ex1_basic_usage 

    <script src="Scripts/angular.js"></script>
    <script src="Scripts/angular-translate.js"></script>

        angular.module('app', ['pascalprecht.translate'])
        .config([
        '$translateProvider', function ($translateProvider) {

            // Adding a translation table for the English language
            $translateProvider.translations('en_US', {
                "TITLE": "How to use",
                "HEADER": "You can translate texts by using a filter.",
                "SUBHEADER": "And if you don't like filters, you can use a directive.",
                "HTML_KEYS": "If you don't like an empty elements, you can write a key for the translation as an inner HTML of the directive.",
                "DATA_TO_FILTER": "Your translations might also contain any static ({{staticValue}}) or random ({{randomValue}}) values, which are taken directly from the model.",
                "DATA_TO_DIRECTIVE": "And it's no matter if you use filter or directive: static is still {{staticValue}} and random is still {{randomValue}}.",
                "RAW_TO_FILTER": "In case you want to pass a {{type}} data to the filter, you have only to pass it as a filter parameter.",
                "RAW_TO_DIRECTIVE": "This trick also works for {{type}} with a small mods.",
                "SERVICE": "Of course, you can translate your strings directly in the js code by using a $translate service.",
                "SERVICE_PARAMS": "And you are still able to pass params to the texts. Static = {{staticValue}}, random = {{randomValue}}."
            });

            // Adding a translation table for the Russian language
            $translateProvider.translations('ru_RU', {
                "TITLE": "Как пользоваться",
                "HEADER": "Вы можете переводить тексты при помощи фильтра.",
                "SUBHEADER": "А если Вам не нравятся фильтры, Вы можете воспользоваться директивой.",
                "HTML_KEYS": "Если вам не нравятся пустые элементы, Вы можете записать ключ для перевода в как внутренний HTML директивы.",
                "DATA_TO_FILTER": "Ваши переводы также могут содержать любые статичные ({{staticValue}}) или случайные ({{randomValue}}) значения, которые берутся прямо из модели.",
                "DATA_TO_DIRECTIVE": "И совершенно не важно используете ли Вы фильтр или директиву: статическое значение по прежнему {{staticValue}} и случайное - {{randomValue}}.",
                "RAW_TO_FILTER": "Если вы хотите передать \"сырые\" ({{type}}) данные фильтру, Вам всего лишь нужно передать их фильтру в качестве параметров.",
                "RAW_TO_DIRECTIVE": "Это также работает и для директив ({{type}}) с небольшими модификациями.",
                "SERVICE": "Конечно, Вы можете переводить ваши строки прямо в js коде при помощи сервиса $translate.",
                "SERVICE_PARAMS": "И вы все еще можете передавать параметры в тексты. Статическое значение = {{staticValue}}, случайное = {{randomValue}}."
            });

            // Tell the module what language to use by default
            $translateProvider.preferredLanguage('en_US');

        }])

.controller('ctrl', ['$scope', '$translate', function ($scope, $translate) {

        $scope.tlData = {
            staticValue: 42,
            randomValue: Math.floor(Math.random() * 1000)
        };

        $scope.jsTrSimple = $translate.instant('SERVICE');
        $scope.jsTrParams = $translate.instant('SERVICE_PARAMS', $scope.tlData);

        $scope.setLang = function (langKey) {
            // You can change the language during runtime
            $translate.use(langKey);

            // A data generated by the script have to be regenerated
            $scope.jsTrSimple = $translate.instant('SERVICE');
            $scope.jsTrParams = $translate.instant('SERVICE_PARAMS', $scope.tlData);
        };

    }]);

    <p>
        <a href="#" ng-click="setLang('en_US')">English</a>
        |
        <a href="#" ng-click="setLang('ru_RU')">Русский</a>
    </p>
    <!-- Translation by a filter -->
    <h1>{{'HEADER' | translate}}</h1>
    <!-- Translation by a directive -->
    <h2 translate="SUBHEADER">Subheader</h2>
    <!-- Using inner HTML as a key for translation -->
    <p translate>HTML_KEYS</p>
    <hr>
    <!-- Passing a data object to the translation by the filter -->
    <p>{{'DATA_TO_FILTER' | translate: tlData}}</p>
    <!-- Passing a data object to the translation by the directive -->
    <p translate="DATA_TO_DIRECTIVE" translate-values="{{tlData}}"></p>
    <hr>
    <!-- Passing a raw data to the filter -->
    <p>{{'RAW_TO_FILTER' | translate:'{ type: "raw" }' }}</p>
    <!-- Passing a raw data to the filter -->
    <p translate="RAW_TO_DIRECTIVE" translate-values="{ type: 'directives' }"></p>
    <hr>
    <!-- Using a $translate service -->
    <p>{{jsTrSimple}}</p>
    <!-- Passing a data to the $translate service -->
    <p>{{jsTrParams}}</p>

ex2_remember_language_cookies

    <script src="Scripts/angular-cookies.js"></script>
    <script src="Scripts/angular-translate-storage-cookie.js"></script>

// Tell the module to store the language in the cookie
$translateProvider.useCookieStorage();

ex3_remember_language_local_storage

این مثال همانند مثال قبل رفتار می‌کند، با این تفاوت که به جای اینکه کلید زبان کنونی را درون کوکی ذخیره کند، آن را درون Local Storage با نام NG_TRANSLATE_LANG_KEY قرار می‌دهد. برای اجرا کافیست اسکریپت‌ها و تکه کد زیر را با موارد مثال قبل جایگزین کنید.

