namespace DNT.IDP
{
    public class Startup
    {
        public const string TwoFactorAuthenticationScheme = "idsrv.2FA";

        public void ConfigureServices(IServiceCollection services)
        {
            // ...

            services.AddAuthentication()
                .AddCookie(authenticationScheme: TwoFactorAuthenticationScheme)
                .AddGoogle(authenticationScheme: "Google", configureOptions: options =>
                {
                    options.SignInScheme = IdentityServerConstants.ExternalCookieAuthenticationScheme;
                    options.ClientId = Configuration["Authentication:Google:ClientId"];
                    options.ClientSecret = Configuration["Authentication:Google:ClientSecret"];
                });
        }

namespace DNT.IDP.Controllers.Account
{
    [SecurityHeaders]
    [AllowAnonymous]
    public class AccountController : Controller
    {
        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Login(LoginInputModel model, string button)
        {
    // ... 

            if (ModelState.IsValid)
            {
                if (await _usersService.AreUserCredentialsValidAsync(model.Username, model.Password))
                {
                    var user = await _usersService.GetUserByUsernameAsync(model.Username);
                    
                    var id = new ClaimsIdentity();
                    id.AddClaim(new Claim(JwtClaimTypes.Subject, user.SubjectId));
                    await HttpContext.SignInAsync(scheme: Startup.TwoFactorAuthenticationScheme, principal: new ClaimsPrincipal(id));

                    await _twoFactorAuthenticationService.SendTemporaryCodeAsync(user.SubjectId);

                    var redirectToAdditionalFactorUrl =
                        Url.Action("AdditionalAuthenticationFactor",
                            new
                            {
                                returnUrl = model.ReturnUrl,
                                rememberLogin = model.RememberLogin
                            });                   

                    // request for a local page
                    if (Url.IsLocalUrl(model.ReturnUrl))
                    {
                        return Redirect(redirectToAdditionalFactorUrl);
                    }

                    if (string.IsNullOrEmpty(model.ReturnUrl))
                    {
                        return Redirect("~/");
                    }

                    // user might have clicked on a malicious link - should be logged
                    throw new Exception("invalid return URL");
                }

                await _events.RaiseAsync(new UserLoginFailureEvent(model.Username, "invalid credentials"));
                ModelState.AddModelError("", AccountOptions.InvalidCredentialsErrorMessage);
            }

            // something went wrong, show form with error
            var vm = await BuildLoginViewModelAsync(model);
            return View(vm);
        }

 await HttpContext.SignInAsync(scheme: Startup.TwoFactorAuthenticationScheme, principal: new ClaimsPrincipal(id));

    public interface ITwoFactorAuthenticationService
    {
        Task SendTemporaryCodeAsync(string subjectId);
        Task<bool> IsValidTemporaryCodeAsync(string subjectId, string code);
    }

using System.ComponentModel.DataAnnotations;

namespace DNT.IDP.Controllers.Account
{
    public class AdditionalAuthenticationFactorViewModel
    {
        [Required]
        public string Code { get; set; }

        public string ReturnUrl { get; set; }

        public bool RememberLogin { get; set; }
    }
}

namespace DNT.IDP.Controllers.Account
{
    public class AccountController : Controller
    {
        [HttpGet]
        public IActionResult AdditionalAuthenticationFactor(string returnUrl, bool rememberLogin)
        {
            // create VM
            var vm = new AdditionalAuthenticationFactorViewModel
            {
                RememberLogin = rememberLogin,
                ReturnUrl = returnUrl
            };

            return View(vm);
        }

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> AdditionalAuthenticationFactor(
            AdditionalAuthenticationFactorViewModel model)
        {
            if (!ModelState.IsValid)
            {
                return View(model);
            }

            // read identity from the temporary cookie
            var info = await HttpContext.AuthenticateAsync(Startup.TwoFactorAuthenticationScheme);
            var tempUser = info?.Principal;
            if (tempUser == null)
            {
                throw new Exception("2FA error");
            }

            // ... check code for user
            if (!await _twoFactorAuthenticationService.IsValidTemporaryCodeAsync(tempUser.GetSubjectId(), model.Code))
            {
                ModelState.AddModelError("code", "2FA code is invalid.");
                return View(model);
            }

            // login the user
            AuthenticationProperties props = null;
            if (AccountOptions.AllowRememberLogin && model.RememberLogin)
            {
                props = new AuthenticationProperties
                {
                    IsPersistent = true,
                    ExpiresUtc = DateTimeOffset.UtcNow.Add(AccountOptions.RememberMeLoginDuration)
                };
            }

