[ServiceContract]
    public interface IScannerService
    {
        [OperationContract]
        [WebInvoke(Method = "GET",
           BodyStyle = WebMessageBodyStyle.Wrapped,
           RequestFormat = WebMessageFormat.Json,
           ResponseFormat = WebMessageFormat.Json,
           UriTemplate = "GetScan")]
        string GetScan();
    }

    public class ScannerService : IScannerService
    {
        public string GetScan()
        {
            // TODO Add code here
        }
    }

using WIA;

        public string GetScan()
        {
            var imgResult = String.Empty;
            var dialog = new CommonDialogClass();
            try
            {
                // نمایش فرم پیشفرض اسکنر
                var image = dialog.ShowAcquireImage(WiaDeviceType.ScannerDeviceType);
                
                // ذخیره تصویر در یک فایل موقت
                var filename = Path.GetTempFileName();
                image.SaveFile(filename);
                var img = Image.FromFile(filename);

                // img جهت ارسال سمت کاربر و نمایش در تگ Base64 تبدیل تصویر به 
                imgResult = ImageHelper.ImageToBase64(img, ImageFormat.Jpeg);
            }
            catch
            {
                // از آنجاییه که امکان نمایش خطا وجود ندارد در صورت بروز خطا رشته خالی 
                // بازگردانده می‌شود که به معنای نبود تصویر می‌باشد
            }

            return imgResult;
        }

        public static string ImageToBase64(Image image, System.Drawing.Imaging.ImageFormat format)
        {
            if (image != null)
            {
                using (MemoryStream ms = new MemoryStream())
                {
                    // Convert Image to byte[]
                    image.Save(ms, format);
                    byte[] imageBytes = ms.ToArray();

                    // Convert byte[] to Base64 String
                    string base64String = Convert.ToBase64String(imageBytes);
                    return base64String;
                }
            }
            return String.Empty;
        }

        private readonly Uri _baseAddress = new Uri("http://localhost:6019");
        private ServiceHost _host;

        private void Form1_Load(object sender, EventArgs e)
        {
            _host = new ServiceHost(typeof(WcfServiceScanner.ScannerService), _baseAddress);
            _host.Open();
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            _host.Close();
        }

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>

  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="BehaviourMetaData">
          <serviceMetadata httpGetEnabled="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <services>
      <service name="WcfServiceScanner.ScannerService"
               behaviorConfiguration="BehaviourMetaData">
        <endpoint address=""
                  binding="basicHttpBinding"
                  contract="WcfServiceScanner.IScannerService" />
      </service>
    </services>
  </system.serviceModel>

</configuration>

<a href="#" id="get-scan">Get Scan</a>
<img src="" id="img-scanned" />
<script>
    $("#get-scan").click(function () {
        var url = 'http://localhost:6019/';
        $.get(url, function (data) {
            $("#img-scanned").attr("src","data:image/Jpeg;base64,  "+ data.GetScanResult);
        });
    });
</script>

    public class CORSSupport : IDispatchMessageInspector
    {
        Dictionary<string, string> requiredHeaders;
        public CORSSupport(Dictionary<string, string> headers)
        {
            requiredHeaders = headers ?? new Dictionary<string, string>();
        }

        public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel, System.ServiceModel.InstanceContext instanceContext)
        {
            var httpRequest = request.Properties["httpRequest"] as HttpRequestMessageProperty;
            if (httpRequest.Method.ToLower() == "options")
                instanceContext.Abort();
            return httpRequest;
        }

        public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
        {
            var httpResponse = reply.Properties["httpResponse"] as HttpResponseMessageProperty;
            var httpRequest = correlationState as HttpRequestMessageProperty;

            foreach (var item in requiredHeaders)
            {
                httpResponse.Headers.Add(item.Key, item.Value);
            }
            var origin = httpRequest.Headers["origin"];
            if (origin != null)
                httpResponse.Headers.Add("Access-Control-Allow-Origin", origin);

            var method = httpRequest.Method;
            if (method.ToLower() == "options")
                httpResponse.StatusCode = System.Net.HttpStatusCode.NoContent;

