try
            {
                using (WebSession mywebsession = WebCore.CreateWebSession(
new WebPreferences() { CustomCSS = "::-webkit-scrollbar { visibility: hidden; }" }))
                {
                    using (var view = WebCore.CreateWebView(1240, 1000, mywebsession))
                    {
                        view.Source = new Uri("https://site.com/");

                        bool finishedLoading = false;
                        view.LoadingFrameComplete += (s, e) =>
                        {
                            if (e.IsMainFrame)
                                finishedLoading = true;
                        };

                        while (!finishedLoading)
                        {
                            Thread.Sleep(100);
                            WebCore.Update();
                        }

                        using (var surface = (BitmapSurface)view.Surface)
                        {
                            surface.SaveToJPEG("result.jpg");
                        }
                    }
                }
            }
            finally
            {
                WebCore.Shutdown();
            }

 System.InvalidOperationException: You are attempting to re-initialize the WebCore.
The WebCore must only be initialized once per process and must be shut down only when the process exits.

 System.AccessViolationException: Attempted to read or write protected memory.
This is often an indication that other memory is corrupt. at Awesomium.Core.NativeMethods.WebCore_CreateWebView_1(HandleRef jarg1, Int32 jarg2, Int32 jarg3, HandleRef jarg4)

using System;
using System.Collections.Concurrent;
using System.IO;
using System.Threading;
using System.Web;
using Awesomium.Core;

namespace AwesomiumWebModule
{
    public class AwesomiumModule : IHttpModule
    {
        private static readonly Thread WorkerThread = new Thread(awesomiumWorker);
        private static readonly ConcurrentQueue<AwesomiumRequest> TaskQueue = new ConcurrentQueue<AwesomiumRequest>();
        private static bool _isRunning = true;

        static AwesomiumModule()
        {
            WorkerThread.Start();
        }       

        private static void awesomiumWorker()
        {
            while (_isRunning)
            {
                if (TaskQueue.Count != 0)
                {
                    AwesomiumRequest outRequest;
                    if (TaskQueue.TryDequeue(out outRequest))
                    {
                        var img = AwesomiumThumbnail.FetchWebPageThumbnail(outRequest);
                        File.WriteAllBytes(outRequest.SavePath, img);
                        Thread.Sleep(500);
                    }
                }
                Thread.Sleep(5);
            }
        }

        public void Dispose()
        {
            _isRunning = false;
            WebCore.Shutdown();
        }

        public void Init(HttpApplication context)
        {
            context.EndRequest += endRequest;
        }

        static void endRequest(object sender, EventArgs e)
        {
            var url = HttpContext.Current.Items[Constants.AwesomiumRequest] as AwesomiumRequest;
            if (url!=null)
            {
                TaskQueue.Enqueue(url);
            }
        }
    }
}

<?xml version="1.0"?>
<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.0" />
    <httpModules>
      <add name="AwesomiumWebModule" type="AwesomiumWebModule.AwesomiumModule"/>
    </httpModules>
  </system.web>

  <system.webServer>
    <validation validateIntegratedModeConfiguration="false"/>
    <modules>
      <add name="AwesomiumWebModule" type="AwesomiumWebModule.AwesomiumModule"/>
    </modules>
  </system.webServer>
</configuration>

        protected void btnStart_Click(object sender, EventArgs e)
        {
            var host = new Uri(txtUrl.Text).Host;
            HttpContext.Current.Items.Add(Constants.AwesomiumRequest, new AwesomiumRequest
            {
                Url = txtUrl.Text,
                SavePath = Path.Combine(HttpRuntime.AppDomainAppPath, "App_Data\\Thumbnails\\" + host + ".jpg"),
                TempDir = Path.Combine(HttpRuntime.AppDomainAppPath, "App_Data\\Temp")
            });
            lblInfo.Text = "Please wait. Your request will be served shortly.";
        }

@using BlazorWasm.Client.Pages.Authentication

@using System.Security.Claims

@inject NavigationManager NavigationManager

if(AuthState is not null)
{
    <div class="alert alert-danger">
        <p>You [@AuthState.User.Identity.Name] do not have access to the requested page</p>
        <div>
            Your roles:
            <ul>
            @foreach (var claim in AuthState.User.Claims.Where(c => c.Type == ClaimTypes.Role))
            {
                <li>@claim.Value</li>
            }
            </ul>
        </div>
    </div>
}

@code
{
    [CascadingParameter]
    private Task<AuthenticationState> AuthenticationState {set; get;}