            // issue authentication cookie for user
            var user = await _usersService.GetUserBySubjectIdAsync(tempUser.GetSubjectId());
            await _events.RaiseAsync(new UserLoginSuccessEvent(user.Username, user.SubjectId, user.Username));
            await HttpContext.SignInAsync(user.SubjectId, user.Username, props);

            // delete temporary cookie used for 2FA
            await HttpContext.SignOutAsync(Startup.TwoFactorAuthenticationScheme);

            if (_interaction.IsValidReturnUrl(model.ReturnUrl) || Url.IsLocalUrl(model.ReturnUrl))
            {
                return Redirect(model.ReturnUrl);
            }

            return Redirect("~/");
        }

@model AdditionalAuthenticationFactorViewModel

<div>
    <div class="page-header">
        <h1>2-Factor Authentication</h1>
    </div>

    @Html.Partial("_ValidationSummary")

    <div class="row">
        <div class="panel panel-default">
            <div class="panel-heading">
                <h3 class="panel-title">Input your 2FA code</h3>
            </div>
            <div class="panel-body">
                <form asp-route="Login">
                    <input type="hidden" asp-for="ReturnUrl" />
                    <input type="hidden" asp-for="RememberLogin" />

                    <fieldset>
                        <div class="form-group">
                            <label asp-for="Code"></label>
                            <input class="form-control" placeholder="Code" asp-for="Code" autofocus>
                        </div>

                        <div class="form-group">
                            <button class="btn btn-primary">Submit code</button>
                        </div>
                    </fieldset>
                </form>

            </div>
        </div>
    </div>
</div>

body {
    margin: 0;"Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #333333;
    background-color: #ffffff;
}

        <div class="row-fluid">
            <div class="span12">
                <p class="lead">
                    تیتر</p>
                <p>
                    متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن
                    متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن
                    متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن
                    متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن متن
                </p>
                <small>اندازه کوچک</small> <strong>متن ضخیم</strong> <em>متن ایتالیک</em>
            </div>
        </div>

    <div class="container-fluid">
        <div class="row-fluid">
            <div class="span12">
                <table 
class="table table-striped table-hover table-bordered table-condensed">
                    <caption>
                        عنوانی خاص در اینجا</caption>
                    <thead>
                        <tr>
                            <th>
                                ستون یک
                            </th>
                            <th>
                                ستون دو
                            </th>
                            <th>
                                ستون سه
                            </th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr class="error">
                            <td>
                                1 متن یک
                            </td>
                            <td>
                                1 متن دو
                            </td>
                            <td>
                                1 متن سه
                            </td>
                        </tr>
                        <tr>
                            <td>
                                2 متن یک
                            </td>
                            <td>
                                2 متن دو
                            </td>
                            <td>
                                2 متن سه
                            </td>
                        </tr>
                        <tr>
                            <td>
                                3 متن یک
                            </td>
                            <td>
                                3 متن دو
                            </td>
                            <td>
                                3 متن سه
                            </td>
                        </tr>
                    </tbody>
                </table>
            </div>
        </div>
    </div>

<label class="checkbox">
       <input type="checkbox" name="isMale" />
 مذکر</label>

    <div class="container-fluid">
        <div class="row-fluid">
            <div class="span12">
                <table
 class="table table-striped table-hover table-bordered table-condensed">
                    <thead>
                        <tr>
                            <th>
                                دکمه
                            </th>
                            <th>
                                لینک
                            </th>
                            <th>
                                کلاس بکار گرفته شده
                            </th>
                        </tr>
                    </thead>
                    <tbody>
                        <tr>
                            <td>
                                <button class="btn">
                                    default</button>
                            </td>
                            <td>
                                <a href="#" class="btn">default</a>
                            </td>
                            <td>
                                <code>btn</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-primary">
                                    primary</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-primary">primary</a>
                            </td>
                            <td>
                                <code>btn btn-primary</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-info">
                                    info</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-info">info</a>
                            </td>
                            <td>
                                <code>btn btn-info</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-success">
                                    success</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-success">success</a>
                            </td>
                            <td>
                                <code>btn btn-success</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-warning">
                                    warning</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-warning">warning</a>
                            </td>
                            <td>
                                <code>btn btn-warning</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-danger">
                                    danger</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-danger">danger</a>
                            </td>
                            <td>
                                <code>btn btn-danger</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-inverse">
                                    inverse</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-inverse">inverse</a>
                            </td>
                            <td>
                                <code>btn btn-inverse</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-link">
                                    link</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-link">link</a>
                            </td>
                            <td>
                                <code>btn btn-link</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-primary btn-large">
                                    large</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-primary btn-large">large</a>
                            </td>
                            <td>
                                <code>btn btn-primary btn-large</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-primary btn-small">
                                    small</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-primary btn-small">small</a>
                            </td>
                            <td>
                                <code>btn btn-primary btn-small</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-primary btn-mini">
                                    mini</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-primary btn-mini">mini</a>
                            </td>
                            <td>
                                <code>btn btn-primary btn-mini</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-primary btn-block">
                                    block</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-primary btn-block">block</a>
                            </td>
                            <td>
                                <code>btn btn-primary btn-block</code>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <button class="btn btn-primary disabled">
                                    disabled</button>
                            </td>
                            <td>
                                <a href="#" class="btn btn-primary disabled">disabled</a>
                            </td>
                            <td>
                                <code>btn btn-primary disabled</code>
                            </td>
                        </tr>
                    </tbody>
                </table>
            </div>
        </div>
    </div>