<script src="Scripts/angular-translate-storage-local.js"></script>


// Tell the module to store the language in the local storage
$translateProvider.useLocalStorage();

مثال های ex4_set_a_storage_key  و ex5_set_a_storage_prefix نام کلیدی که برای ذخیره سازی زبان کنونی در کوکی یا Local Storage قرار می‌گیرد را تغییر می‌دهد که به دلیل سادگی از شرح آن می‌گذریم. 

ex6_namespace_support 

translate table در angular-translate قابلیت مفید namespacing را نیز داراست. این قابلیت به ما کمک می‌کند که جهت کپسوله کردن بخش‌های مختلف، ترجمه آنها را با namespace‌های خاص خود نمایش دهیم. به مثال زیر توجه کنید:

            $translateProvider.translations('en_US', {
                "TITLE": "How to use namespaces",
                "ns1": {
                    "HEADER": "A translations table supports namespaces.",
                    "SUBHEADER": "So you can to structurize your translation table well."
                },
                "ns2": {
                    "HEADER": "Do you want to have a structured translations table?",
                    "SUBHEADER": "You can to use namespaces now."
                }
            });

همانطور که توجه می‌کنید بخش ns1 خود شامل زیر مجموعه‌هایی است و ns2 نیز به همین صورت. هر کدام دارای کلید HEADER و SUBHEADER می‌باشند. فرض کنید هر کدام از این بخش‌ها می‌خواهند اطلاعات درون یک section را نمایش دهند. حال به نحوه‌ی فراخوانی این translate tableها دقت کنید:

<!-- section 1: Translate Table Called by ns1 namespace -->    
<h1 translate>ns1.HEADER</h1>
<h2 translate>ns1.SUBHEADER</h2>

<!-- section 2: Translate Table Called by ns2 namespace -->
<h1 translate>ns2.HEADER</h1>
<h2 translate>ns2.SUBHEADER</h2>

به همین سادگی می‌توان تمامی بخش‌ها را با namespace‌های مختلف در translate table قرار داد.

در بخش بعدی (پایانی) شش قابلیت دیگر angular translate که شامل فراخوانی translate table از یک فایل JSON، فراخوانی فایل‌های translate table به صورت lazy load و تغییر زبان بخشی از صفحه به صورت پویا هستند، بررسی خواهند شد.

فایل پروژه: AngularJs-Translate-BestPractices.zip  

using System;
using System.Collections.Generic;

namespace MvcApplication17.Models
{
    public class Employee
    {
        public int Id { set; get; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public DateTime AddDate { get; set; }
        public double Salary { get; set; }
        public IList<Project> Projects { get; set; }
    }
}

namespace MvcApplication17.Models
{
    public class Project
    {
        public int Id { set; get; }
        public string Name { set; get; }
    }
}

using System;
using System.Collections.Generic;

namespace MvcApplication17.Models
{
    public static class EmployeeDataSource
    {
        public static IList<Employee> CreateEmployees()
        {
            var list = new List<Employee>();
            var rnd = new Random();
            for (int i = 1; i <= 1000; i++)
            {
                list.Add(new Employee
                    {
                        Id = i + 1000,
                        FirstName = "fName " + i,
                        LastName = "lName " + i,
                        AddDate = DateTime.Now.AddYears(-rnd.Next(1, 10)),
                        Salary = rnd.Next(400, 3000),
                        Projects = CreateRandomProjects()
                    });
            }
            return list;
        }

        private static IList<Project> CreateRandomProjects()
        {
            var list = new List<Project>();
            var rnd = new Random();
            for (int i = 0; i < rnd.Next(1, 7); i++)
            {
                list.Add(new Project
                {
                    Id = i,
                    Name = "Project " + i
                });
            }
            return list;
        }
    }
}

using System.Web.Mvc;
using MvcApplication17.Models;

namespace MvcApplication17.Controllers
{
    public class HomeController : Controller
    {
        [HttpPost]
        public ActionResult Delete(int? id)
        {
            return RedirectToAction("Index");
        }

        [HttpGet]
        public ActionResult Edit(int? id)
        {
            return View();
        }

