using System.IO;
using System.Xml;
using System.Xml.Serialization;

namespace DNTViewer.Common.Toolkit
{
    public static class Serializer
    {
        public static string Serialize<T>(T type)
        {
            var serializer = new XmlSerializer(type.GetType());
            using (var stream = new MemoryStream())
            {
                serializer.Serialize(stream, type);
                stream.Seek(0, SeekOrigin.Begin);
                using (var reader = new StreamReader(stream))
                {
                    return reader.ReadToEnd();
                }
            }
        }
    }
}

        private string createXmlFile(string dir)
        {
            var xLinq = new XElement("ArrayOfPost",
                        _blogPosts
                            .AsNoTracking()
                            .Include(x => x.Comments)
                            .Include(x => x.User)
                            .Include(x => x.Tags)
                            .OrderBy(x => x.Id)
                            .ToList()
                            .Select(x => new XElement("Post", postXElement(x)))
                            );

            var xmlFile = Path.Combine(dir, "dot-net-tips-database.xml");
            xLinq.Save(xmlFile);
            return xmlFile;
        }

        private static XElement[] postXElement(BlogPost x)
        {
            return new XElement[]
            {
                new XElement("Id", x.Id),
                new XElement("Title", x.Title),
                new XElement("Body", x.Body),
                new XElement("CreatedOn", x.CreatedOn),
                tagElement(x),
                new XElement("User",
                                new XElement("Id", x.UserId.Value),
                                new XElement("FriendlyName", x.User.FriendlyName))
            }.Where(item => item != null).ToArray();
        }

        private static XElement tagElement(BlogPost x)
        {
            var tags = x.Tags.Any() ?
                            x.Tags.Select(y =>
                                        new XElement("Tag",
                                                new XElement("Id", y.Id),
                                                new XElement("Name", y.Name)))
                                  .ToArray() : null;
            if (tags == null)
                return null;

            return new XElement("Tags", tags);
        }

• یکی از محدودیت‌های استفاده از expression body داشتن چندین خط دستور برای بدنه متدهایمان است. در اینحالت باید از روش سابق (statement body) استفاده نمائید. 
• یکی دیگر از محدودیت‌ها عدم امکان استفاده از if, else, switch است. به عنوان مثال نمی‌توان کد زیر را با داشتن if و else به صورت expression body نوشت:

public override string ToString() =>
                    (MiddleName != null)
                    ? FirstName + " " + MiddleName + " " + LastName
                    : FirstName + " " + LastName;

• همچنین نمی‌توان از for, foreach, while, do در expression body استفاده کرد، به جای آن می‌توان از عبارت‌های LINQ برای بدنه تابع استفاده کرد. به عنوان مثال متد زیر:
  

public IEnumerable<int> SmallNumbers() => Enumerable.Range(0, 10).Select(n => n);

• همانطور که عنوان شد، استفاده از expression body در قسمت پراپرتی‌ها تنها محدود به پراپرتی‌های get-only (فقط خواندنی) میباشد.
  
• استفاده از این قابلیت برای متدهای سازنده
• استفاده در رخدادها
• استفاده در finalizers

    public class Person
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }

        public Person()
        {
            this.FirstName = "Sirwan";
            this.LastName = "Afifi";
        }
    }

public string FirstName { get; set; } = "Sirwan";
public string LastName { get; set; } = "Afifi";

Failed to load resource: the server responded with a status of 500 (Internal Server Error)

/**
* Time Left function
*
* Example
* $x = 1332140945 ;
* echo time_left($x);
* @param $ts int timestamp's post
* @return string time left like 3mahe ghabl
*/
function time_left($ts = null)
{
if(!$ts)
return '';