<i class="icon-music"></i>icon-music

<i class="icon-music icon-white"></i>icon-music

    <button class="btn">
        <i class="icon-music"></i>دکمه</button>

  fetchProducts(categoryId?: number) {
    console.log(categoryId);

    this.products = [];

    if (categoryId === undefined || categoryId.toString() === "undefined") {
      return;
    }

> npm install ng2-toasty --save

 npm ERR! Error: EPERM: operation not permitted, rename

"styles": [
    "../node_modules/bootstrap/dist/css/bootstrap.min.css",
    "../node_modules/ng2-toasty/bundles/style-bootstrap.css",
    "styles.css"
],

import { ToastyModule } from "ng2-toasty";

@NgModule({
  imports: [
    BrowserModule,
    ToastyModule.forRoot(),

 <ng2-toasty [position]="'top-right'"></ng2-toasty>

import { ToastyService, ToastOptions } from "ng2-toasty";

export class ProductGroupComponent implements OnInit {

  constructor(
    private productItemsService: ProductItemsService,
    private toastyService: ToastyService) { }

  fetchProducts(categoryId?: number) {
    console.log(categoryId);

    this.products = [];

    if (categoryId === undefined || categoryId.toString() === "undefined") {
      this.toastyService.error(<ToastOptions>{
        title: "Error!",
        msg: "Please select a category.",
        theme: "bootstrap",
        showClose: true,
        timeout: 5000
      });
      return;
    }

    this.productItemsService.getCategories().subscribe(
      data => {
        this.categories = data;
      },
      err => console.log("get error: ", err)
    );

> ng g cl app.error-handler

 installing class
  create src\app\app.error-handler.ts

import { ErrorHandler } from "@angular/core";

export class AppErrorHandler implements ErrorHandler {

  handleError(error: any): void {
    console.log("Error:", error);
  }
}

import { NgModule, ErrorHandler } from "@angular/core";
import { AppErrorHandler } from "./app.error-handler";

@NgModule({
  providers: [
    { provide: ErrorHandler, useClass: AppErrorHandler }
  ]

[HttpGet("[action]/{categoryId:int}")]
public async Task<IActionResult> GetProducts(int categoryId)
{
   throw new Exception();

    this.productItemsService.getProducts(categoryId).subscribe(
      data => {
        this.products = data;
        this.isLoadingProducts = false;
      }// ,
      // err => {
      //   console.log("get error: ", err);
      //   this.isLoadingProducts = false;
      // }
    );

import { ToastyService, ToastOptions } from "ng2-toasty";
import { ErrorHandler } from "@angular/core";

export class AppErrorHandler implements ErrorHandler {

  constructor(private toastyService: ToastyService) {
  }

  handleError(error: any): void {
    // console.log("Error:", error);
    this.toastyService.error(<ToastOptions>{
      title: "Error!",
      msg: "Fatal error!",
      theme: "bootstrap",
      showClose: true,
      timeout: 5000
    });
  }
}

 Uncaught Error: Can't resolve all parameters for AppErrorHandler: (?).