        [HttpGet]
        public ActionResult Index(string sort, string sortdir, int? page = 1)
        {
            var list = EmployeeDataSource.CreateEmployees();
            return View(list);
        }
    }
}

http://localhost:3034/?sort=LastName&sortdir=ASC&page=3

@using System.Globalization
@model IList<MvcApplication17.Models.Employee>
           
@{
    ViewBag.Title = "Index";
}

@helper WebGridPageFirstItem(WebGrid grid)
{
    @(((grid.PageIndex + 1) * grid.RowsPerPage) - (grid.RowsPerPage - 1));
}

@helper WebGridPageLastItem(WebGrid grid)
{
    if (grid.TotalRowCount < (grid.PageIndex + 1 * grid.RowsPerPage))
    {
      @grid.TotalRowCount;
    }
    else
    {
      @((grid.PageIndex + 1) * grid.RowsPerPage);
    }
}

<h2>Employees List</h2>

@{ 
    var grid = new WebGrid(
        source: Model,
        canPage: true,
        rowsPerPage: 10,
        canSort: true,
        defaultSort: "FirstName"
    );
    var salaryPageSum = 0;
    var taxPageSum = 0;
    var rowIndex = ((grid.PageIndex + 1) * grid.RowsPerPage) - (grid.RowsPerPage - 1);
}

<div id="container">
    @grid.GetHtml(
            tableStyle: "webgrid",
            headerStyle: "webgrid-header",
            footerStyle: "webgrid-footer",
            alternatingRowStyle: "webgrid-alternating-row",
            selectedRowStyle: "webgrid-selected-row",
            rowStyle: "webgrid-row-style",
            htmlAttributes: new { id = "MyGrid" },
            mode: WebGridPagerModes.All,
            columns: grid.Columns(
                 grid.Column(header: "#",
                             style: "text-align-center-col",
                             format: @<text>@(rowIndex++)</text>),
                 grid.Column(columnName: "FirstName", header: "First Name",
                             format: @<span style='font-weight: bold'>@item.FirstName</span>,
                             style: "text-align-center-col"),
                 grid.Column(columnName: "LastName", header: "Last Name"),
                 grid.Column(header: "Image",
                             style: "text-align-center-col",
                             format: @<text><img alt="@item.Id" src="@Url.Content("~/images/" + @item.Id + ".jpg")" /></text>),
                 grid.Column(columnName: "AddDate", header: "Start",
                             style: "text-align-center-col",
                             format: item =>
                             {
                                 int ym = item.AddDate.Year;
                                 int mm = item.AddDate.Month;
                                 int dm = item.AddDate.Day;
                                 var persianCalendar = new PersianCalendar();
                                 int ys = persianCalendar.GetYear(new DateTime(ym, mm, dm, new GregorianCalendar()));
                                 int ms = persianCalendar.GetMonth(new DateTime(ym, mm, dm, new GregorianCalendar()));
                                 int ds = persianCalendar.GetDayOfMonth(new DateTime(ym, mm, dm, new GregorianCalendar()));
                                 return ys + "/" + ms.ToString("00") + "/" + ds.ToString("00");

                             }),
                 grid.Column(columnName: "Salary", header: "Salary",
                             format: item =>
                             {
                                 salaryPageSum += item.Salary;
                                 return string.Format("${0:n0}", item.Salary);
                             },
                             style: "text-align-center-col"),
                 grid.Column(header: "Tax", canSort: true,
                             format: item =>
                             {
                                 var tax = item.Salary * 0.2;
                                 taxPageSum += tax;
                                 return string.Format("${0:n0}", tax);
                             }),
                 grid.Column(header: "Projects", columnName: "Projects",
                             style: "text-align-center-col",
                             format: item =>
                             {
                                 var subGrid = new WebGrid(
                                                        source: item.Projects,
                                                        canPage: false,
                                                        canSort: false
                                                        );
                                 return subGrid.GetHtml(
                                                        htmlAttributes: new { id = "MySubGrid" },
                                                        tableStyle: "webgrid",
                                                        headerStyle: "webgrid-header",
                                                        footerStyle: "webgrid-footer",
                                                        alternatingRowStyle: "webgrid-alternating-row",
                                                        selectedRowStyle: "webgrid-selected-row",
                                                        rowStyle: "webgrid-row-style"
                                     );
                             }),
                 grid.Column(header: "",
                             style: "text-align-center-col",
                             format: item => @Html.ActionLink(linkText: "Edit", actionName: "Edit",
                                                              controllerName: "Home", routeValues: new { id = item.Id },
                                                              htmlAttributes: null)),
                 grid.Column(header: "",
                             format: @<form action="/Home/Delete/@item.Id" method="post"><input type="submit"
                                            onclick="return confirm('Do you want to delete this record?');"
                                            value="Delete"/></form>),
                 grid.Column(header: "", format: item => item.GetSelectLink("Select"))
                      )
                  )

    <strong>Page:</strong> @(grid.PageIndex + 1) / @grid.PageCount, 
    <strong>Records:</strong> @WebGridPageFirstItem(@grid) - @WebGridPageLastItem(@grid) of @grid.TotalRowCount

