• DataContext: این شیء اتصالش را به منبع داده‌ها برقرار کرده و هر موقع داده‌ای را نیاز داریم، از طریق این شیء تامین می‌شود.
• DataBinding: یک واسطه بین DataContext و هر آن چیزی است که قرار است از داده‌ها تغذیه کند. در تعریفی رسمی‌تر می‌گوییم: روشی ساده و قدرتمند بوده و واسطی است بین مدل تجاری و رابط کاربری. هر زمانی که داده‌ای تغییر کند، ما را آگاه می‌سازد که می‌تواند یک ارتباط یک طرفه یا دو طرفه باشد.
  
• DataTemplate: نحوه‌ی فرمت بندی و نمایش داده‌ها را تعیین می‌کند.

   public enum FieldOfWork
    {
        Actor=0,
        Director=1,
        Producer=2
    }
    public class Person
    {
        public string Name { get; set; }

        public bool Gender { get; set; }

        public string ImageName { get; set; }

        public string Country { get; set; }

        public DateTime Date { get; set; }

        public IList<FieldOfWork> FieldOfWork { get; set; }
        public static Person GetPerson()
        {
            return new Person()
            {
                Name = "Leo",
                Gender = true,
                ImageName ="man.jpg",
                Country = "Italy",
                Date = DateTime.Now
            };
        }
    }

 DataContext = Person.GetPerson();

public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            DataContext = Person.GetPerson();
        }  
    }

Text="{Binding Name}"

Source="{Binding ImageName}"

{
  "host": "http://localhost:8008"
}

import { Observable } from 'rxjs/Observable';
import { Inject, Injectable } from '@angular/core';
import { Http } from '@angular/http';
import 'rxjs/add/operator/map';

@Injectable()
export class AppConfigService {
    constructor(private http: Http) {   }
  private config: Object = null;
    get apiRoot() {
      return this.getProperty('host'); // <--- THIS GETS CALLED FIRST
    }
    load(): Promise<any> {
      console.log('get user called');
      const promise = this.http.get('assets/config.json').map((res) => res.json()).toPromise();
      promise.then(config => {
        this.config = config;     // <--- THIS RESOLVES AFTER
        console.log(this.config);
      });
    return promise;
  }
    private getProperty(property: string): any {
      //noinspection TsLint
      if (!this.config) {
        throw new Error('Attempted to access configuration property before configuration data was loaded, please implemented.');
      }

      if (!this.config[property]) {
        throw new Error(`Required property ${property} was not defined within the configuration object. Please double check the
        assets/config.json file`);
      }

      return this.config[property];
    }

}

export function init(config: AppConfigService) {
  return () => {
    return  config.load(); 
  };
}

  Providers:[
…,
AppConfigService,
{
      provide: APP_INITIALIZER,
      useFactory: init,
      multi: true,
      deps: [AppConfigService]
   }
…,

]

@Injectable()
export class DashboardService {
  private tagUrl = '';
  constructor(private http: Http,private AppConfig:AppConfigService) {
      this.tagtUrl = this.AppConfig.apiRoot+"/myApiUrl";
….
}

    {
      provide: APP_INITIALIZER,
      useFactory: init,
      multi: true,
      deps: [AppConfigService]
    },
  {
    provide: APP_INITIALIZER,
    useFactory: initIdentity,
    multi: true,
    deps: [IdentityService]
  },
  AppConfigService,
  IdentityService,

>db.COLLECTION_NAME.remove(DELLETION_CRITTERIA)

{ "_id" : ObjectId(5983548781331adf45ec5), "title":"MongoDB Overview"}
{ "_id" : ObjectId(5983548781331adf45ec6), "title":"NoSQL Overview"}
{ "_id" : ObjectId(5983548781331adf45ec7), "title":"Tutorials Point Overview"}

>db.mycol.remove({'title':'MongoDB Overview'})
>db.mycol.find()
{ "_id" : ObjectId(5983548781331adf45ec6), "title":"NoSQL Overview"}
{ "_id" : ObjectId(5983548781331adf45ec7), "title":"Tutorials Point Overview"}
>

