"Missing method System.Web.Security.FormsAuthentication::get_IsEnabled() in assembly System.Web.dll

Compiler Error Message: CS1703: An assembly with the same identity `mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' 
has already been imported. Consider removing one of the references

 git clone git://github.com/mono/xsp.git
cd xsp
./autogen.sh --prefix=/opt
make
sudo make install

 System.IO.FileNotFoundException: Could not load file or assembly XSP, Version=3.0.0.0

 cd xsp/src/Mono.WebServer.XSP/bin/Debug
sudo gacutil -i Mono.WebServer.XSP.exe
sudo gacutil -i Mono.WebServer.dll

 cd myMvcAppPath
sudo mono Mono.WebServer.XSP.exe

 CS0234: The type or namespace name `Helpers' does not exist in the namespace `System.Web'.
Are you missing an assembly reference?

  <system.web> 
    <compilation debug="true" targetFramework="4.0">
      <assemblies>
        <add assembly="System.Web.Helpers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />        
        <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />        
      </assemblies>
    </compilation>

 $ gacutil -l Microsoft.Web.Infrastructure
The following assemblies are installed into the GAC:
Microsoft.Web.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Number of items = 1

• OpenPGP: یک برنامه نیست و یک قانون و استانداری برای تهیه‌ی آن است؛ که رعایت اصول آن الزامی است و برنامه‌ی بالا، یک پیاده سازی از این استاندارد است.
• PGP: یک برنامه، برای رمزگذاری اطلاعات است که مخفف Pretty Good Privacy است.
• و GnuPG یا GPG که در بالا به آن اشاره شد.

gpg --gen-key

Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)

What keysize do you want? (2048)

Key is valid for? (0)

دو هفته
2w
دو سال
2y

You need a user ID to identify your key; the software constructs the user ID
from the Real Name, Comment and Email Address in this form:
    "Heinrich Heine (Der Dichter) <heinrichh@duesseldorf.de>"

Real name: ali yeganeh.m
Email address: yeganehaym@gmail.com
Comment: androidbreadcrumb
You selected this USER-ID:
    "ali yeganeh.m (androidbreadcrumb) <yeganehaym@gmail.com>"

ali@alipc:~$ gpg --list-keys
/home/ali/.gnupg/pubring.gpg
----------------------------
pub   2048R/8708016A 2015-10-23 [expires: 2065-10-10]
uid                  ali yeganeh.m (androidbreadcrumb) <yeganehaym@gmail.com>
sub   2048R/533B7E96 2015-10-23 [expires: 2065-10-10]

gpg --output mykey.asc --export -a $GPGKEY

gpg --output mykey.asc --export -a 8708016A

ali@alipc:~$ cat mykey.asc
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1
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=6j7i
-----END PGP PUBLIC KEY BLOCK-----

gpg --output mykey.asc --export-secret-key -a 8708016A

gpg --send-keys --keyserver keyserver.ubuntu.com $GPGKEY

==>
gpg --send-keys --keyserver keyserver.ubuntu.com 8708016A

ali@alipc:~$ cat >ali.txt
hello ubuntu

ali@alipc:~$ gpg --output myali.gpg --encrypt --recipient yeganehaym@gmail.com ali.txt

gpg --output output.txt --decrypt myali.gpg

You need a passphrase to unlock the secret key for
user: "ali yeganeh.m (androidbreadcrumb) <yeganehaym@gmail.com>"
2048-bit RSA key, ID 533B7E96, created 2015-10-23 (main key ID 8708016A)

ali@alipc:~$ cat output.txt 
hello ubuntu

csc /t:module RUT.cs

File #1 (26000001)
­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­
Token: 0x26000001
Name : RUT.netmodule
HashValue Blob : e6 e6 df 62 2c a1 2c 59 97 65 0f 21 44 10 15 96 f2 7e db c2
Flags : [ContainsMetaData] (00000000)


ExportedType #1 (27000001)
­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­
Token: 0x27000001
Name: ARarelyUsedType
Implementation token: 0x26000001
TypeDef token: 0x02000002
Flags : [Public] [AutoLayout] [Class] [Sealed] [AnsiClass]
[BeforeFieldInit](00100101)

قابل توجه افراد کنجکاو: توکن‌های جداول متا، مقادیر 4 بایتی است که بایت پر ارزش آن اشاره می‌کند که برای یافتن آن باید به چه جدولی ارجاع کرد. مقادیر زیر این نکته را روشن می‌کند که هر کد ابتدایی به چه جدولی اشاره می‌کند:

برای دیدن لیست کاملی از این کدها فایل Corhdr.h را که به همراه فریم ورک دات نت نصب می‌شود، مطالعه فرمایید. سه بایت باقیمانده هم بر اساس جدولی که به آن ارجاع شده است مشخص می‌گردد؛ مثلا در مثال بالا کد 0x26000001  به اولین سطر جدول File اشاره می‌کند. برای اکثر جدول‌ها شماره گذاری سطرها از عدد 1 آغاز می‌شود نه صفر یا برای برای جداول TypeDef عموما از عدد 2 آغاز می‌شود. 