import { ErrorHandler, Inject } from "@angular/core";

export class AppErrorHandler implements ErrorHandler {

  constructor(
    @Inject(ToastyService) private toastyService: ToastyService
  ) {
  }

import { ToastyService, ToastOptions } from "ng2-toasty";
import { ErrorHandler, Inject, NgZone } from "@angular/core";
import { LocationStrategy, PathLocationStrategy } from "@angular/common";

export class AppErrorHandler implements ErrorHandler {

  constructor(
    @Inject(NgZone) private ngZone: NgZone,
    @Inject(ToastyService) private toastyService: ToastyService,
    @Inject(LocationStrategy) private locationProvider: LocationStrategy
  ) {
  }

  handleError(error: any): void {
    // console.log("Error:", error);

    const url = this.locationProvider instanceof PathLocationStrategy ? this.locationProvider.path() : "";
    const message = error.message ? error.message : error.toString();
    this.ngZone.run(() => {
      this.toastyService.error(<ToastOptions>{
        title: "Error!",
        msg: `URL:${url} \n ERROR:${message}`,
        theme: "bootstrap",
        showClose: true,
        timeout: 5000
      });
    });

    // IMPORTANT: Rethrow the error otherwise it gets swallowed
    // throw error;
  }
}

>npm install
>ng build --watch

>dotnet restore
>dotnet watch run

export interface IUser {
    id: number;
    name: string;
    email: string;
    password: string;
}

<form>
    <div class="form-group">
        <label form="name">Username</label>
        <input id="name" type="text" class="form-control" />
    </div>
    <div class="form-group">
        <label form="email">Email</label>
        <input id="email" type="text" class="form-control" />
    </div>
    <div class="form-group">
        <label form="password">Password</label>
        <input id="password" type="password" class="form-control" />
    </div>
    <button class="btn btn-primary" type="submit">Submit</button>
</form>

import { Component } from '@angular/core';
import { Control, ControlGroup, Validators } from '@angular/common';
 
@Component({
    selector: 'signup-form',
    templateUrl: 'app/users/signup-form.component.html'
})
export class SignupFormComponent {
    form = new ControlGroup({
        name: new Control('', Validators.required),
        email: new Control('', Validators.required),
        password: new Control('', Validators.required)
    });
 
    onSubmit(): void {
        console.log(this.form.value);
    }
}

<form [ngFormModel]="form" (ngSubmit)="onSubmit()">
    <div class="form-group">
        <label form="name">Username</label>
        <input id="name" type="text" class="form-control"
               ngControl="name"/>
        <label class="text-danger" *ngIf="!form.controls['name'].valid">
            Username is required.
        </label>
    </div>
    <div class="form-group">
        <label form="email">Email</label>
        <input id="email" type="text" class="form-control"
               ngControl="email" #email="ngForm"/>
        <label class="text-danger" *ngIf="email.touched && !email.valid">
            Email is required.
        </label>
    </div>
    <div class="form-group">
        <label form="password">Password</label>
        <input id="password" type="password" class="form-control"
               ngControl="password" #password="ngForm"/>
        <label class="text-danger" *ngIf="password.touched && !password.valid">
            Password is required.
        </label>
    </div>
    <button class="btn btn-primary" type="submit">Submit</button>
</form>

form = new ControlGroup({
    name: new Control('', Validators.required),
    email: new Control('', Validators.required),
    password: new Control('', Validators.required)
});

 import { Control, ControlGroup, Validators } from '@angular/common';

<form [ngFormModel]="form" (ngSubmit)="onSubmit()">

 <label class="text-danger" *ngIf="!form.controls['name'].valid">

    onSubmit(): void {
        console.log(this.form.value);
    }

//same as before...
import { SignupFormComponent } from './users/signup-form.component';
 
@Component({
    //same as before…
    template: `
                //same as before…                    
                <li><a [routerLink]="['AddUser']">Add User</a></li>
               //same as before…
    `,
    //same as before…
})
@RouteConfig([
    //same as before…    
    { path: '/adduser', name: 'AddUser', component: SignupFormComponent }
])
//same as before...

import { Control, ControlGroup, Validators, FormBuilder } from '@angular/common';

form: ControlGroup;
 
constructor(formBuilder: FormBuilder) {
    this.form = formBuilder.group({
        name: ['', Validators.required],
        email: ['', Validators.required],
        password: ['', Validators.required]
    });
}

import { Control } from '@angular/common';
 
export class UsernameValidators {
    static cannotContainSpace(control: Control) {
        if (control.value.indexOf(' ') >= 0) {
            return { cannotContainSpace: true };
        }
        return null;
    }
}

 { required:true }

{
  minlength : {
     requiredLength : 3,
     actualLength : 1
  }
}

 import { UsernameValidators } from './usernameValidators';

 name: ['', Validators.compose([Validators.required, UsernameValidators.cannotContainSpace])],