    AuthenticationState AuthState;

    protected override async Task OnInitializedAsync()
    {
        AuthState = await AuthenticationState;
        if (!IsAuthenticated(AuthState))
        {
            var returnUrl = NavigationManager.ToBaseRelativePath(NavigationManager.Uri);
            if (string.IsNullOrEmpty(returnUrl))
            {
                NavigationManager.NavigateTo("login");
            }
            else
            {
                NavigationManager.NavigateTo($"login?returnUrl={Uri.EscapeDataString(returnUrl)}");
            }
        }
    }

    private bool IsAuthenticated(AuthenticationState authState) =>
            authState?.User?.Identity is not null && authState.User.Identity.IsAuthenticated;
}

<NotAuthorized>
    <RedirectToLogin></RedirectToLogin>
</NotAuthorized>

using System;
using BlazorServer.Common;
using Microsoft.AspNetCore.Authorization;

namespace BlazorWasm.Client.Utils
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = true, Inherited = true)]
    public class RolesAttribute : AuthorizeAttribute
    {
        public RolesAttribute(params string[] roles)
        {
            Roles = $"{ConstantRoles.Admin},{string.Join(",", roles)}";
        }
    }
}

@attribute [Roles(ConstantRoles.Customer, ConstantRoles.Employee)]

namespace BlazorWasm.WebApi.Controllers
{
    [Route("api/[controller]")]
    [Authorize(Roles = "Editor")]
    public class MyProtectedEditorsApiController : Controller
    {
        [HttpGet]
        public IActionResult Get()
        {
            return Ok(new ProtectedEditorsApiDTO
            {
                Id = 1,
                Title = "Hello from My Protected Editors Controller!",
                Username = this.User.Identity.Name
            });
        }
    }
}

namespace BlazorWasm.Client.Services
{
    public class ClientHttpInterceptorService : DelegatingHandler
    {
        private readonly NavigationManager _navigationManager;
        private readonly ILocalStorageService _localStorage;
        private readonly IJSRuntime _jsRuntime;

        public ClientHttpInterceptorService(
                NavigationManager navigationManager,
                ILocalStorageService localStorage,
                IJSRuntime JsRuntime)
        {
            _navigationManager = navigationManager ?? throw new ArgumentNullException(nameof(navigationManager));
            _localStorage = localStorage ?? throw new ArgumentNullException(nameof(localStorage));
            _jsRuntime = JsRuntime ?? throw new ArgumentNullException(nameof(JsRuntime));
        }

        protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
        {
            // How to add a JWT to all of the requests
            var token = await _localStorage.GetItemAsync<string>(ConstantKeys.LocalToken);
            if (token is not null)
            {
                request.Headers.Authorization = new AuthenticationHeaderValue("bearer", token);
            }

            var response = await base.SendAsync(request, cancellationToken);

            if (!response.IsSuccessStatusCode)
            {
                await _jsRuntime.ToastrError($"Failed to call `{request.RequestUri}`. StatusCode: {response.StatusCode}.");

                switch (response.StatusCode)
                {
                    case HttpStatusCode.NotFound:
                        _navigationManager.NavigateTo("/404");
                        break;
                    case HttpStatusCode.Forbidden: // 403
                    case HttpStatusCode.Unauthorized: // 401
                        _navigationManager.NavigateTo("/unauthorized");
                        break;
                    default:
                        _navigationManager.NavigateTo("/500");
                        break;
                }
            }

            return response;
        }
    }
}

@page "/unauthorized"

<div class="alert alert-danger mt-3">
    <p>You don't have access to the requested resource.</p>
</div>

dotnet add package Microsoft.Extensions.Http

namespace BlazorWasm.Client
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebAssemblyHostBuilder.CreateDefault(args);
            //...

            // builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
            /*builder.Services.AddScoped(sp => new HttpClient
            {
                BaseAddress = new Uri(builder.Configuration.GetValue<string>("BaseAPIUrl"))
            });*/

            // dotnet add package Microsoft.Extensions.Http
            builder.Services.AddHttpClient(
                    name: "ServerAPI",
                    configureClient: client =>
                    {
                        client.BaseAddress = new Uri(builder.Configuration.GetValue<string>("BaseAPIUrl"));
                        client.DefaultRequestHeaders.Add("User-Agent", "BlazorWasm.Client 1.0");
                    }
                )
                .AddHttpMessageHandler<ClientHttpInterceptorService>();
            builder.Services.AddScoped<ClientHttpInterceptorService>();
            builder.Services.AddScoped(sp => sp.GetRequiredService<IHttpClientFactory>().CreateClient("ServerAPI"));

            //...
        }
    }
}

• struct: نوع آرگومان ارسالی باید value-type باشد؛ بجز مقادیر غیر NULL.

class C<T> where T : struct {} // value type

• class: نوع آرگومان ارسالی باید reference-type (کلاس، اینترفیس، عامل، آرایه) باشد.

class D<T> where T : class {} // reference type

• ()new: آرگومان ارسالی باید یک سازنده عمومی بدون پارامتر باشد. وقتی این محدوده کننده را با سایر محدود کننده‌ها به صورت همزمان استفاده می‌کنید، این محدوده کننده باید در آخر ذکر شود.