    @*
    @if (@grid.HasSelection)
    {
        @RenderPage("~/views/path/_partial_view.cshtml", new { Employee = grid.SelectedRow })
    }
    *@
</div>

@section script{
<script type="text/javascript">
    $(function () {
        $('#MyGrid tbody:first').append(
        '<tr class="total-row"><td></td>\
         <td></td><td></td><td></td>\
         <td><strong>Total:</strong></td>\
         <td>@string.Format("${0:n0}", @salaryPageSum)</td>\
         <td>@string.Format("${0:n0}", @taxPageSum)</td>\
         <td></td><td></td><td></td></tr>');
    });
</script>
}

@{ 
    var grid = new WebGrid(
        source: Model,
        canPage: true,
        rowsPerPage: 10,
        canSort: true,
        defaultSort: "FirstName"
    );
    var salaryPageSum = 0;
    var taxPageSum = 0;
    var rowIndex = ((grid.PageIndex + 1) * grid.RowsPerPage) - (grid.RowsPerPage - 1);
}

tableStyle: "webgrid",
headerStyle: "webgrid-header",
footerStyle: "webgrid-footer",
alternatingRowStyle: "webgrid-alternating-row",
selectedRowStyle: "webgrid-selected-row",
rowStyle: "webgrid-row-style",
htmlAttributes: new { id = "MyGrid" },

<div id="container">
      <table class="webgrid" id="MyGrid">
        <thead>
          <tr class="webgrid-header">

/* Styles for WebGrid
-----------------------------------------------------------*/
.webgrid
{
 width: 100%;
 margin: 0px;
 padding: 0px;
 border: 0px;
 border-collapse: collapse;
 font-family: Tahoma;
 font-size: 9pt;
}

.webgrid a
{
 color: #000;
}

.webgrid-header
{
 padding: 0px 5px;
 text-align: center;
 border-bottom: 2px solid #739ace;
 height: 20px;
 border-top: 2px solid #D6E8FF;
 border-left: 2px solid #D6E8FF;
 border-right: 2px solid #D6E8FF;
}

.webgrid-header th
{
 background-color: #eaf0ff;
 border-right: 1px solid #ddd;
}

.webgrid-footer
{
 padding: 6px 5px;
 text-align: center;
 background-color: #e8eef4;
 border-top: 2px solid #3966A2;
 height: 25px;
 border-bottom: 2px solid #D6E8FF;
 border-left: 2px solid #D6E8FF;
 border-right: 2px solid #D6E8FF;
}

.webgrid-alternating-row
{
 height: 22px;
 background-color: #f2f2f2;
 border-bottom: 1px solid #d2d2d2;
 border-left: 2px solid #D6E8FF;
 border-right: 2px solid #D6E8FF;
}

.webgrid-row-style
{
 height: 22px;
 border-bottom: 1px solid #d2d2d2;
 border-left: 2px solid #D6E8FF;
 border-right: 2px solid #D6E8FF;
}

.webgrid-selected-row
{
 font-weight: bold;
}

.text-align-center-col
{
 text-align: center;
}

.total-row
{
 background-color:#f9eef4;
}

[Flags]
public enum WebGridPagerModes
{
        Numeric = 1,
        //
        NextPrevious = 2,
        //
        FirstLast = 4,
        //
        All = 7,
}

grid.Column(columnName: "FirstName", header: "First Name",
                             format: @<span style='font-weight: bold'>@item.FirstName</span>,
                             style: "text-align-center-col"),
grid.Column(columnName: "LastName", header: "Last Name"),

Func<dynamic, object> format

format: @<span style='font-weight: bold'>@item.FirstName</span>
or
format: item =>
                     {
                          salaryPageSum += item.Salary;
                           return string.Format("${0:n0}", item.Salary);
                      }

grid.Column(header: "#",
                 style: "text-align-center-col",
                 format: @<text>@(rowIndex++)</text>),

grid.Column(header: "Image",
                  style: "text-align-center-col",
                  format: @<text><img alt="@item.Id" src="@Url.Content("~/images/" + @item.Id + ".jpg")" /></text>),

grid.Column(columnName: "AddDate", header: "Start",
                  style: "text-align-center-col",
                  format: item =>
                  {
                       int ym = item.AddDate.Year;
                       int mm = item.AddDate.Month;
                       int dm = item.AddDate.Day;
                       var persianCalendar = new PersianCalendar();
                       int ys = persianCalendar.GetYear(new DateTime(ym, mm, dm, new GregorianCalendar()));
                       int ms = persianCalendar.GetMonth(new DateTime(ym, mm, dm, new GregorianCalendar()));
                       int ds = persianCalendar.GetDayOfMonth(new DateTime(ym, mm, dm, new GregorianCalendar()));
                       return ys + "/" + ms.ToString("00") + "/" + ds.ToString("00");
                    }),