>db.COLLECTION_NAME.remove(DELETION_CRITERIA,1)

>db.mycol.remove()
>db.mycol.find()
>

>db.COLLECTION_NAME.find({},{KEY:1})

{ "_id" : ObjectId(5983548781331adf45ec5), "title":"MongoDB Overview"}
{ "_id" : ObjectId(5983548781331adf45ec6), "title":"NoSQL Overview"}
{ "_id" : ObjectId(5983548781331adf45ec7), "title":"Tutorials Point Overview"}

>db.mycol.find({},{"title":1,_id:0})
{"title":"MongoDB Overview"}
{"title":"NoSQL Overview"}
{"title":"Tutorials Point Overview"}
>

using System;
using System.Drawing;
using System.Windows.Forms;
using com.mxgraph;
using System.Drawing.Imaging;

       void Test1()
       {
           // Creates graph with model
           mxGraph graph = new mxGraph();
           Object parent = graph.GetDefaultParent();

           // Adds cells into the graph
           graph.Model.BeginUpdate();
           try
           {
               Object v1 = graph.InsertVertex(parent, null, "سلام", 20, 20, 80, 30, "strokeColor=#FFCF8A;fillColor=#FFCF8A;gradientColor=white;fontBold=true;fontFamily=tahoma;rounded=true;shadow=true;shape=ellipse");
               Object v2 = graph.InsertVertex(parent, null, "!دنیای ظالم", 200, 150, 80, 30, "rounded=true;shadow=true;fontFamily=tahoma");
               Object e1 = graph.InsertEdge(parent, null, "e1", v1, v2, "fontFamily=tahoma");
           }
           finally
           {
               graph.Model.EndUpdate();
           }

           mxCellRenderer.CreateImage(graph, null, 1,
                                      Color.White, true, null).Save("test.png", ImageFormat.Png);
       }

using System;
using System.Web;
using com.mxgraph;
using System.Drawing;
using System.Web.Services;
using System.IO;
using System.Drawing.Imaging;

namespace test
{
   [WebService(Namespace = "http://tempuri.org/")]
   [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
   public class ImageHandler : IHttpHandler
   {
       public void ProcessRequest(HttpContext context)
       {
           // Creates graph with model
           mxGraph graph = new mxGraph();
           Object parent = graph.GetDefaultParent();

           // Adds cells into the graph
           graph.Model.BeginUpdate();
           try
           {
               Object v1 = graph.InsertVertex(parent, null, "سلام", 20, 20, 80, 30, "strokeColor=#FFCF8A;fillColor=#FFCF8A;gradientColor=white;fontBold=true;fontFamily=tahoma;rounded=true;shadow=true;shape=ellipse");
               Object v2 = graph.InsertVertex(parent, null, "!دنیای ظالم", 200, 150, 80, 30, "rounded=true;shadow=true;fontFamily=tahoma");
               Object e1 = graph.InsertEdge(parent, null, "e1", v1, v2, "fontFamily=tahoma");
           }
           finally
           {
               graph.Model.EndUpdate();
           }

           Image image = mxCellRenderer.CreateImage(graph, null, 1, Color.White, true, null);

           // Render BitMap Stream Back To Client
           MemoryStream memStream = new MemoryStream();
           image.Save(memStream, ImageFormat.Png);

           memStream.WriteTo(context.Response.OutputStream);
       }

       public bool IsReusable
       {
           get
           {
               return false;
           }
       }
   }