        }
    }

    // Simply apply this attribute to a DataService-derived class to get
    // CORS support in that service
    [AttributeUsage(AttributeTargets.Class)]
    public class CORSSupportBehaviorAttribute : Attribute, IServiceBehavior
    {
        #region IServiceBehavior Members

        void IServiceBehavior.AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, System.Collections.ObjectModel.Collection<ServiceEndpoint> endpoints, BindingParameterCollection bindingParameters)
        {
        }

        void IServiceBehavior.ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
            var requiredHeaders = new Dictionary<string, string>();

            //Chrome doesn't accept wildcards when authorization flag is true
            //requiredHeaders.Add("Access-Control-Allow-Origin", "*");
            requiredHeaders.Add("Access-Control-Request-Method", "POST,GET,PUT,DELETE,OPTIONS");
            requiredHeaders.Add("Access-Control-Allow-Headers", "Accept, Origin, Authorization, X-Requested-With,Content-Type");
            requiredHeaders.Add("Access-Control-Allow-Credentials", "true");
            foreach (ChannelDispatcher cd in serviceHostBase.ChannelDispatchers)
            {
                foreach (EndpointDispatcher ed in cd.Endpoints)
                {
                    ed.DispatchRuntime.MessageInspectors.Add(new CORSSupport(requiredHeaders));
                }
            }
        }

        void IServiceBehavior.Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
        }

        #endregion
    }

using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.ServiceModel.Dispatcher;

    [CORSSupportBehavior]
    public class ScannerService : IScannerService
    {

using System;
using CommunityToolkit.Maui.Markup;
using Microsoft.Maui;
using Microsoft.Maui.Controls;
using Microsoft.Maui.Essentials;
using static CommunityToolkit.Maui.Markup.GridRowsColumns;

namespace HelloMauiMarkup;

class MainPage : ContentPge
{
    public MainPage()
    {
        BindingContext = new MainViewModel();

        Content = new Grid
        {
            RowSpacing = 25,
            ColumnSpacing = 0,

            Padding = Device.RuntimePlatform switch
            {
                Device.iOS => new Thickness(30, 60, 30, 30),
                _ => new Thickness(30)
            },

            RowDefinitions = Rows.Define(
                (Row.HelloWorld, 44),
                (Row.Welcome, Auto),
                (Row.Count, Auto),
                (Row.ClickMeButton, Auto),
                (Row.Image, Star)),

            ColumnDefinitions = Columns.Define(
            (Column.Text, Star),
                (Column.Number, Star)),

            Children =
            {
                new Label { Text = "Hello World" }
.Row(Row.HelloWorld).ColumnSpan(All<Column>())
.Font(size: 32)
.CenterHorizontal().TextCenter(),

                new Label { Text = "Welcome to .NET MAUI Markup Community Toolkit Sample" }
                .Row(Row.Welcome).ColumnSpan(All<Column>())
                    .Font(size: 18)
                .CenterHorizontal().TextCenter(),

new Label { Text = "Current Count: " }
                .Row(Row.Count).Column(Column.Text)
.Font(bold: true)
.End().TextEnd(),

new Label()
                .Row(Row.Count).Column(Column.Number)
                    .Font(bold: true)
                    .Start().TextStart()
                    .Bind<Label, int, string>(Label.TextProperty, nameof(MainViewModel.ClickCount), convert: count => count.ToString())

                new Button { Text = "Click Me" }
                .Row(Row.ClickMeButton)
                .Font(bold: true)
                .CenterHorizontal()
.BindCommand(nameof(ViewModel.ClickMeButtonCommand)),

                new Image { Source = "dotnet_bot.png", WidthRequest = 250, HeightRequest = 310 }
.Row(Row.Image).ColumnSpan(All<Column>())
.CenterHorizontal()
}
};
    }

    enum Row { HelloWorld, Welcome, Count, ClickMeButton, Image }
    enum Column { Text, Number }
}

@page "/"

<h1>Hello, world!</h1>

@page "/bindprop"

<li class="nav-item px-3">
    <NavLink class="nav-link" href="bindprop">
        <span class="oi oi-list-rich" aria-hidden="true"></span> Bind Properties
    </NavLink>
</li>

@page "/demoHotel"

<h3>Hotel Rooms</h3>
<div class="border p-2 mt-2" style="background-color:azure">
    <h2 class="text-info">Rooms List</h2>
    <div class="row container">
        @foreach (var room in Rooms)
        {
            <div class="bg-light border p-2 col-5 ml-2">
                <h4 class="text-secondary">Room - @room.Id</h4>