$time = time();
$t = $time-$ts;

if(intval($t) < 0)
return 'آینده';

if(floor($t/31536000) >= 1 )
$out = floor($t/31536000).' سال قبل';
elseif(floor($t/2592000) >= 1)
$out = floor($t/2592000).' ماه قبل';
elseif(floor($t/604800) >= 1)
$out = floor($t/604800).' هفته قبل';
elseif(floor($t/86400) >= 1)
$out = floor($t/86400).' روز قبل';
elseif(floor($t/3600) >=1)
$out = floor($t/3600).' ساعت پیش';
elseif(floor($t/60) >= 1)
$out = floor($t/60).' دقیقه پیش';
else
$out = $t.' ثانیه قبل';
return $out;
} 

var context = new Models.EntitiesConnection();
var query = context.Posts.Select(pst => new {
             id = pst.id, 
             Title = pst.Title, 
             GNames = pst.GroupsDetails.Select(grd => new { Name = grd.PostGroup.name }) 
             })
             .OrderByDescending(c => c.id)
             .ToList();

public bool myfunc(List<Post> query)
        {
            foreach (var item in query)
            {
            .....  string title =  item.Title;
            }
...return true;
        }
.
.
.

var context = new Models.EntitiesConnection();
var queryx = context.Posts.ToList();
.... myfunc(queryx );

        public static List<T> CreateGenericListFromAnonymous<T>(object obj, T example)
        {
            return (List<T>)obj;
        }
        public static IEnumerable<T> CreateEmptyAnonymousIEnumerable<T>(T example)
        {
            return new List<T>(); ;
        }

////

        public bool myfunc(object query)
        {
            var cquery = CreateGenericListFromAnonymous(query, 
                              new { 
                                       id = 0, 
                                       Title = string.Empty, 
                                       GNames = CreateEmptyAnonymousIEnumerable(new { Name = string.Empty }) 
                              });
            foreach (var item in cquery)
            {
                string title = item.Title;
                foreach (var gname in item.GNames)
                {
                    string gn = gname.Name;
                }
.
.
.
            }
            return false;
        }

.
.
.
var context = new Models.EntitiesConnection();
var query = context.Posts.Select(pst => new
                              { 
                                   id = pst.id, 
                                   Title = pst.Title,
                                   GNames = pst.GroupsDetails.Select(grd => new { Name = grd.PostGroup.name }) 
                             }).OrderByDescending(c => c.id);
            myfunc(query.ToList());

 PM> install-package AvalonEdit

<Window x:Class="SyntaxHighlighter.MainWindow"
   xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
   xmlns:avalonEdit="http://icsharpcode.net/sharpdevelop/avalonedit"
   Title="MainWindow" Height="401" Width="617">
  <Grid>
<avalonEdit:TextEditor  
    Name="txtCode"
    SyntaxHighlighting="C#"
  FontFamily="Consolas"
  FontSize="10pt"/>   
  </Grid>
</Window>

using System;
using System.Collections.Concurrent;
using System.Reflection;
using System.Windows;
using System.Xml;
using ICSharpCode.AvalonEdit;
using ICSharpCode.AvalonEdit.Highlighting;
using ICSharpCode.AvalonEdit.Highlighting.Xshd;

namespace AvalonEditWpfTest.Controls
{
    public class BindableAvalonTextEditor : TextEditor
    {
        public static readonly DependencyProperty BoundTextProperty =
            DependencyProperty.Register("BoundText",
                typeof(string),
                typeof(BindableAvalonTextEditor),
                new FrameworkPropertyMetadata(default(string), propertyChangedCallback));
 
        public static string GetBoundText(DependencyObject obj)
        {
            return (string)obj.GetValue(BoundTextProperty);
        }

        public static void SetBoundText(DependencyObject obj, string value)
        {
            obj.SetValue(BoundTextProperty, value);
        }

        protected override void OnTextChanged(EventArgs e)
        {
            SetCurrentValue(BoundTextProperty, Text);
            base.OnTextChanged(e);
        }

        private static void propertyChangedCallback(DependencyObject obj,
                                    DependencyPropertyChangedEventArgs args)
        {
            var target = (BindableAvalonTextEditor)obj;
            var value = args.NewValue;
            if (value == null)
                return;

            if (string.IsNullOrWhiteSpace(target.Text) ||
                !target.Text.Equals(args.NewValue.ToString()))
            {
                target.Text = args.NewValue.ToString();
            }
        }
    }
}