برای اجرای اسمبلی، کامپایلر نیاز دارد که همه‌ی فایل‌های اسمبلی، نصب شده و قابل دسترس باشند و در صورتیکه شما فایل RUT.netmodule را حذف کنید کامپایلر سی شارپ خطای زیر را صادر می‌کند:

fatal error CS0009: Metadata file 'C:\ MultiFileLibrary.dll' could not be opened—'Error importing module 'RUT.netmodule' of assembly 'C:\ MultiFileLibrary.dll'—The system cannot find the file specified'

<Window x:Class="FirstPrismSample.Shell"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:com="http://www.codeplex.com/CompositeWPF"
    Title="Prism Sample By Masoud Pakdel" Height="400" Width="600" WindowStartupLocation="CenterScreen">
    <DockPanel>
      <ContentControl com:RegionManager.RegionName="WorkspaceRegion" Width="400"/>
      <ContentControl com:RegionManager.RegionName="NavigatorRegion"  DockPanel.Dock="Left" Width="200" />     
    </DockPanel>
</Window>

using System.ComponentModel;

namespace FirstPrismSample.Common
{
    public abstract class ViewModelBase : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        protected void RaisePropertyChangedEvent( string propertyName )
        {
            if ( PropertyChanged != null )
            {
                PropertyChangedEventArgs e = new PropertyChangedEventArgs( propertyName );
                PropertyChanged( this, e );
            }
        }
    }
}

using Microsoft.Practices.Composite.Presentation.Events;

namespace FirstPrismSample.Common.Events
{
    public class ViewRequestedEvent : CompositePresentationEvent<string>
    {
    }
}

namespace FirstPrismSample .Common
{
    public interface IModuleServices
    {     
        void ActivateView(string viewName);
    }
}

using Microsoft.Practices.Composite.Regions;
using Microsoft.Practices.Unity;

namespace FirstPrismSample.Common
{
    public class ModuleServices : IModuleServices
    {     
        private readonly IUnityContainer m_Container;  
     
        public ModuleServices(IUnityContainer container)
        {
            m_Container = container;
        }      
   
        public void ActivateView(string viewName)
        {        
            var regionManager = m_Container.Resolve<IRegionManager>();

            // غیر فعال کردن ویو
            IRegion workspaceRegion = regionManager.Regions["WorkspaceRegion"];
            var views = workspaceRegion.Views;
            foreach (var view in views)
            {
                workspaceRegion.Deactivate(view);
            }

            //فعال کردن ویو انتخاب شده 
            var viewToActivate = regionManager.Regions["WorkspaceRegion"].GetView(viewName);
            regionManager.Regions["WorkspaceRegion"].Activate(viewToActivate);
        }
    }
}

using Microsoft.Practices.Composite.Events;
using Microsoft.Practices.Composite.Modularity;
using Microsoft.Practices.Composite.Regions;
using Microsoft.Practices.Unity;
using FirstPrismSample.Common;
using FirstPrismSample.Common.Events;
using Microsoft.Practices.Composite.Presentation.Events;

namespace FirstPrismSample.ModuleCategory
{
    [Module(ModuleName = "ModuleCategory")]
    public class CategoryModule : IModule
    {      
        private readonly IUnityContainer m_Container;
        private readonly string moduleName = "ModuleCategory";
            
        public CategoryModule(IUnityContainer container)
        {
            m_Container = container;
        }   
      
        ~CategoryModule()
        {
            var eventAggregator = m_Container.Resolve<IEventAggregator>();
            var viewRequestedEvent = eventAggregator.GetEvent<ViewRequestedEvent>();       
            viewRequestedEvent.Unsubscribe(ViewRequestedEventHandler);
        }
     
        public void Initialize()
        {           
            var regionManager = m_Container.Resolve<IRegionManager>();
            regionManager.Regions["WorkspaceRegion"].Add(new CategoryView(), moduleName);
         
            var eventAggregator = m_Container.Resolve<IEventAggregator>();
            var viewRequestedEvent = eventAggregator.GetEvent<ViewRequestedEvent>();
            viewRequestedEvent.Subscribe(this.ViewRequestedEventHandler, true);
        }
       
        public void ViewRequestedEventHandler(string moduleName)
        {
            if (this.moduleName != moduleName) return;
          
            var moduleServices = m_Container.Resolve<IModuleServices>();
            moduleServices.ActivateView(moduleName);
        }      
    }
}

regionManager.Regions["WorkspaceRegion"]