}

<img src="ImageHandler.ashx" />

public class Account
{
       public virtual int Id { get; set; }

       [NotNullNotEmpty]
       [Length(Min = 3, Max = 120, Message = "طول نام باید بین 3 و 120 کاراکتر باشد")]
       public virtual string Name { get; set; } 
}

public class Category
{
       public virtual int Id { get; set; }

       [NotNullNotEmpty]
       [Length(Min = 3, Max = 130, Message = "طول نام باید بین 3 و 130 کاراکتر باشد")]
       public virtual string Name { get; set; } 
}

public class Payee
{
       public virtual int Id { get; set; }

       [NotNullNotEmpty]
       [Length(Min = 3, Max = 120, Message = "طول نام باید بین 3 و 120 کاراکتر باشد")]
       public virtual string Name { get; set; }
}

public class Bill
{
       public virtual int Id { get; set; }

       [NotNull]
       public virtual Account Account { get; set; }

       [NotNull]
       public virtual Category Category { get; set; }

       [NotNull]
       public virtual Payee Payee { get; set; }

       [NotNull]
       public virtual decimal Amount { set; get; }

       [NotNull]
       public virtual DateTime BillDate { set; get; }

       [NotNullNotEmpty]
       [Length(Min = 1, Max = 500, Message = "طول توضیحات باید بین 1 و 500 کاراکتر باشد")]
       public virtual string Description { get; set; } 
}

    create table Accounts (
       AccountId INT IDENTITY NOT NULL,
      Name NVARCHAR(120) not null,
      primary key (AccountId)
   )

   create table Bills (
       BillId INT IDENTITY NOT NULL,
      Amount DECIMAL(19,5) not null,
      BillDate DATETIME not null,
      Description NVARCHAR(500) not null,
      AccountId INT not null,
      CategoryId INT not null,
      PayeeId INT not null,
      primary key (BillId)
   )

   create table Categories (
       CategoryId INT IDENTITY NOT NULL,
      Name NVARCHAR(130) not null,
      primary key (CategoryId)
   )

   create table Payees (
       PayeeId INT IDENTITY NOT NULL,
      Name NVARCHAR(120) not null,
      primary key (PayeeId)
   )

   alter table Bills
       add constraint fk_Account_Bill
       foreign key (AccountId)
       references Accounts

   alter table Bills
       add constraint fk_Category_Bill
       foreign key (CategoryId)
       references Categories

   alter table Bills
       add constraint fk_Payee_Bill
       foreign key (PayeeId)
       references Payees

var newBill = new Bill
                   {
                       Account = accountRepository.GetByKey(1),
                       Amount = 1,
                       BillDate = DateTime.Now,
                       Category = categoryRepository.GetByKey(1),
                       Description = "testestest...",
                       Payee = payeeRepository.GetByKey(1)
                   };

SELECT account0_.AccountId as AccountId0_0_, account0_.Name as Name0_0_
FROM Accounts account0_ WHERE account0_.AccountId=@p0;@p0 = 1 [Type: Int32 (0)]

SELECT category0_.CategoryId as CategoryId2_0_, category0_.Name as Name2_0_
FROM Categories category0_ WHERE category0_.CategoryId=@p0;@p0 = 1 [Type: Int32 (0)]

SELECT payee0_.PayeeId as PayeeId3_0_, payee0_.Name as Name3_0_
FROM Payees payee0_ WHERE payee0_.PayeeId=@p0;@p0 = 1 [Type: Int32 (0)]

INSERT INTO Bills (Amount, BillDate, Description, AccountId, CategoryId, PayeeId)
VALUES (@p0, @p1, @p2, @p3, @p4, @p5);
select SCOPE_IDENTITY();
@p0 = 1 [Type: Decimal (0)],
@p1 = 2010/12/27 11:48:33 ق.ظ [Type: DateTime (0)],
@p2 = 'testestest...' [Type: String (500)],
@p3 = 1 [Type: Int32 (0)],
@p4 = 1 [Type: Int32 (0)],
@p5 = 1 [Type: Int32 (0)]