class H<T> where T : new() {} // no parameter constructor

public void MyMethod< T >()
       where T : IComparable, MyBaseClass, new ()
{
  ...
}

• <base class name>: نوع آرگومان ارسالی باید از کلاس ذکر شده یا کلاس مشتق شده آن باشد.

class B {}
class E<T> where T : B {} // be/derive from base class

• <interface name>: نوع آرگومان ارسالی باید اینترفیس ذکر شده یا پیاده ساز آن اینترفیس باشد.

interface I {}
class G<T> where T : I {} // be/implement interface

• U: نوع آرگومان ارسالی باید از نوع یا مشتق شده U باشد.

class F<T, U> where T : U {} // be/derive from U

1. Runtime casting
2. استفاده از محدود کننده‌ها

public TestLocalController(
            IStringLocalizer<TestLocalController> stringLocalizer,
            IHtmlLocalizer<TestLocalController> htmlLocalizer)

private readonly IStringLocalizer _stringLocalizer;
private readonly IHtmlLocalizer _htmlLocalizer;
 
public TestLocalController(
    IStringLocalizerFactory stringLocalizerFactory,
    IHtmlLocalizerFactory htmlLocalizerFactory)
{
    _stringLocalizer = stringLocalizerFactory.Create(
        baseName: "Controllers.TestLocalController" /*مشخصات کنترلر جاری*/,
        location: "Core1RtmTestResources.ExternalResources" /*نام اسمبلی ثالث*/);
    _htmlLocalizer = htmlLocalizerFactory.Create(
        baseName: "Controllers.TestLocalController" /*مشخصات کنترلر جاری*/,
        location: "Core1RtmTestResources.ExternalResources" /*نام اسمبلی ثالث*/);
}

 [MapFrom(typeof (Student), ignoreAllNonExistingProperty: true, alsoCopyMetadata: true)]
 public class AdminStudentViewModel
 {
     // [IgnoreMap]
     public int Id { set; get; }

     [MapForMember("Name")]
     public string FirstName { set; get; }

     [MapForMember("Family")]
     public string LastName { set; get; }

     public string Email { set; get; }

     [MapForMember("RegisterDateTime")]
     public string RegisterDateTimePersian { set; get; }

     [UseValueResolver(typeof (BookCountValueResolver))]
     public int BookCounts { set; get; }

     [UseValueResolver(typeof (BookPriceValueResolver))]
     public decimal BookPrice { set; get; }
 };

[AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
public class MapFromAttribute : Attribute
{
    public Type SourceType { get; private set; }
    public bool IgnoreAllNonExistingProperty { get; private set; }
    public bool AlsoCopyMetadata { get; private set; }    //Go to: https://www.dntips.ir/courses/topic/16/cb36bc2e-4263-431e-86a5-236322cb5576

    public MapFromAttribute(Type sourceType, bool ignoreAllNonExistingProperty = false,
        bool alsoCopyMetadata = false)
    {
        SourceType = sourceType;
        IgnoreAllNonExistingProperty = ignoreAllNonExistingProperty;
        AlsoCopyMetadata = alsoCopyMetadata;
    }
};

[AttributeUsage(AttributeTargets.Property)]
public class IgnoreMapAttribute : Attribute {};

[AttributeUsage(AttributeTargets.Property)]
public class MapForMemberAttribute : Attribute
{
    public string MemberToMap { get; private set; }
    public MapForMemberAttribute(string memberToMap)
    {
        MemberToMap = memberToMap;
    }
};

[AttributeUsage(AttributeTargets.Property)]
public class UseValueResolverAttribute : Attribute
{
    public IValueResolver ValueResolver { get; private set; }
    public UseValueResolverAttribute(Type valueResolver)
    {
        ValueResolver = valueResolver.GetConstructors()[0].Invoke(new object[] {}) as IValueResolver;
    }
};

public class MyClass : INotifyPropertyChanged
{
    private string _myValue;
    public event PropertyChangedEventHandler PropertyChanged;
    public string MyValue
    {
        get
        {
            return _myValue;
        }
        set
        {
            _myValue = value;
            RaisePropertyChanged("MyValue");
        }
    }
    protected void RaisePropertyChanged(string propertyName)
    {
        if (PropertyChanged != null)
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
    }
}

public class MyDreamClass : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;
    public string MyValue { get; set; }
}

 PM> Install-Package structuremap
PM> Install-Package Castle.Core

namespace AOP01.Services
{
    public interface ITestService
    {
        int GetCount();
    }
}

namespace AOP01.Services
{
    public class TestService: ITestService
    {     
        public int GetCount()
        {
            return 10; //این فقط یک مثال است برای بررسی تزریق وابستگی‌ها
        }
    }
}

using AOP01.Services;
using AOP01.Core;

namespace AOP01.ViewModels
{
    public class TestViewModel  : BaseViewModel
    {
        private readonly ITestService _testService;
        //تزریق وابستگی‌ها در سازنده کلاس
        public TestViewModel(ITestService testService)
        {
            _testService = testService;
        }