<UserControl x:Class="FirstPrismSample.ModuleBook.BookView"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Background="LightGray" FontFamily="Tahoma" FlowDirection="RightToLeft">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <TextBlock Text="لیست کتاب ها"/>
        <ListView Grid.Row="1" Margin="10" Name="lvBook">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="کد" Width="50"  />
                    <GridViewColumn Header="عنوان" Width="200" />
                    <GridViewColumn Header="نویسنده" Width="150" />
                </GridView>
            </ListView.View>
        </ListView>
    </Grid>
</UserControl>

using Microsoft.Practices.Composite.Events;
using Microsoft.Practices.Composite.Modularity;
using Microsoft.Practices.Composite.Presentation.Events;
using Microsoft.Practices.Composite.Regions;
using Microsoft.Practices.Unity;
using FirstPrismSample.Common;
using FirstPrismSample.Common.Events;

namespace FirstPrismSample.ModuleBook
{
    [Module(ModuleName = "moduleBook")]
    public class BookModule : IModule
    {      
        private readonly IUnityContainer m_Container;
        private readonly string moduleName = "ModuleBook";     
    
        public BookModule(IUnityContainer container)
        {
            m_Container = container;          
        }     
       
        ~BookModule()
        {           
            var eventAggregator = m_Container.Resolve<IEventAggregator>();
            var viewRequestedEvent = eventAggregator.GetEvent<ViewRequestedEvent>();
          
            viewRequestedEvent.Unsubscribe(ViewRequestedEventHandler);
        }     
     
        public void Initialize()
        {           
            var regionManager = m_Container.Resolve<IRegionManager>();
            var view = new BookView();
            regionManager.Regions["WorkspaceRegion"].Add(view, moduleName);
            regionManager.Regions["WorkspaceRegion"].Deactivate(view);
      
            var eventAggregator = m_Container.Resolve<IEventAggregator>();
            var viewRequestedEvent = eventAggregator.GetEvent<ViewRequestedEvent>();
            viewRequestedEvent.Subscribe(this.ViewRequestedEventHandler, true);
        }     
      
        public void ViewRequestedEventHandler(string moduleName)
        {           
            if (this.moduleName != moduleName) return;
         
            var moduleServices = m_Container.Resolve<IModuleServices>();
            moduleServices.ActivateView(m_WorkspaceBName);
        }
    }
}

<UserControl x:Class="FirstPrismSample.ModuleNavigator.NavigatorView"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" >
    <Grid>
        <StackPanel VerticalAlignment="Center">
            <TextBlock Text="انتخاب ماژول" Foreground="Green" HorizontalAlignment="Center"
                VerticalAlignment="Center" FontFamily="Tahoma" FontSize="24" FontWeight="Bold" />
        <Button Command="{Binding ShowModuleCategory}" Margin="5" Width="125">طبقه بندی کتاب ها</Button>
        <Button Command="{Binding ShowModuleBook}" Margin="5" Width="125">لیست کتاب ها</Button>
        </StackPanel>
        </Grid>
</UserControl>

public interface INavigatorViewModel
    {    
        ICommand ShowModuleCategory { get; set; }       
        ICommand ShowModuleBook { get; set; }

        string ActiveWorkspace { get; set; }       

        IUnityContainer Container { get; set; }

        event PropertyChangedEventHandler PropertyChanged;
    }

public class NavigatorViewModel : ViewModelBase, INavigatorViewModel
    {        
        public NavigatorViewModel(IUnityContainer container)
        {
            this.Initialize(container);
        }   
       
        public ICommand ShowModuleCategory { get; set; }
      
        public ICommand ShowModuleBook { get; set; }      
              
        public string ActiveWorkspace { get; set; }       

        public IUnityContainer Container { get; set; }        
     
        private void Initialize(IUnityContainer container)
        {
            this.Container = container;
            this.ShowModuleCategory = new ShowModuleCategoryCommand(this);
            this.ShowModuleBook = new ShowModuleBookCommand(this);
            this.ActiveWorkspace = "ModuleCategory";
        }        
    }

public class ShowModuleCategoryCommand : ICommand
    {      
        private readonly NavigatorViewModel viewModel;
        private const string workspaceName = "ModuleCategory";         

        public ShowModuleCategoryCommand(NavigatorViewModel viewModel)
        {
            this.viewModel = viewModel;
        }          

        public bool CanExecute(object parameter)
        {
            return viewModel.ActiveWorkspace != workspaceName;
        }