<div class="form-group">
    <label form="name">Username</label>
    <input id="name" type="text" class="form-control"
           ngControl="name"
           #name="ngForm" />
    <div *ngIf="name.touched && name.errors">
        <label class="text-danger" *ngIf="name.errors.required">
            Username is required.
        </label>
        <label class="text-danger" *ngIf="name.errors.cannotContainSpace">
            Username can't contain space.
        </label>
    </div>
</div>

import {Control} from '@angular/common';
 
export class EmailValidators {
    static email(control: Control) {
        var regEx = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
        var valid = regEx.test(control.value);
        return valid ? null : { email: true };
    }
}

 control(value: Object, validator?: ValidatorFn, asyncValidator?: AsyncValidatorFn) : Control

nameShouldBeUnique(control: Control) {
    let name: string = control.value;
    return new Promise((resolve) => {
        this._userService.isUserNameUnique(<IUser>{ "name": name }).subscribe(
            (result: IResult) => {
                resolve(                    
                    result.result ? null : { 'nameShouldBeUnique': true }
                );
            },
            error => {
                resolve(null);
            }
        );
    });
}

this.form = _formBuilder.group({
    name: ['', Validators.compose([
        Validators.required,
        UsernameValidators.cannotContainSpace
    ]),
        (control: Control) => this.nameShouldBeUnique(control)],

import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';
import { Observable } from 'rxjs/Observable';
import { Headers, RequestOptions } from '@angular/http';
import { IUser } from  './user';
import { IResult } from './result';
 
@Injectable()
export class UserService {
    private _checkUserUrl = '/home/checkUser';
 
    constructor(private _http: Http) { }
 
    private handleError(error: Response) {
        console.error(error);
        return Observable.throw(error.json().error || 'Server error');
    }
 
    isUserNameUnique(user: IUser): Observable<IResult> {
        let headers = new Headers({ 'Content-Type': 'application/json' }); // for ASP.NET MVC
        let options = new RequestOptions({ headers: headers });
 
        return this._http.post(this._checkUserUrl, JSON.stringify(user), options)
            .map((response: Response) => <IResult>response.json())
            .do(data => console.log("User: " + JSON.stringify(data)))
            .catch(this.handleError);
    }
}

export interface IResult {
    result: boolean;
}

namespace MVC5Angular2.Controllers
{
    public class HomeController : Controller
    {
        [HttpPost]
        public ActionResult CheckUser(User user)
        {
            var isUnique = new { result = true };
            if (user.Name?.Equals("Vahid", StringComparison.OrdinalIgnoreCase) ?? false)
            {
                isUnique = new { result = false };
            }
 
            return new ContentResult
            {
                Content = JsonConvert.SerializeObject(isUnique, new JsonSerializerSettings
                {
                    ContractResolver = new CamelCasePropertyNamesContractResolver()
                }),
                ContentType = "application/json",
                ContentEncoding = Encoding.UTF8
            };
        }
    }
}

@Component({
    selector: 'signup-form',
    templateUrl: 'app/users/signup-form.component.html',
    providers: [ UserService ]
})
export class SignupFormComponent {
 
    constructor(private _formBuilder: FormBuilder, private _userService: UserService) {

<div *ngIf="name.touched && name.errors">
    <label class="text-danger" *ngIf="name.errors.required">
        Username is required.
    </label>
    <label class="text-danger" *ngIf="name.errors.cannotContainSpace">
        Username can't contain space.
    </label>
    <label class="text-danger" *ngIf="name.errors.nameShouldBeUnique">
        This username is already taken.
    </label>
</div>

<input id="name" type="text" class="form-control"
       ngControl="name"
       #name="ngForm" />
<div *ngIf="name.control.pending">
    Checking server, Please wait ...
</div>

onSubmit(): void {
    console.log(this.form.value);
 
    this.form.find('name').setErrors({
        invalidData : true
    }); 
}

<div *ngIf="name.touched && name.errors">
    <label class="text-danger" *ngIf="name.errors.invalidData">
        Check the inputs....
    </label>
</div>

  { name="VahidN", email="email@site.com", password="123"}

import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';
import { Observable } from 'rxjs/Observable';
import { Headers, RequestOptions } from '@angular/http';
import { IUser } from  './user';
import { IResult } from './result';
 
@Injectable()
export class UserService {
    private _addUserUrl = '/home/addUser';
 
    constructor(private _http: Http) { }
 
    private handleError(error: Response) {
        console.error(error);
        return Observable.throw(error.json().error || 'Server error');
    }
 
    addUser(user: IUser): Observable<IUser> {
        let headers = new Headers({ 'Content-Type': 'application/json' }); // for ASP.NET MVC
        let options = new RequestOptions({ headers: headers });
 
        return this._http.post(this._addUserUrl, JSON.stringify(user), options)
            .map((response: Response) => <IUser>response.json())
            .do(data => console.log("User: " + JSON.stringify(data)))
            .catch(this.handleError);
    }
}