        // Note: it's a virtual property.
        public virtual string Text { get; set; }
    }
}

using System.ComponentModel;

namespace AOP01.Core
{
    public abstract class BaseViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        public void RaisePropertyChanged(string propertyName)
        {
            var handler = PropertyChanged;

            if (handler != null)
                handler(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}

using System;
using Castle.DynamicProxy;

namespace AOP01.Core
{
    public class NotifyPropertyInterceptor : IInterceptor
    {
        public void Intercept(IInvocation invocation)
        {
            // متد ست، ابتدا فراخوانی می‌شود و سپس کار اطلاع رسانی را انجام خواهیم داد
            invocation.Proceed();

            if (invocation.Method.Name.StartsWith("set_"))
            {
                var propertyName = invocation.Method.Name.Substring(4);
                raisePropertyChangedEvent(invocation, propertyName, invocation.TargetType);
            }
        }

        void raisePropertyChangedEvent(IInvocation invocation, string propertyName, Type type)
        {
            var methodInfo = type.GetMethod("RaisePropertyChanged");
            if (methodInfo == null)
            {
                if (type.BaseType != null)
                    raisePropertyChangedEvent(invocation, propertyName, type.BaseType);
            }
            else
            {
                methodInfo.Invoke(invocation.InvocationTarget, new object[] { propertyName });
            }
        }
    }
}

using System.Linq;
using System.Windows;
using AOP01.Core;
using AOP01.Services;
using Castle.DynamicProxy;
using StructureMap;

namespace AOP01
{
    public partial class App
    {
        protected override void OnStartup(StartupEventArgs e)
        {
            base.OnStartup(e);

            ObjectFactory.Initialize(x =>
            {
                x.For<ITestService>().Use<TestService>();

                var dynamicProxy = new ProxyGenerator();
                x.For<BaseViewModel>().EnrichAllWith(vm =>
                {
                    var constructorArgs = vm.GetType()
                            .GetConstructors()
                            .FirstOrDefault()
                            .GetParameters()
                            .Select(p => ObjectFactory.GetInstance(p.ParameterType))
                            .ToArray();

                    return dynamicProxy.CreateClassProxy(
                                classToProxy: vm.GetType(),
                                constructorArguments: constructorArgs,
                                interceptors: new[] { new NotifyPropertyInterceptor() });
                });
            });
        }
    }
}

<Window x:Class="AOP01.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <TextBox Text="{Binding Text, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
    </Grid>
</Window>

using AOP01.ViewModels;
using StructureMap;

namespace AOP01
{
    public partial class MainWindow
    {
        public MainWindow()
        {
            InitializeComponent();

            //علاوه بر تشکیل پروکسی
            //کار وهله سازی و تزریق وابستگی‌ها در سازنده را هم به صورت خودکار انجام می‌دهد
            var vm = ObjectFactory.GetInstance<TestViewModel>(); 
            this.DataContext = vm;
        }
    }
}

public class EfOurServiceService : IOurServiceService
    {
        readonly IUnitOfWork _uow;
        readonly IDbSet<OurService> _ourServices;
        readonly IDbSet<OurServiceCategory> _ourServiceCategories;
        public EfOurServiceService(IUnitOfWork uow)
        {
            _uow = uow;
            _ourServices = _uow.Set<OurService>();
            _ourServiceCategories = _uow.Set<OurServiceCategory>();
        }


public IList GetMasterDetailsFilterLang(string language)
        {
            var query = (_ourServiceCategories
                           .Where(c => (c.Language == language))
                           .Select(
                              c =>
                                 new
                                 {
                                     CatId=c.Id,
                                     CatName=c.Title,
                                     OurServices = c.OurServices
                                        .Select(
                                           o =>
                                              new
                                              {
                                                 ServId= o.Id,
                                                 ServName= o.Title
                                              }
                                        )
                                 }
                           ));

            var ss = query.ToList();

//در اینجا که در لایه سرویس در پروژه ای جداگانه است به ایتم‌های کوئری دسترسی کامل دارم
            foreach (var master in ss)
            {
                var s = master.CatId;
                foreach (var details in master.OurServices)
                {
                    var cc = details.ServName;
                }
            }

            return ss;
        }
}

public string CreateServiceMnu()
    {
        var ds = OurServiceService.GetMasterDetailsFilterLang(_LangSar);

        foreach (var master in ds)
        {
            var s = master.CatId;
            foreach (var details in master.OurServices)
            {
                var cc = details.ServName;
            }
        }
        return string.Empty;
    }