grid.Column(columnName: "Salary", header: "Salary",
                 format: item =>
                             {
                                 salaryPageSum += item.Salary;
                                 return string.Format("${0:n0}", item.Salary);
                             },
                             style: "text-align-center-col"),
grid.Column(header: "Tax", canSort: true,
                             format: item =>
                             {
                                 var tax = item.Salary * 0.2;
                                 taxPageSum += tax;
                                 return string.Format("${0:n0}", tax);
                             }),

grid.Column(header: "Projects", columnName: "Projects",
                  style: "text-align-center-col",
                  format: item =>
                  {
                                 var subGrid = new WebGrid(
                                                        source: item.Projects,
                                                        canPage: false,
                                                        canSort: false
                                                        );
                                 return subGrid.GetHtml(
                                                        htmlAttributes: new { id = "MySubGrid" },
                                                        tableStyle: "webgrid",
                                                        headerStyle: "webgrid-header",
                                                        footerStyle: "webgrid-footer",
                                                        alternatingRowStyle: "webgrid-alternating-row",
                                                        selectedRowStyle: "webgrid-selected-row",
                                                        rowStyle: "webgrid-row-style"
                                     );
                       }),

grid.Column(header: "",
                  style: "text-align-center-col",
                   format: item => @Html.ActionLink(linkText: "Edit", actionName: "Edit",
                                                              controllerName: "Home", routeValues: new { id = item.Id },
                                                              htmlAttributes: null)),
grid.Column(header: "",
                  format: @<form action="/Home/Delete/@item.Id" method="post"><input type="submit"
                                            onclick="return confirm('Do you want to delete this record?');"
                                            value="Delete"/></form>),
grid.Column(header: "", format: item => item.GetSelectLink("Select"))

@if (@grid.HasSelection)
    {
        @RenderPage("~/views/path/_partial_view.cshtml", new { Employee = grid.SelectedRow })
    }

<strong>Page:</strong> @(grid.PageIndex + 1) / @grid.PageCount, 
    <strong>Records:</strong> @WebGridPageFirstItem(@grid) - @WebGridPageLastItem(@grid) of @grid.TotalRowCount

@section script{
<script type="text/javascript">
    $(function () {
        $('#MyGrid tbody:first').append(
        '<tr class="total-row"><td></td>\
         <td></td><td></td><td></td>\
         <td><strong>Total:</strong></td>\
         <td>@string.Format("${0:n0}", @salaryPageSum)</td>\
         <td>@string.Format("${0:n0}", @taxPageSum)</td>\
         <td></td><td></td><td></td></tr>');
    });
</script>
}

<head>
    <title>@ViewBag.Title</title>
    <link href="@Url.Content("~/Content/Site.css")" rel="stylesheet" type="text/css" />
    <script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>
    @RenderSection("script", required: false)
</head>

class PirateName {
  ...
  String get jsonString => JSON.encode({"f": _firstName, "a": _appellation});
}

final String TREASURE_KEY = 'pirateName';

void main() {
  ...
}

void setBadgeName(PirateName newName) {
  if (newName == null) {
    return;
  }
  querySelector('#badgeName').text = newName.pirateName;
  window.localStorage[TREASURE_KEY] = newName.jsonString;
}

void setBadgeName(PirateName newName) {
  ...
}

PirateName getBadgeNameFromStorage() {
  String storedName = window.localStorage[TREASURE_KEY];
  if (storedName != null) {
    return new PirateName.fromJSON(storedName);
  } else {
    return null;
  }
}

void main() {
  ...
  setBadgeName(getBadgeNameFromStorage());
}

{ "names": [ "Anne", "Bette", "Cate", "Dawn",
        "Elise", "Faye", "Ginger", "Harriot",
        "Izzy", "Jane", "Kaye", "Liz",
        "Maria", "Nell", "Olive", "Pat",
        "Queenie", "Rae", "Sal", "Tam",
        "Uma", "Violet", "Wilma", "Xana",
        "Yvonne", "Zelda",
        "Abe", "Billy", "Caleb", "Davie",
        "Eb", "Frank", "Gabe", "House",
        "Icarus", "Jack", "Kurt", "Larry",
        "Mike", "Nolan", "Oliver", "Pat",
        "Quib", "Roy", "Sal", "Tom",
        "Ube", "Val", "Walt", "Xavier",
        "Yvan", "Zeb"],
  "appellations": [ "Awesome", "Captain",
        "Even", "Fighter", "Great", "Hearty",
        "Jackal", "King", "Lord",
        "Mighty", "Noble", "Old", "Powerful",
        "Quick", "Red", "Stalwart", "Tank",
        "Ultimate", "Vicious", "Wily", "aXe", "Young",
        "Brave", "Eager",
        "Kind", "Sandy",
        "Xeric", "Yellow", "Zesty"]}

...
  <div>
    <input type="text" id="inputName" maxlength="15" disabled>
  </div>
  <div>
    <button id="generateButton" disabled>Aye! Gimme a name!</button>
  </div>
...

