}

public static void Main( string[] args )
{
    var sourceCode = @"class DotNetTips
                        {
                            public void Print()
                            {
                                System.Console.WriteLine("".Net Tips"");
                            }
                        }";
    var compiledAssembly = CompileSourceCodeDom( sourceCode );
    ExecuteFromAssembly( compiledAssembly );
}

static Assembly CompileSourceCodeDom( string sourceCode )
{
    CodeDomProvider csharpCodeProvider = new CSharpCodeProvider();
    var cp = new CompilerParameters
                {
                    GenerateExecutable = false
                };
    cp.ReferencedAssemblies.Add( "System.dll" );
    var cr = csharpCodeProvider.CompileAssemblyFromSource( cp,
                                                            sourceCode );
    return cr.CompiledAssembly;
}

Install-Package Microsoft.CodeAnalysis

public static void Main(string[] args)
{
    var sourceCode = @"class DotNetTips
                        {
                            public void Print()
                            {
                                System.Console.WriteLine("".Net Tips"");
                            }
                        }";
    var compiledAssembly = CompileSourceRoslyn( sourceCode );
    ExecuteFromAssembly( compiledAssembly );
}

private static Assembly CompileSourceRoslyn(string sourceCode)
{
    using ( var memoryStream = new MemoryStream() )
    {
        var assemblyFileName = string.Concat( Guid.NewGuid().ToString(),
                                                ".dll" );
        var compilation = CSharpCompilation.Create( assemblyFileName,
                                                    new[]
                                                    {
                                                        CSharpSyntaxTree.ParseText( sourceCode )
                                                    },
                                                    new[]
                                                    {
                                                        MetadataReference.CreateFromFile( typeof( object ).Assembly.Location )
                                                    },
                                                    new CSharpCompilationOptions( OutputKind.DynamicallyLinkedLibrary ) );
        compilation.Emit( memoryStream );
        var assembly = Assembly.Load( memoryStream.GetBuffer() );
        return assembly;
    }
}

static void ExecuteFromAssembly( Assembly assembly )
{
    var helloKittyPrinterType = assembly.GetType( "DotNetTips" );
    var printMethod = helloKittyPrinterType.GetMethod( "Print" );
    var kitty = assembly.CreateInstance( "DotNetTips" );
    printMethod.Invoke( kitty,
                        BindingFlags.InvokeMethod,
                        null,
                        null,
                        CultureInfo.CurrentCulture );
}

    // Main method 
    public static void Main()
    {
        // Local Function 
        void AddValue(int a, int b)
        {
            Console.WriteLine("Value of a is: " + a);
            Console.WriteLine("Value of b is: " + b);
            Console.WriteLine("Sum of a and b is: {0}", a + b);
            Console.WriteLine();
        }

        // Calling Local function 
        AddValue(20, 40);
        AddValue(40, 60);
    }

        static void Main(string[] args)
        {
            static void DoAction()
            {
                // DoAction

                Console.WriteLine("DoAction...");
            }

#if DEBUG
            DoAction();
#endif
        }

        static void Main(string[] args)
        {
            [Conditional("DEBUG")]
            static void DoAction()
            {
                // Do Action Here

                Console.WriteLine("Do Action...");
            }

            DoAction();
        }

ErrorCS8400Feature 'local function attributes' is not available in C# 8.0. Please use language version 9.0 or greater.

 • All .NET application (Console, ASP.NET 4, WinForms, WPF)
 • Mac and Linux applications (Mono)
 • UWP (Universal Windows Platform)
 • ASP.NET Core applications
 • Can use EF Core in Windows phone and Windows store app

PM> Install-Package Microsoft.EntityFrameworkCore.SqlServer
PM> Install-Package Microsoft.EntityFrameworkCore.Tools -Pre
PM> Install-Package Microsoft.EntityFrameworkCore.SqlServer.Design

{
    "dependencies": {
       // same as before
        "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0",
        "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
        "Microsoft.EntityFrameworkCore.SqlServer.Design": "1.0.0"
    }
}

{
    "dependencies": {
       // same as before
        "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0",
        "Microsoft.EntityFrameworkCore.Tools": {
            "version": "1.0.0-preview2-final",
            "type": "build"
        },
        "Microsoft.EntityFrameworkCore.SqlServer.Design": {
            "version": "1.0.0",
            "type": "build"
        }
    },

    "tools": {
       // same as before
        "Microsoft.EntityFrameworkCore.Tools": {
            "version": "1.0.0-preview2-final",
            "imports": [
                "portable-net45+win8"
            ]
        }   
   }
}