[HttpPost]
public ActionResult AddUser(User user)
{
    user.Id = 1; //todo: save user and get id from db
 
    return new ContentResult
    {
        Content = JsonConvert.SerializeObject(user, new JsonSerializerSettings
        {
            ContractResolver = new CamelCasePropertyNamesContractResolver()
        }),
        ContentType = "application/json",
        ContentEncoding = Encoding.UTF8
    };
}

onSubmit(): void {
    console.log(this.form.value);
 
    /*this.form.find('name').setErrors({
            invalidData : true
        });*/
 
    this._userService.addUser(<IUser>this.form.value)
        .subscribe((user: IUser) => {
            console.log(`ID: ${user.id}`);
        });
}

            $('#list').jqGrid({
                caption: "آزمایش نهم",
                // ....
                colModel: [
                    {
                        name: 'myac', width: 80, fixed: true, sortable: false,
                        resize: false,
                        //formatter: 'actions',
                        formatter: function (cellvalue, options, rowObject) {
                            if (cellvalue === undefined && options.rowId === "_empty") {
                                // در حالت نمایش ردیف توکار جدید دکمه‌های ویرایش و حذف معنی ندارند
                                options.colModel.formatoptions.editbutton = false;
                                options.colModel.formatoptions.delbutton = false;
                            }
                            return $.fn.fmatter.actions(cellvalue, options, rowObject);
                        },
                        formatoptions: {
                            keys: true,
                            afterSave: function (rowid, response) {
                            },
                            delbutton: true,
                            delOptions: {
                                url: "@Url.Action("DeleteUser", "Home")"
                            }
                        }
                    }
                ],
                //...
            }).navGrid(
                '#pager',
//...
)
                .jqGrid('gridResize', { minWidth: 400, minHeight: 150 })
                .jqGrid('inlineNav', '#pager',
                {
                    edit: true, add: true, save: true, cancel: true,
                    edittext: "ویرایش", addtext: "جدید", savetext: "ذخیره", canceltext: "لغو",
                    addParams: {
                        // اگر می‌خواهید ردیف‌های جدید در ابتدا ظاهر شوند، این سطر را حذف کنید
                        position: "last", //ردیف‌های جدید در آخر ظاهر می‌شوند
                        rowID: '_empty',
                        useDefValues: true,
                        addRowParams: getInlineNavParams(true)
                    },
                    editParams: getInlineNavParams(false)
                });

        function getInlineNavParams(isAdd) {
            return {
                // استفاده از آدرس‌های مختلف برای حالات ویرایش و ثبت اطلاعات جدید
                url: isAdd ? '@Url.Action("AddUser", "Home")' : '@Url.Action("EditUser","Home")',
                key: true,
                restoreAfterError: false, // این مورد سبب می‌شود تا اعتبارسنجی سمت سرور قابل اعمال شود
                oneditfunc: function (rowId) {
                    // نمایش دکمه‌های ذخیره و لغو داخل همان سطر
                    $("#jSaveButton_" + rowId).show();
                    $("#jCancelButton_" + rowId).show();
                },
                successfunc: function () {
                    var $self = $(this);
                    setTimeout(function () {
                        $self.trigger("reloadGrid"); // دریافت کلید اصلی ردیف از سرور
                    }, 50);
                },
                errorfunc: function (rowid, response, stat) {
                    if (stat != 'error') // this.Response.StatusCode == 200
                        return;

                    var result = $.parseJSON(response.responseText);
                    if (result.success === false) {
                        //نمایش خطای اعتبار سنجی سمت سرور پس از ویرایش یا افزودن
                        $.jgrid.info_dialog($.jgrid.errors.errcap,
                            '<div class="ui-state-error">' + result.message + '</div>',
                            $.jgrid.edit.bClose,
                            { buttonalign: 'center' });
                    }
                }
            };
        }

            if (_usersInMemoryDataSource.Any(
                    user => user.Name.Equals(postData.Name, StringComparison.InvariantCultureIgnoreCase)))
            {
                this.Response.StatusCode = 500; //این مورد برای افزودن داخل ردیف‌های گرید لازم است
                return Json(new { success = false, message = "نام کاربر تکراری است" }, JsonRequestBehavior.AllowGet);
            }