import 'dart:html';
import 'dart:math' show Random;
import 'dart:convert' show JSON;

import 'dart:async' show Future;

class PirateName {
  ...
  static List<String> names = [];
  static List<String> appellations = [];
  ...
}

class PirateName {
  ...

  static Future readyThePirates() {
    var path = 'piratenames.json';
    return HttpRequest.getString(path)
        .then(_parsePirateNamesFromJSON);
  }
  
  static _parsePirateNamesFromJSON(String jsonString) {
    Map pirateNames = JSON.decode(jsonString);
    names = pirateNames['names'];
    appellations = pirateNames['appellations'];
  }
}

SpanElement badgeNameElement;

void main() {
  ...
}

void main() {
  InputElement inputField = querySelector('#inputName');
  inputField.onInput.listen(updateBadge);
  genButton = querySelector('#generateButton');
  genButton.onClick.listen(generateBadge);
  
  badgeNameElement = querySelector('#badgeName');
  ...
}

void main() {
  ...
  
  PirateName.readyThePirates()
    .then((_) {
      //on success
      inputField.disabled = false; //enable
      genButton.disabled = false;  //enable
      setBadgeName(getBadgeNameFromStorage());
    })
    .catchError((arrr) {
      print('Error initializing pirate names: $arrr');
      badgeNameElement.text = 'Arrr! No names.';
    });
}

namespace ShowAlertSignalR.Models
{
    public class Product
    {
        public int Id { get; set; }
        public string Title { get; set; }
        public string Description { get; set; }
        public float Price { get; set; }
        public Category Category { get; set; }

    }

    public enum Category
    {
        [Display(Name = "دسته بندی اول")]
        Cat1,
        [Display(Name = "دسته بندی دوم")]
        Cat2,
        [Display(Name = "دسته بندی سوم")]
        Cat3
    }
}

namespace ShowAlertSignalR.Models
{
    public class ProductDbContext : DbContext
    {
        public ProductDbContext() : base("productSample")
        {
            Database.Log = sql => Debug.Write(sql);
        }
        public DbSet<Product> Products { get; set; }
    }
}

[HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Create(Product product)
        {
            if (ModelState.IsValid)
            {
                db.Products.Add(product);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(product);
        }

public ActionResult Index(bool notifyUsers = false)
        {
            ViewBag.NotifyUsers = notifyUsers;
            return View(db.Products.ToList());
        }

[HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Create(Product product)
        {
            if (ModelState.IsValid)
            {
                db.Products.Add(product);
                db.SaveChanges();
                return RedirectToAction("Index", new { notifyUsers = true });
            }

            return View(product);
        }

namespace ShowAlertSignalR.Hubs
{
    public class NotificationHub : Hub
    {
        public void SendNotification()
        {
            Clients.Others.ShowNotification();
        }
    }
}

@section scripts
{
    
    <script src="~/Scripts/jquery.signalR-2.0.2.min.js"></script>
    <script src="~/signalr/hubs"></script>
    <script>

        var notify = $.connection.notificationHub;
        notify.client.showNotification = function() {
            $('#result').append("<div class='alert alert-info alert-dismissable'>" +
                "<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;</button>" +
            "رکورد جدیدی هم اکنون ثبت گردید، برای مشاهده آن صفحه را بروزرسانی کنید" + "</div>");
        };
        $.connection.hub.start().done(function() {
            @{
                if (ViewBag.NotifyUsers)
                {
                    <text>notify.server.sendNotification();</text>
                }
            }
        });
    </script>
}

<div>
    <!-- upload form -->
    <!-- hidden crop params -->
    <input type="hidden" id="x1" name="x1" />
    <input type="hidden" id="y1" name="y1" />
    <input type="hidden" id="x2" name="x2" />
    <input type="hidden" id="y2" name="y2" />
    <h2>ابتدا تصویر خود را انتخاب کنید</h2>
    <div><input type="file" name="postedFileBase" data-buttonText="انتخاب تصویر" id="image_file" onchange="fileSelectHandler()" /></div>
    <div></div>
    <div>
        <h2>قسمتی از تصویر را انتخاب نمایید</h2>
        <img id="preview" />
        <div>
            <label>حجم فایل </label> <input type="text" id="filesize" name="filesize" />
            <label>نوع فایل</label> <input type="text" id="filetype" name="filetype" />
            <label>ابعاد فایل</label> <input style="direction: ltr;" type="text" id="filedim" name="filedim" />