<Window x:Class="AvalonEditWpfTest.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:viewModels="clr-namespace:AvalonEditTests.ViewModels"
        xmlns:controls="clr-namespace:AvalonEditWpfTest.Controls"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <viewModels:MainWindowViewModel x:Key="MainWindowViewModel"/>
    </Window.Resources>
    <Grid DataContext="{Binding Source={StaticResource MainWindowViewModel}}">
        <controls:BindableAvalonTextEditor
                BoundText="{Binding SourceCode, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                        WordWrap="True"
                        ShowLineNumbers="True"
                        LineNumbersForeground="MediumSlateBlue"
                        FontFamily="Consolas"
                        VerticalScrollBarVisibility="Auto"
                        Margin="3"          
                        HorizontalScrollBarVisibility="Auto"
                        FontSize="10pt"/>
    </Grid>
</Window>

        private static IHighlightingDefinition getHighlightingDefinition(string resourceName)
        {
            if (string.IsNullOrWhiteSpace(resourceName))
                throw new NullReferenceException("Please specify SyntaxHighlightingResourceName.");

            using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName))
            {
                if (stream == null)
                    throw new NullReferenceException(string.Format("{0} resource is null.", resourceName));

                using (var reader = new XmlTextReader(stream))
                {
                    return HighlightingLoader.Load(reader, HighlightingManager.Instance);
                }
            }
        }

 txtCode.SyntaxHighlighting = getHighlightingDefinition(resourceName);

using System;
using System.Collections.Concurrent;
using System.Reflection;
using System.Windows;
using System.Xml;
using ICSharpCode.AvalonEdit;
using ICSharpCode.AvalonEdit.Highlighting;
using ICSharpCode.AvalonEdit.Highlighting.Xshd;

namespace AvalonEditWpfTest.Controls
{
    public class BindableAvalonTextEditor : TextEditor
    {
         public static readonly DependencyProperty SyntaxHighlightingResourceNameProperty =
           DependencyProperty.Register("SyntaxHighlightingResourceName",
               typeof(string),
               typeof(BindableAvalonTextEditor),
               new FrameworkPropertyMetadata(default(string), resourceNamePropertyChangedCallback));
 
        public static string GetSyntaxHighlightingResourceName(DependencyObject obj)
        {
            return (string)obj.GetValue(SyntaxHighlightingResourceNameProperty);
        }

        public static void SetSyntaxHighlightingResourceName(DependencyObject obj, string value)
        {
            obj.SetValue(SyntaxHighlightingResourceNameProperty, value);
        }

        private static void loadHighlighter(TextEditor @this, string resourceName)
        {
            if (@this.SyntaxHighlighting != null)
                return;

            @this.SyntaxHighlighting = getHighlightingDefinition(resourceName);
        }

        private static void resourceNamePropertyChangedCallback(DependencyObject obj,
                                            DependencyPropertyChangedEventArgs args)
        {
            var target = (BindableAvalonTextEditor)obj;
            var value = args.NewValue;
            if (value == null)
                return;

            loadHighlighter(target, value.ToString());
        }
    }
}

   <controls:BindableAvalonTextEditor
SyntaxHighlightingResourceName = "AvalonEditWpfTest.Controls.sql-ce.xshd"
/>

module MyModule1 {
    module  MyModule2 {
     }
}

module Utilities {
   export class Logger {
      log(message: string): void{
       if(typeofwindow.console !== 'undefined') {
           window.console.log(message);
        }
      }
   }    
}