        public event EventHandler CanExecuteChanged
        {
            add { CommandManager.RequerySuggested += value; }
            remove { CommandManager.RequerySuggested -= value; }
        }
     
        public void Execute(object parameter)
        {
            CommandServices.ShowWorkspace(workspaceName, viewModel);
        }      
    }

public class ShowModuleBookCommand : ICommand
    {
        private readonly NavigatorViewModel viewModel;
        private readonly string workspaceName = "ModuleBook";

        public ShowModuleBookCommand( NavigatorViewModel viewModel )
        {
            this.viewModel = viewModel;
        }

        public bool CanExecute( object parameter )
        {
            return viewModel.ActiveWorkspace != workspaceName;
        }

        public event EventHandler CanExecuteChanged
        {
            add { CommandManager.RequerySuggested += value; }
            remove { CommandManager.RequerySuggested -= value; }
        }

        public void Execute( object parameter )
        {
            CommandServices.ShowWorkspace( workspaceName , viewModel );
        }
    }

public static void ShowWorkspace(string workspaceName, INavigatorViewModel viewModel)
  {           
            var eventAggregator = viewModel.Container.Resolve<IEventAggregator>();
            var viewRequestedEvent = eventAggregator.GetEvent<ViewRequestedEvent>();
            viewRequestedEvent.Publish(workspaceName);
        
            viewModel.ActiveWorkspace = workspaceName;
 }

xcopy "$(TargetDir)FirstPrismSample.ModuleBook.dll" "$(SolutionDir)FirstPrismSample\bin\$(ConfigurationName)\Modules\" /Y

    public class Bootstrapper : UnityBootstrapper
    {     
        protected override void ConfigureContainer()
        {
            base.ConfigureContainer();
            Container.RegisterType<IModuleServices, ModuleServices>();
        }
   
        protected override DependencyObject CreateShell()
        {
            var shell = new Shell();
            shell.Show();
            return shell;
        }
   
        protected override IModuleCatalog GetModuleCatalog()
        {           
            var catalog = new DirectoryModuleCatalog();
            catalog.ModulePath = @".\Modules";
            return catalog;
        }
    }

"$(SolutionDir)FirstPrismSample\bin\$(ConfigurationName)\Modules\" /Y

public partial class App : Application
    {
        protected override void OnStartup(StartupEventArgs e)
        {
            base.OnStartup(e);
            var bootstrapper = new Bootstrapper();
            bootstrapper.Run();
        }
    }

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 );
}

 PM> Install-Package PostSharp

using System;

namespace AOP03
{
    public class MyType
    {
        public void DoSomething(string data, int i)
        {
            Console.WriteLine("DoSomething({0}, {1});", data, i);
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            new MyType().DoSomething("Test", 1);
        }
    }
}

using System;
using PostSharp.Aspects;

namespace AOP03
{
    [Serializable]
    public class LoggingAspect : OnMethodBoundaryAspect
    {
        public override void OnEntry(MethodExecutionArgs args)
        {
            Console.WriteLine("On Entry");
        }

        public override void OnExit(MethodExecutionArgs args)
        {
            Console.WriteLine("On Exit");
        }

        public override void OnSuccess(MethodExecutionArgs args)
        {
            Console.WriteLine("On Success");
        }

        public override void OnException(MethodExecutionArgs args)
        {
            Console.WriteLine("On Exception");
        }
    }
}

    public class MyType
    {
        [LoggingAspect]
        public void DoSomething(string data, int i)
        {
            Console.WriteLine("DoSomething({0}, {1});", data, i);
        }
    }

 On Entry
DoSomething(Test, 1);
On Success
On Exit

public void DoSomething(string data, int i)
{
    <>z__Aspects.a0.OnEntry(null);
    try
    {
        Console.WriteLine("DoSomething({0}, {1});", data, i);
        <>z__Aspects.a0.OnSuccess(null);
    }
    catch (Exception)
    {
        <>z__Aspects.a0.OnException(null);
        throw;
    }
    finally
    {
        <>z__Aspects.a0.OnExit(null);
    }
}

 [Serializable]
[MulticastAttributeUsage(MulticastTargets.Method, TargetMemberAttributes = MulticastAttributes.Instance)]
public class LoggingAspect : OnMethodBoundaryAspect

 [assembly: LoggingAspect(AttributeTargetTypes = "AOP03.*")]

  var enumerable = AppDomain.CurrentDomain.GetAssemblies()
        .SelectMany(assembly => assembly.GetTypes())
        .Select(type => type.Namespace)
        .Distinct()
        .Where(name => name != null &&
                       name == "DomainClasses.Mappings");