        </div>
    </div>

</div>

.bheader {
background-color: #DDDDDD;
border-radius: 10px 10px 0 0;
padding: 10px 0;
text-align: center;
}
.bbody {
color: #000;
overflow: hidden;
padding-bottom: 20px;
text-align: center;
background: -moz-linear-gradient(#ffffff, #f2f2f2);
background: -ms-linear-gradient(#ffffff, #f2f2f2);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #ffffff), color-stop(100%, #f2f2f2));
background: -webkit-linear-gradient(#ffffff, #f2f2f2);
background: -o-linear-gradient(#ffffff, #f2f2f2);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#f2f2f2');
-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#f2f2f2')";
background: linear-gradient(#ffffff, #f2f2f2);
}
.bbody h2, .info, .error {
margin: 10px 0;
}
.step2, .error {
display: none;
}
.error {
color: red;
}
.info {
}
label {
margin: 0 5px;
}
.roundinput {
border: 1px solid #CCCCCC;
border-radius: 10px;
padding: 4px 8px;
text-align: center;
width: 150px;
}
.jcrop-holder {
display: inline-block;
}
input[type=submit] {
background: #e3e3e3;
border: 1px solid #bbb;
border-radius: 3px;
-webkit-box-shadow: inset 0 0 1px 1px #f6f6f6;
box-shadow: inset 0 0 1px 1px #f6f6f6;
color: #333;
padding: 8px 0 9px;
text-align: center;
text-shadow: 0 1px 0 #fff;
width: 150px;
}
input[type=submit]:hover {
background: #d9d9d9;
-webkit-box-shadow: inset 0 0 1px 1px #eaeaea;
box-shadow: inset 0 0 1px 1px #eaeaea;
color: #222;
cursor: pointer;
}
input[type=submit]:active {
background: #d0d0d0;
-webkit-box-shadow: inset 0 0 1px 1px #e3e3e3;
box-shadow: inset 0 0 1px 1px #e3e3e3;
color: #000;
}

function bytesToSize(bytes) {
    var sizes = ['بایت', 'کیلو بایت', 'مگابایت'];
    if (bytes == 0) return 'n/a';
    var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)));
    return (bytes / Math.pow(1024, i)).toFixed(1) + ' ' + sizes[i];
};

function updateInfo(e) {
    $('#x1').val(e.x);
    $('#y1').val(e.y);
    $('#x2').val(e.x2);
    $('#y2').val(e.y2);
};

var jcrop_api, boundx, boundy;
function fileSelectHandler() {

    var oFile = $('#image_file')[0].files[0];

    $('.error').hide();
    var rFilter = /^(image\/jpeg|image\/png)$/i;
    if (!rFilter.test(oFile.type)) {
        $('.error').html('فقط تصویر معتبر انتخاب نمایید').show();
        return;
    }

   
    var oImage = document.getElementById('preview');

    var oReader = new FileReader();
    oReader.onload = function (e) {

        oImage.src = e.target.result;
        

        oImage.onload = function () { 
          

            $('.step2').fadeIn(500);

            var sResultFileSize = bytesToSize(oFile.size);
            $('#filesize').val(sResultFileSize);
            $('#filetype').val(oFile.type);
            $('#filedim').val(oImage.naturalWidth + ' x ' + oImage.naturalHeight);
     
            if (typeof jcrop_api != 'undefined') {
                jcrop_api.destroy();
                jcrop_api = null;
                $('#preview').width(oImage.naturalWidth);
                $('#preview').height(oImage.naturalHeight);
            }
  
                $('#preview').Jcrop({

                    aspectRatio: 2,
                    bgFade: true,
                    bgOpacity: .3, 
                    onChange: updateInfo,
                    onSelect: updateInfo
                }, function () {
 
                    //var bounds = this.getBounds();
                    //var boundx = bounds[0];
                    //var boundy = bounds[1];

                    // Store the Jcrop API in the jcrop_api variable
                    jcrop_api = this;
                });
        };
    };
    oReader.readAsDataURL(oFile);
}

function fileSelectHandler() {
    var oFile = $('#image_file')[0].files[0];
    $('.error').hide();
    var rFilter = /^(image\/jpeg|image\/png)$/i;
    if (!rFilter.test(oFile.type)) {
        $('.error').html('فقط تصویر معتبر انتخاب نمایید').show();
        return;
    }

   var oImage = document.getElementById('preview');
    var oReader = new FileReader();
    oReader.onload = function (e) {

        oImage.src = e.target.result;
        oImage.onload = function () {
       
            $('.step2').fadeIn(500);

            var sResultFileSize = bytesToSize(oFile.size);
            $('#filesize').val(sResultFileSize);
            $('#filetype').val(oFile.type);
            $('#filedim').val(oImage.naturalWidth + ' x ' + oImage.naturalHeight);
   
            if (typeof jcrop_api != 'undefined') {
                jcrop_api.destroy();
                jcrop_api = null;
                $('#preview').width(oImage.naturalWidth);
                $('#preview').height(oImage.naturalHeight);
            }
            $('#preview').Jcrop({

                aspectRatio: 2,
                bgFade: true, 
                bgOpacity: .3, 
                onChange: updateInfo,
                onSelect: updateInfo,
                onRelease: clearInfo
            }, function () {