{
    "dependencies": {
       // same as before
        "Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore": "1.0.0"
    }
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
   if (env.IsDevelopment())
   {
      app.UseDatabaseErrorPage();
   }

namespace Core1RtmEmptyTest.Entities
{
    public class Person
    {
        public int PersonId { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
    }
}

using Microsoft.EntityFrameworkCore;

namespace Core1RtmEmptyTest.Entities
{
    public class ApplicationDbContext : DbContext
    {
        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
        {
        }

        public DbSet<Person> Persons { get; set; }
    }
}

protected DbContext()
   : this((DbContextOptions) new DbContextOptions<DbContext>())
{
}

public DbContext([NotNull] DbContextOptions options)
{
  // …
}

using Microsoft.EntityFrameworkCore;

namespace Core1RtmEmptyTest.Entities
{
    public class ApplicationDbContext : DbContext
    {
        public DbSet<Person> Persons { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseSqlServer(@"... connection string ...");
        }
    }
}

{
    "ConnectionStrings": {
        "ApplicationDbContextConnection": "Data Source=(local);Initial Catalog=TestDbCore2016;Integrated Security = true"
    }
}

    public class Startup
    {
        public IConfigurationRoot Configuration { set; get; }

        public Startup(IHostingEnvironment env)
        {
            var builder = new ConfigurationBuilder()
                                .SetBasePath(env.ContentRootPath)
                                .AddJsonFile("appsettings.json", reloadOnChange: true, optional: false)
                                .AddJsonFile($"appsettings.{env}.json", optional: true);
            Configuration = builder.Build();
        }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSingleton<IConfigurationRoot>(provider => { return Configuration; });
            services.AddDbContext<ApplicationDbContext>(options =>
            {
                options.UseSqlServer(Configuration["ConnectionStrings:ApplicationDbContextConnection"]);
            });

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;

namespace Core1RtmEmptyTest.Entities
{
    public class ApplicationDbContext : DbContext
    {
        private readonly IConfigurationRoot _configuration;

        public ApplicationDbContext(IConfigurationRoot configuration)
        {
            _configuration = configuration;
        }

        //public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
        //{
        //}

        public DbSet<Person> Persons { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseSqlServer(_configuration["ConnectionStrings:ApplicationDbContextConnection"]);
        }
    }
}

public void ConfigureServices(IServiceCollection services)
{
    services.AddDbContext<ApplicationDbContext>();

using System.Linq;
using Core1RtmEmptyTest.Entities;
using Microsoft.AspNetCore.Mvc;

namespace Core1RtmEmptyTest.Controllers
{
    public class TestDBController : Controller
    {
        private readonly ApplicationDbContext _ctx;

        public TestDBController(ApplicationDbContext ctx)
        {
            _ctx = ctx;
        }

        public IActionResult Index()
        {
            var name = _ctx.Persons.First().FirstName;
            return Json(new { firstName = name });
        }
    }
}

Compiler – Support for ReadOnlyReferences

class Type1
{
   // This parameter will have an attribute (in IL) of type `IsReadOnly`
   public void Method1(ref readonly int param1) { throw null; }

   // This method return type will have an attribute (in IL) of type `IsReadOnly`
   public ref readonly int Method2() { throw null; }
}

static void firstCompilation()
{
    var tree = CSharpSyntaxTree.ParseText("class Foo { void Bar(int x) {} }");
 
    var mscorlibReference = MetadataReference.CreateFromFile(typeof (object).Assembly.Location);
 
    var compilationOptions = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary);
 
    var comp = CSharpCompilation.Create("Demo")
                                .AddSyntaxTrees(tree)
                                .AddReferences(mscorlibReference)
                                .WithOptions(compilationOptions);
 
    var res = comp.Emit("Demo.dll");
 
    if (!res.Success)
    {
        foreach (var diagnostic in res.Diagnostics)
        {
            Console.WriteLine(diagnostic.GetMessage());
        }
    }
}

        static void semanticQuestions()
        {
            var tree = CSharpSyntaxTree.ParseText(@"
using System;
 
class Foo
{
    public static explicit operator DateTime(Foo f)
    {
        throw new NotImplementedException();
    }
 
    void Bar(int x)
    {
    }
}");
 
            var mscorlib = MetadataReference.CreateFromFile(typeof (object).Assembly.Location);
            var options = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary);
            var comp = CSharpCompilation.Create("Demo").AddSyntaxTrees(tree).AddReferences(mscorlib).WithOptions(options);
            // var res = comp.Emit("Demo.dll");
 
            // boxing
            var conv1 = comp.ClassifyConversion(
                comp.GetSpecialType(SpecialType.System_Int32),
                comp.GetSpecialType(SpecialType.System_Object)
                );
 