            $('#list').jqGrid({
                caption: "آزمایش نهم",
                //.........
            }).navGrid(
                '#pager',
                //enabling buttons
                { add: true, del: true, edit: true, search: false },
                //edit option
                {
                    //......... 
                    errorTextFormat: serverErrorTextFormat
                },
                //add options
                {
                    //......... 
                    errorTextFormat: serverErrorTextFormat
                },
                //delete options
                {
                    //......... 
                })
                .jqGrid('gridResize', { minWidth: 400, minHeight: 150 })
                .jqGrid('inlineNav', '#pager',
                {
                    //......... 
                });

        function serverErrorTextFormat (response) {
            // در حالتیکه وضعیت خروجی از سرور 200 نیست فراخوانی می‌شود
            var result = $.parseJSON(response.responseText);
            if (result.success === false) {
                return result.message;
            }
            return "لطفا ورودی‌های وارد شده را بررسی کنید";
        }

> ng generate <blueprint> <options>

> ng generate component customer

> ng g c customer

>ng generate component customer --inline-template --inline-style

>ng g c customer –it -is

>ng g c customer
installing component
  create src\app\customer\customer.component.css
  create src\app\customer\customer.component.html
  create src\app\customer\customer.component.spec.ts
  create src\app\customer\customer.component.ts
  update src\app\app.module.ts

 import { CustomerComponent } from './customer/customer.component';

@NgModule({
  declarations: [
   AppComponent,
   CustomerComponent
]})

> ng g s sales -m app.module

> ng g cl models/customer

"defaults": {
    "styleExt": "css",
    "component": {}
}

> ng set defaults.component.flat false
> ng set defaults.directive.flat false
> ng set defaults.styleExt sass

  "defaults": {
    "styleExt": "sass",
    "component": {
      "flat": false
    },
    "directive": {
      "flat": false
    }
  }

<form action="/rest/login" method="POST">
    <input name="username" required>
    <input type="password" name="password" required>
</form>

 <input name=username required>

 <input name=username required>

<div class="bold">I'm a bold element</div>

 <a href="http://www.site.com/blog/">Read the blog</a>

<script>
   document.querySelector('A').href = 'https://www.dntips.ir';
</script>

  <input type="checkbox" checked>

  <script>
      // this does not remove the checked attribute 
      document.querySelector('INPUT').checked = false;
  </script>

  <form action="/submitHandler" method="POST">
      <input name="first-name">
      <input name="last-name" required>
      <input type="email" name="email" required>
      <button disabled>submit</button>
  </form>

 var $result = $('[required], [disabled]');

 var result = document.querySelectorAll('[required], [disabled]');

  <div class="bold">I'm bold</div>
  <span class>I'm not</span>

  var result = document.querySelectorAll('[class]');

  <section>
     <h2>Sites</h2>
     <ul>
          <li>
              <a href="https://www.dntips.ir/">dotnettips</a>
          </li>
          <li>
              <a href="https://google.com/">Google</a>
          </li>
      </ul>
  </section>

 var $result = $('A[href="https://www.dntips.ir/"]');

 var result = document.querySelectorAll('A[href="https://www.dntips.ir/"]');

 var result = document.querySelectorAll('[class]:not([class=""]');

  <a href="https://www.dntips.ir/">home page</a>
  <a href="https://www.dntips.ir/postsarchive">articles</a>
  <a href="https://www.dntips.ir/newsarchive">news</a>

 var result = document.querySelectorAll('A[href*="www.dotnettips.info"]');

<div class="one two three">1 2 3</div>
<div class="onetwothree">123</div>

 var result = document.querySelectorAll('[class∼=two]');

 var hasTwoClass = $divEl.hasClass('two');

 var hasTwoClass = divEl.classList.contains('two');

divEl.classList.remove('red');
divEl.classList.add('blue');

// removes "hide" class
divEl.classList.toggle('hide');

// re-adds "hide" class
divEl.classList.toggle('hide');

  <img id="cat" src="/images/cat.gif">
  <img id="zebra" src="zebra.gif">
  <a href="#zebra">watch the zebra</a>
  <a href="/logout">logout</a>

 var result = document.querySelectorAll('A[href^="#"], [src$=".gif"]');

 <input type="password" name="user-password" required>

// returns "password"
$inputEl.attr('type');

// returns "true"
$inputEl.is('[required]');

// returns "password"
inputEl.getAttribute('type');

// returns "true"
inputEl.hasAttribute('required');

 <input name="temp" required>

 $inputEl
 .attr('type', 'email') // #1
 .removeAttr('required') // #2
 .attr('name', 'userEmail'); // #3

 inputEl.setAttribute('type', 'email'); // #1
inputEl.removeAttribute('required'); // #2
inputEl.setAttribute('name', 'userEmail'); // #3