                @room.Name<br />
                @room.Price.ToString("c")<br />
                <input type="checkbox" @bind-value="room.IsActive" checked="@(room.IsActive?"checked":null)" /> &nbsp; Is Active<br />
                <span>This room is @(room.IsActive?"Active": "InActive")</span>

                @if (room.IsActive)
                {
                    @foreach (var roomProp in room.RoomProps)
                    {
                        <p>@roomProp.Name - @roomProp.Value</p>
                    }
                }

                <input type="button" class="btn btn-danger" value="Delete" />
                <input type="button" class="btn btn-success" value="Edit" />
            </div>
        }
    </div>
</div>

<li class="nav-item px-3">
    <NavLink class="nav-link" href="demoHotel">
      <span class="oi oi-list-rich" aria-hidden="true"></span> Demo Hotel
    </NavLink>
</li>

<input type="button" class="btn btn-danger" value="Delete" />
<input type="button" class="btn btn-success" value="Edit" />

<BlazorServerSample.Pages.LearnBlazor.LearnBlazorComponents.EditDeleteButton></BlazorServerSample.Pages.LearnBlazor.LearnBlazorComponents.EditDeleteButton>

@using BlazorServerSample.Pages.LearnBlazor.LearnBlazorComponents

<EditDeleteButton></EditDeleteButton>

@if (IsAdmin)
{
    <input type="button" class="btn btn-danger" value="Delete" />
    <input type="button" class="btn btn-success" value="Edit" />
}

@code
{
    [Parameter]
    public bool IsAdmin { get; set; }
}

<EditDeleteButton IsAdmin="true"></EditDeleteButton>

<div class="bg-light border p-2 col-5 offset-1">
    <h4 class="text-secondary">Room - @Room.Id</h4>

    @Room.Name<br />
    @Room.Price.ToString("c")<br />
    <input type="checkbox" @bind-value="Room.IsActive" checked="@(Room.IsActive?"checked":null)" /> &nbsp; Is Active<br />
    <span>This room is @(Room.IsActive?"Active": "InActive")</span>

    @if (Room.IsActive)
    {
        @foreach (var roomProp in Room.RoomProps)
        {
            <p>@roomProp.Name - @roomProp.Value</p>
        }
    }

    <EditDeleteButton IsAdmin="true"></EditDeleteButton>
</div>

@code
{
    [Parameter]
    public BlazorRoom Room { get; set; }
}

<div class="row container">
  @foreach (var room in Rooms)
  {
    <IndividualRoom Room="@room"></IndividualRoom>
  }
</div>

namespace BlazorServerSample.Models
{
    public class BlazorAmenity
    {
        public int Id { get; set; }

        public string Name { get; set; }

        public string Description { get; set; }
    }
}

@code{

    List<BlazorAmenity> AmenitiesList = new List<BlazorAmenity>();
    // ...

    protected override void OnInitialized()
    {
        base.OnInitialized();

        // ...

        AmenitiesList.Add(new BlazorAmenity
        {
            Id = 111,
            Name = "Gym",
            Description = "24x7 gym room is available."
        });
        AmenitiesList.Add(new BlazorAmenity
        {
            Id = 222,
            Name = "Swimming Pool",
            Description = "Pool room is open from 6am to 10pm."
        });
        AmenitiesList.Add(new BlazorAmenity
        {
            Id = 333,
            Name = "Free Brakfast",
            Description = "Enjoy free breakfast at out hotel."
        });
    }
}

<div class="bg-light border p-2 col-5 offset-1 mt-2">
    <h4 class="text-secondary">Amenity - @Amenity.Id</h4>

    @Amenity.Name<br />
    @Amenity.Description<br />
</div>

@code
{
    [Parameter]
    public BlazorAmenity Amenity { get; set; }
}

<div class="col-12 mt-4">
    <h4 class="text-info">Hotel Amenities</h4>
</div>
@foreach (var amenity in AmenitiesList)
{
    <IndividualAmenity Amenity="@amenity"></IndividualAmenity>
}

public ActionResult GetComments(JqGridRequest request, int? nodeid, int? parentid, int? n_level)

if (nodeid == null)
{
     productsQuery = productsQuery.Where(x => x.ParentId == null);
}

else
{
   // آی دی یک گره می‌تواند کلید خارجی یک جدول دیگر باشد
   productsQuery = productsQuery.Where(x => x.ParentId == nodeid.Value);
}