            // unboxing
            var conv2 = comp.ClassifyConversion(
                comp.GetSpecialType(SpecialType.System_Object),
                comp.GetSpecialType(SpecialType.System_Int32)
                );
 
            // explicit reference conversion
            var conv3 = comp.ClassifyConversion(
                comp.GetSpecialType(SpecialType.System_Object),
                comp.GetTypeByMetadataName("Foo")
                );
 
            // explicit user-supplied conversion
            var conv4 = comp.ClassifyConversion(
                comp.GetTypeByMetadataName("Foo"),
                comp.GetSpecialType(SpecialType.System_DateTime)
                );
        }

namespace PdfReportSamples.Models
{
    public class UserWorkedHours
    {
        public int Id { set; get; }
        public string Name { set; get; }
        public int DayNumber { set; get; }
        public int Month { set; get; }
        public int Year { set; get; }
        public string Description { set; get; }
    }
}

        private static List<UserWorkedHours> createUsersWorkedHours()
        {
            var usersWorkedHours = new List<UserWorkedHours>();
            for (int i = 1; i < 11; i++)
            {
                for (int j = 1; j < 28; j++)
                {
                    usersWorkedHours.Add(new UserWorkedHours
                    {
                        Id = i,
                        Name = "کارمند " + i,
                        Year = 1391, // سال و ماه بر اساس نوع تقویم انتخابی مشخص می‌شود
                        Month = i,
                        DayNumber = j,
                        Description = i % 2 == 0 ? "05:00" : "08:00"
                    });
                }
            }
            return usersWorkedHours;
        }

using System.Collections.Generic;

namespace PdfRpt.Calendar
{
    public class CalendarData
    {
        public int Month { set; get; }
        public int Year { set; get; }
        public IList<DayInfo> MonthDaysInfo { set; get; }
    }
}

namespace PdfRpt.Calendar
{
    public class DayInfo
    {
        public int DayNumber { set; get; }
        public int Month { set; get; }
        public int Year { set; get; }

        public string Description { set; get; }
        public bool ShowDescriptionInFooter { set; get; }
    }
}

        public static IList<UserMonthCalendar> CreateDataSource()
        {
            var usersWorkedHours = createUsersWorkedHours();
            // Mapping a list of normal Users WorkedHours to a list of Users + CalendarData
            return usersWorkedHours
                        .GroupBy(x => new
                        {
                            Id = x.Id,
                            Name = x.Name
                        })
                        .Select(
                                 x => new UserMonthCalendar
                                 {
                                     Id = x.Key.Id,
                                     Name = x.Key.Name,
                                     // Calendar's cell data type should be PdfRpt.Calendar.CalendarData
                                     MonthCalendarData = new CalendarData
                                     {
                                         Year = x.First().Year,
                                         Month = x.First().Month,
                                         MonthDaysInfo = x.ToList().Select(y => new DayInfo
                                         {
                                             Description = y.Description,
                                             ShowDescriptionInFooter = false,
                                             DayNumber = y.DayNumber
                                         }).ToList()
                                     }
                                 }).ToList();
        }

using PdfRpt.Calendar;

namespace PdfReportSamples.Models
{
    public class UserMonthCalendar
    {
        public int Id { set; get; }
        public string Name { set; get; }
        // Calendar's cell data type should be CalendarData
        public CalendarData MonthCalendarData { set; get; }
    }
}

                columns.AddColumn(column =>
                {
                    // Calendar's cell data type should be PdfRpt.Calendar.CalendarData
                    column.PropertyName<UserMonthCalendar>(x => x.MonthCalendarData);
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(3);
                    column.Width(3);
                    column.HeaderCell("تقویم ماهیانه");
                    column.ColumnItemsTemplate(itemsTemplate =>
                    {
                        itemsTemplate.MonthCalendar(new CalendarAttributes
                        {
                            CalendarType = CalendarType.PersianCalendar,
                            UseLongDayNamesOfWeek = true,
                            Padding = 3,
                            DescriptionHorizontalAlignment = HorizontalAlignment.Center,
                            SplitRows = true,
                            CellsCustomizer = info =>
                            {
                                if (info.Year == 1391 && info.Month == 1 && info.DayNumber == 1)
                                {
                                    info.NumberCell.BackgroundColor = new BaseColor(System.Drawing.Color.LimeGreen);
                                    var phrase = info.NumberCell.Phrase;
                                    foreach (var chunk in phrase.Chunks)
                                        chunk.Font.Color = new BaseColor(System.Drawing.Color.Yellow);
                                }
                            }
                        });
                    });
                });