<div class="alert">
    نمایش اعلانات
</div>

تعدادی کلاس دیگر نیز جهت استفاده از رنگ‌های مختلف نیز توسط بوت استرپ ارائه شده است: 

همچنین اگر مایل بودید می‌توانید با افزودن یک دکمه با کلاس close و ویژگی data-dismiss مساوی alert، امکان بستن پیام را در اختیار کاربر قرار دهید: 

<div class="alert alert-warning alert-dismissable">
  <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
  نمایش اعلان
</div>

در ادامه قصد داریم این پیام را بعد از ثبت اطلاعات، به کاربر نمایش دهیم. یعنی در داخل کد، امکان صدا زدن این نوع پیام‌ها را داشته باشیم.

ابتدا کلاس‌های زیر را تعریف می‌کنیم:

کلاس Alert

public class Alert
{
        public const string TempDataKey = "TempDataAlerts";
        public string AlertStyle { get; set; }
        public string Message { get; set; }
        public bool Dismissable { get; set; }
}

در کلاس فوق خصوصیت یک alert را تعریف کرده‌ایم (از خاصیت TempDataKey جهت پاس دادن alert‌ها به view استفاده می‌کنیم).

public class AlertStyles
{
        public const string Success = "success";
        public const string Information = "info";
        public const string Warning = "warning";
        public const string Danger = "danger";
}

public class BaseController : Controller
{
        public void Success(string message, bool dismissable = false)
        {
            AddAlert(AlertStyles.Success, message, dismissable);
        }

        public void Information(string message, bool dismissable = false)
        {
            AddAlert(AlertStyles.Information, message, dismissable);
        }

        public void Warning(string message, bool dismissable = false)
        {
            AddAlert(AlertStyles.Warning, message, dismissable);
        }

        public void Danger(string message, bool dismissable = false)
        {
            AddAlert(AlertStyles.Danger, message, dismissable);
        }

        private void AddAlert(string alertStyle, string message, bool dismissable)
        {
            var alerts = TempData.ContainsKey(Alert.TempDataKey)
                ? (List<Alert>)TempData[Alert.TempDataKey]
                : new List<Alert>();

            alerts.Add(new Alert
            {
                AlertStyle = alertStyle,
                Message = message,
                Dismissable = dismissable
            });

            TempData[Alert.TempDataKey] = alerts;
        }
}

public ActionResult Index()
        {
            var userInfo = new
            {
                Name = "Sirwan",
                LastName = "Afifi",
            };
 
            ViewData["User"] = userInfo;
            ViewBag.User = userInfo;
            TempData["User"] = userInfo;

            return RedirectToAction("About");
        }

@{
    ViewBag.Title = "About";
}

<h1>Tempdata</h1><p>@TempData["User"]</p>
<h1>ViewData</h1><p>@ViewData["User"]</p>
<h1>ViewBag</h1><p>@ViewBag.User</p>

public class NewsController : BaseController
{
readonly INewsService _newsService;
        readonly IUnitOfWork _uow;
        public NewsController(INewsService newsService, IUnitOfWork uow)
        {
            _newsService = newsService;
            _uow = uow;
        }
        [HttpPost]
        [ValidateAntiForgeryToken]
        [ValidateInput(false)]
        public ActionResult Create(News news)
        {
            if (ModelState.IsValid)
            {
                _newsService.AddNews(news);
                _uow.SaveChanges();
                Success(string.Format("خبر با عنوان  <b>{0}</b> با موفقیت ذخیره گردید!", news.Title), true);
                return RedirectToAction("Index");
            }
            Danger("خطا در هنگام ثبت اطلاعات ");
            return View(news);
        }
        [HttpPost]
        public ActionResult Delete(int id)
        {
            _newsService.DeleteNewsById(id);
            _uow.SaveChanges();
            Danger("اطلاعات مورد نظر با موفقیت حذف گردید!", true);
            return RedirectToAction("Index");
        }
}

@{
    var alerts = TempData.ContainsKey(Alert.TempDataKey)
                ? (List<Alert>)TempData[Alert.TempDataKey]
                : new List<Alert>();

    if (alerts.Any())
    {
        <hr />
    }

    foreach (var alert in alerts)
    {
        var dismissableClass = alert.Dismissable ? "alert-dismissable" : null;
        <div class="alert alert-@alert.AlertStyle @dismissableClass">
            @if (alert.Dismissable)
            {
                <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
            }
            @Html.Raw(alert.Message)
        </div>
    }
}

<div>
                    @{ Html.RenderPartial("_Alerts"); }
                    @RenderBody()
</div>