                //var bounds = this.getBounds();
                //var boundx = bounds[0];
                //var boundy = bounds[1];

                jcrop_api = this;
            });
        };
    };
    oReader.readAsDataURL(oFile);

minSize:[40,20]

aspectRatio:1.5

function updateInfo(e) {
    $('#x1').val(e.x);
    $('#y1').val(e.y);
    $('#x2').val(e.x2);
    $('#y2').val(e.y2);
};

function bytesToSize(bytes) {
    var sizes = ['بایت', 'کیلو بایت', 'مگابایت'];
    if (bytes == 0) return 'n/a';
    var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)));
    return (bytes / Math.pow(1024, i)).toFixed(1) + ' ' + sizes[i];
};

public static byte[] Resize(this byte[] byteImageIn, int x1,int y1,int x2,int y2)
        {

            ImageConverter ic = new ImageConverter();
            Image src = (Image)(ic.ConvertFrom(byteImageIn)); 

            Bitmap target = new Bitmap(x2 - x1, y2 - y1);
            using (Graphics graphics = Graphics.FromImage(target))
                graphics.DrawImage(src, new Rectangle(0, 0, target.Width, target.Height),
                    new Rectangle(x1,y1,x2-x1,y2-y1), 
                    GraphicsUnit.Pixel);
            src = target;
            using (var ms = new MemoryStream())
            {
                src.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                return ms.ToArray();
            }

 }

<Albums>
  <Album>
    <name>Modern Talking</name>
    <cover>http://album.com/a.jpg</cover>
    <Genres>
      <Genre>POP</Genre>
      <Genre>Jazz</Genre>
      <Genre>Classic</Genre>
    </Genres>
    <Description>
      this is a marvelous Album
    </Description>
    <price>
      25.99$
    </price>
  </Album>
</Albums>

<div>
  <img src="" alt="image" />
  <h3>
    <xsl:value-of select="albums/album/name" />
  </h3>
  <h4>Artist Name 1</h4>
  <h5>POP</h5>
  <h6>25/5/2015</h6>
  <h7>this is description</h7>
  <div>
    <a href="#">More</a>
  </div>
</div>

<xsl:for-each select="albums/album">
  <div>
    <img src="" alt="image" />
    <h3>
      <xsl:value-of select="name" />
    </h3>
    <h4>Artist Name 1</h4>
    <h5>POP</h5>
    <h6>25/5/2015</h6>
    <h7>this is description</h7>
    <div>
      <a href="#">More</a>
    </div>
  </div>
</xsl:for-each>

<img src="{cover}" width="200px" height="200px">
  <xsl:value-of select="cover" />
</img>

<xsl:element name="img">
  <xsl:attribute name="src">
    <xsl:value-of select="cover"/>
  </xsl:attribute>
  <xsl:attribute name="width">
    200px
  </xsl:attribute>
  <xsl:attribute name="height">
    200px
  </xsl:attribute>
  <xsl:value-of select="cover"/>
</xsl:element>

<xsl:variable name="numprice" select="number(substring(price,1,string-length(price)-1))" />

<xsl:if test="$numprice>=10">
  <h4 >
    <span style='text-decoration:line-through'>
      <xsl:value-of select="price" />
    </span>
    <b>
      <xsl:value-of select="$numprice -2" />$
    </b>
  </h4>
</xsl:if>

<xsl:variable name="numprice" select="number(substring(price,1,string-length(price)-1))" />
<xsl:choose>
  <xsl:when test="$numprice>=10">
    <h4 >
      <span style='text-decoration:line-through;color:red'>
        <xsl:value-of select="price" />
      </span>
      <b>
        <xsl:value-of select="$numprice -2" />$
      </b>
    </h4>
  </xsl:when>

  <xsl:otherwise>
    <b>
      <xsl:value-of select="$numprice" />$
    </b>
  </xsl:otherwise>
</xsl:choose>

<xsl:for-each select="Albums/Album[contains(Genres/Genre, 'POP')]">

<xsl:for-each select="Albums/Album[not(contains(Genres/Genre, 'POP'))]">

<xsl:for-each select="Genres/Genre">
<xsl:value-of select="."/>
<xsl:if test="position() != last()">
,
</xsl:if>
</xsl:for-each>

string xmlfile = Application.StartupPath + "\\sampleXML.xml";

//بارگذاری فایل قوانین در حافظه
XslTransform xslt = new XslTransform();
xslt.Load("sample-stylesheet.xsl");

//XPath ایجاد یک سند جدید بر اساس استاندارد 
XPathDocument xpath = new XPathDocument(xmlfile);

//آماده سازی برای نوشتن فایل نهایی
XmlTextWriter xwriter = new XmlTextWriter(xmlfile + ".html", Encoding.UTF8);

//نوشتن فایل مقصد بر اساس قوانین مشخص شده
xslt.Transform(xpath, null, xwriter, null);
xwriter.Close();

XsltArgumentList xslArgs = new XsltArgumentList();
xslArgs.AddParam("logo", "", logo);
xslArgs.AddParam("name", "", name); 
....
xslt.Transform(xpath, xslArgs, xwriter, null);