window.onload = function() {
  varlogger = new Utilities.Logger();
  logger.log('Logger is loaded'); 
};

export class Logger{
constructor(private num: number) { 
}

pad(num: number, len: number= 2, char: string= '0')

function addManyNumbers(...numbers: number[]) {
  var sum = 0;
  for(var i = 0; i < numbers.length; i++) {
    sum += numbers[i];
 }
  returnsum;
}
var result = addManyNumbers(1,2,3,5,6,7,8,9);

module Utilities {
    Export class Logger {  
     log(message: string): void{
                 if(typeofwindow.console !== 'undefined') {   
                    window.console.log(this.getTimeStamp() + ' -'+ message);
                    window.console.log(this.getTimeStamp() + ' -'+ message); 
                }
        }
  private getTimeStamp(): string{
      var now = newDate();
      return now.getHours() + ':'+
      now.getMinutes() + ':'+
      now.getSeconds() + ':'+
      now.getMilliseconds();
  }
 }
}

classFormatter {
static pad(num: number, len: number, char: string): string{
      var output = num.toString();
         while(output.length < len) {
         output = char + output;
      }
   returnoutput;
   }
  }
}

Formatter.pad(now.getSeconds(), 2, '0') +

static pad(num: number, len?: number, char?: string);
static pad(num: string, len?: number, char?: string);
static pad(num: any, len: number= 2, char: string= '0') {
 var output = num.toString();
 while(output.length < len) {
 output = char + output;
 }
 returnoutput;
}

using System;
using System.Net;
using System.Threading;
using Fiddler;
using System.Net.Security;

namespace FiddlerTest
{
    class Program
    {
        static void beforeRequest(Session oSession)
        {
        }

        static void Main(string[] args)
        {
            try
            {
                startFiddlerApplication();

                Console.WriteLine("FiddlerCore started on port " + FiddlerApplication.oProxy.ListenPort);
                Console.WriteLine("Press any key to exit");
                Console.ReadKey();
            }
            finally
            {
                shutdownFiddlerApplication();
            }
        }

        static void onLogString(object sender, LogEventArgs e)
        {
            Console.WriteLine("** LogString: " + e.LogString);
        }

        static void onNotification(object sender, NotificationEventArgs e)
        {
            Console.WriteLine("** NotifyUser: " + e.NotifyString);
        }

        static void onValidateServerCertificate(object sender, ValidateServerCertificateEventArgs e)
        {
            if (SslPolicyErrors.None == e.CertificatePolicyErrors)
                return;

            Console.WriteLine("invalid certificate: {0}", e.ServerCertificate.Subject);

            e.ValidityState = CertificateValidity.ForceValid;
        }

        static void shutdownFiddlerApplication()
        {
            FiddlerApplication.OnNotification -= onNotification;
            FiddlerApplication.Log.OnLogString -= onLogString;
            FiddlerApplication.BeforeRequest -= beforeRequest;
            FiddlerApplication.OnValidateServerCertificate -= onValidateServerCertificate;

            FiddlerApplication.oProxy.Detach();
            FiddlerApplication.Shutdown();

            Thread.Sleep(500);
        }

        private static void startFiddlerApplication()
        {
            FiddlerApplication.OnNotification += onNotification;
            FiddlerApplication.Log.OnLogString += onLogString;
            FiddlerApplication.BeforeRequest += beforeRequest;
            FiddlerApplication.OnValidateServerCertificate += onValidateServerCertificate;

            FiddlerApplication.Startup(5656,
                FiddlerCoreStartupFlags.RegisterAsSystemProxy |
                FiddlerCoreStartupFlags.MonitorAllConnections |
                FiddlerCoreStartupFlags.CaptureFTP); // proxy server on 5656
        }
    }
}

static void beforeRequest(Session oSession)
{
  //send each request to the next proxy
  oSession["X-OverrideGateway"] = "socks=" + IPAddress.Loopback + ":" + 2002; //socks on 2002
}