INSERT INTO Bills (Amount, BillDate, Description, AccountId, CategoryId, PayeeId)
VALUES (@p0, @p1, @p2, @p3, @p4, @p5);
select SCOPE_IDENTITY();
@p0 = 1 [Type: Decimal (0)],
@p1 = 2010/12/27 11:58:22 ق.ظ [Type: DateTime (0)],
@p2 = 'testestest...' [Type: String (500)],
@p3 = 1 [Type: Int32 (0)],
@p4 = 1 [Type: Int32 (0)],
@p5 = 1 [Type: Int32 (0)]

public partial class Bill : EntityObject
{
       public global::System.Int32 BillId {set;get;}
       public global::System.Decimal Amount {set;get;}
       public global::System.DateTime BillDate {set;get;}
       public global::System.String Description {set;get;}
       public global::System.Int32 AccountId {set;get;}
       public global::System.Int32 CategoryId {set;get;}
       public global::System.Int32 PayeeId {set;get;}
       public Account Account {set;get;}
       public Category Category {set;get;}
}

var query = _context.Products.Select(x => new { x.Status.ToString(), ... });

"Status": { type: "string" },

field: "Status",
    values: [
    { text: "در حال بررسی", value: "Checking" },
    { text: "تایید شده", value: "Accepted" },
    { text: "رد شده", value: "Rejected" },
],
title: 'وضعیت'

var userId= User.Identity.GetUserId();
var user = _context.Users.Find(userId);

var user = int.Parse(User.Identity.GetUserId());

public class CommonASPNETRegistry : StructureMap.Configuration.DSL.Registry
{
        public CommonASPNETRegistry()
        {
            For<IIdentity>().Use(() => HttpContext.Current.User.Identity);
            // Other dependencies
        }
}

public static class SmObjectFactory
{
        private static readonly Lazy<Container> _containerBuilder =
            new Lazy<Container>(defaultContainer, LazyThreadSafetyMode.ExecutionAndPublication);

        public static IContainer Container
        {
            get { return _containerBuilder.Value; }
        }

        private static Container defaultContainer()
        {
            return new Container(ioc =>
            {
                // Other settings
                ioc.AddRegistry(new CommonASPNETRegistry());
                
            });
        }
}

var user = int.Parse(User.Identity.GetUserId());

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using Microsoft.Win32;
using System.Management;

namespace ConsoleApplication1
{

    class Program
    {
        private static string GetSystemCode_int1(byte[] byte_0)
        {
            if (byte_0 != null)
            {
                return Convert.ToBase64String((new MD5CryptoServiceProvider()).ComputeHash(byte_0));
            }
            else
            {
                return string.Empty;
            }
        }

        private static string GetSystemCode_int0(string string_2)
        {
            if (!string.IsNullOrEmpty(string_2))
            {
                return GetSystemCode_int1(Encoding.UTF8.GetBytes(string_2));
            }
            else
            {
                return string.Empty;
            }
        }

        public static string GetSystemCode()
        {
            string key = null;
            if (key == null)
            {
                string empty = string.Empty;
                try
                {
                    ManagementClass managementClass = new ManagementClass("win32_processor");
                    ManagementObjectCollection instances = managementClass.GetInstances();
                    foreach (ManagementBaseObject instance in instances)
                    {
                        try
                        {
                            empty = string.Concat(empty, instance.Properties["processorID"].Value.ToString());
                            break;
                        }
                        catch
                        {
                        }
                    }
                }
                catch
                {
                    try
                    {
                        ManagementObjectSearcher managementObjectSearcher = new ManagementObjectSearcher("Select * From Win32_BaseBoard");
                        foreach (ManagementBaseObject managementBaseObject in managementObjectSearcher.Get())
                        {
                            empty = string.Concat(empty, managementBaseObject["SerialNumber"].ToString().Trim());
                        }
                    }
                    catch
                    {
                    }
                }
                try
                {
                    ManagementObject managementObject = new ManagementObject("win32_logicaldisk.deviceid=\"C:\"");
                    managementObject.Get();
                    empty = string.Concat(empty, managementObject["VolumeSerialNumber"].ToString());
                }
                catch
                {
                }
                if (string.IsNullOrWhiteSpace(empty))
                {
                    empty = Environment.MachineName;
                }
                key = GetSystemCode_int0(empty);
            }
            return key;
        }

        static void Main(string[] args)
        {
            Console.WriteLine(GetSystemCode());
            Console.ReadKey();
        }
    }
}