 var reflectTypeDescriptionProvider = typeof(PropertyDescriptor).Module.GetType("System.ComponentModel.ReflectTypeDescriptionProvider");
var propertyCacheField = reflectTypeDescriptionProvider.GetField("_propertyCache",
BindingFlags.Static | BindingFlags.NonPublic);

namespace WpfOneTime.Models
{
    public class User
    {
        public string Name { set; get; }
    }
}

using WpfOneTime.Models;
using System.Collections.Generic;

namespace WpfOneTime.ViewModels
{
    public class MainWindowViewModel
    {
        public IList<User> Users { set; get; }

        public MainWindowViewModel()
        {
            Users = new List<User>();
            for (int i = 0; i < 1000; i++)
            {
                Users.Add(new User { Name = "name " + i });
            }
        }
    }
}

<Window x:Class="WpfOneTime.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:ViewModels="clr-namespace:WpfOneTime.ViewModels"        
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <ViewModels:MainWindowViewModel x:Key="vmMainWindowViewModel" />
    </Window.Resources>
    <Grid DataContext="{Binding Source={StaticResource vmMainWindowViewModel}}">        
        <ListBox ItemsSource="{Binding Users}">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Name}" />
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </Grid>
</Window>

 <TextBlock Text="{Binding Name, Mode=OneTime}" />

 new ReflectPropertyDescriptorWindow().Show();

using System.Collections.Generic;

namespace TestRouting.Models
{
    public class Issue
    {
        public int IssueId { set; get; }
        public int ProjectId { set; get; }
        public string Title { set; get; }
        public string Body { set; get; }
    }

    public static class IssuesDataSource
    {
        public static IList<Issue> CreateDataSource()
        {
            var results = new List<Issue>();
            for (int i = 0; i < 100; i++)
            {
                results.Add(new Issue { IssueId = i, ProjectId = i, Body = "Test...", Title = "Title " + i });
            }
            return results;
        }
    }
}

using System.Linq;
using System.Web.Mvc;
using TestRouting.Models;

namespace TestRouting.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            var issuesList = IssuesDataSource.CreateDataSource();
            return View(issuesList); //show the list
        }

        public ActionResult Details(int issueId, int projectId)
        {
            var issue = IssuesDataSource.CreateDataSource()
                                        .Where(x => x.IssueId == issueId && x.ProjectId == projectId)
                                        .FirstOrDefault();
            return View(issue);
        }
    }
}

@model IEnumerable<TestRouting.Models.Issue>
@{
    ViewBag.Title = "Index";
}
<h2>
    Issues</h2>
<ul>
    @foreach (var item in Model)
    {
   
        <li>
            @Html.ActionLink(linkText: item.Title,
                     actionName: "Details",
                     controllerName: "Home",
                     routeValues: new { issueId = item.IssueId, projectId = item.ProjectId },
                     htmlAttributes: null)
        </li>
    }
</ul>

 http://localhost:1036/Home/Details?issueId=0&projectId=0

 http://localhost:1036/Home/Details/0/0

using System.Web.Mvc;
using System.Web.Routing;

namespace TestRouting
{
    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                name: "IssueDetails",
                url: "Details/{issueId}/{projectId}", //تطابق با یک چنین مسیرهایی
                defaults: new 
                          { 
                                controller = "Home", //کنترلری که این نوع مسیرها را پردازش خواهد کرد
                                action = "Details", // اکشن متدی که نهایتا پارامترها را دریافت می‌کند
                                issueId = UrlParameter.Optional, //این خواص نیاز است هم نام پارامترهای اکشن متد تعریف شوند
                                projectId = UrlParameter.Optional
                          }
            );

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );
        }
    }
}

 http://localhost:1036/Home/Details/0/0

  HasRequired(row => row.CreatedBy).WithMany(row => row.CategoriesCreated).HasForeignKey(row => row.CreatedById).WillCascadeOnDelete(false);
HasOptional(row => row.DeletedBy).WithMany(row => row.CategoriesDeleted).HasForeignKey(row => row.DeletedById).WillCascadeOnDelete(false);

return new PdfReport().DocumentPreferences(doc =>
            {
                // ... 
                doc.PrintingPreferences(new PrintingPreferences
                {
                    ShowPrintDialogAutomatically = true
                });
            })