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Understanding Internationalization in ASP.NET MVC

Understanding Internationalization in ASP.NET MVC

01 Apr 2024
Intermediate
63K Views
7 min read

Internationalization: An Overview

Internationalization is abbreviated to i18n, where 18 stands for the number of letters in the word Internationalization between the first i and last n. Internationalization is the process of developing products/software in such a way that they can be localized for languages and cultures easily. It involves Globalization and Localization. In this MVC Tutorial, we will explore more about Internationalization which will include localization and globalization in asp.net mvc, localization of validation messages, and multi-language websites in asp.net mvc. Consider our ASP.NET MVC Course for a better understanding of all MVC core concepts.

What is Globalization and Localization in Asp.net MVC?

1. Globalization

Globalization is abbreviated to G11n, where 11 stands for the number of letters in the word Globalization between the first G and last n. It is the process of developing products/software in such a way that they can support different cultures.

2. Localization

Localization is abbreviated to L10n, where 10 stands for the number of letters in the word Localization between the first L and last n. It is the process of developing products/software in such a way that they can be customized for a specific culture.

Culture in ASP.NET Framework

  • ASP.NET framework has two cultures - Culture and UICulture. Typically, these cultures' values are composed of two lower-case letters defining the language and two upper-case letters defining the locale (region).
  • For example, "en" represents the English language, and "GB", and "US" represent Britain and America respectively. In this way, British English is defined as "en-GB", while American English is defined as "en-US".
  • The Culture determines the results of culture-dependent functions such as date, number, and currency.
  • The UICulture is used to locate the correct resource file and to render it for a webpage by the ResourceManager.
  • Every thread in .NET has CurrentCulture and CurrentUICulture properties. These properties are used by the ASP.NET globalization framework while rendering culture-dependent functions and values.

Internationalization of Validation Messages

We will also see in thisHow to create multi-language websites in asp.net MVC.To make validation messages in different languages, you need to add translated messages with a key for every culture, which your application will support. In this article, I am going to add translated messages in English and Hindi. Here, the default culture is "en".

Internationalization of Validation Messages

In this example, We are storing resource files for English and Hindi culture in a separate assembly, so that you can add references to that assembly in another project as well.

Using Resources within the ViewModel class

public class UserViewModel
{
 [Display(Name = "Username", ResourceType = typeof(ViewResources.Resource))]
 [Required(ErrorMessageResourceName = "UsernameRequired", ErrorMessageResourceType = typeof(ViewResources.Resource))]
 public string Username { get; set; }

 [Display(Name = "Name", ResourceType = typeof(ViewResources.Resource))]
 [Required(ErrorMessageResourceName = "NameRequired", ErrorMessageResourceType = typeof(ViewResources.Resource))]
 public string Name { get; set; }

 [Display(Name = "Password", ResourceType = typeof(ViewResources.Resource))]
 [Required(ErrorMessageResourceName = "PasswordRequired", ErrorMessageResourceType = typeof(ViewResources.Resource))]
 public string Password { get; set; }

 [Display(Name = "ConfirmPassword", ResourceType = typeof(ViewResources.Resource))]
 [Required(ErrorMessageResourceName = "ConfirmPasswordRequired", ErrorMessageResourceType = typeof(ViewResources.Resource))]
 [Compare("Password", ErrorMessageResourceName = "ConfirmPasswordCompare", ErrorMessageResourceType = typeof(ViewResources.Resource))]
 public string ConfirmPassword { get; set; }

 [Display(Name = "Address", ResourceType = typeof(ViewResources.Resource))]
 [Required(ErrorMessageResourceName = "AddressRequired", ErrorMessageResourceType = typeof(ViewResources.Resource))]
 public string Address { get; set; }
}

Using Resources within View

@model MVC_Internationalization.Models.UserViewModel

@{
 ViewBag.Title = ViewResources.Resource.Title;
}
<div class="row">
 <div class="col-md-8">
 <h2>@ViewResources.Resource.Title</h2>
 </div>
 <div class="col-md-4">
 @using (Html.BeginForm("ChangeCulture", "Home"))
 {
 <p>
 @ViewResources.Resource.SelectLanguage : @Html.DropDownList("ddlCulture", new SelectList(new[]
 {
 new{value="en",text=ViewResources.Resource.English},
 new{value="hi",text=ViewResources.Resource.Hindi}
 }, "value", "text", Session["CurrentCulture"]), new { onchange = "this.form.submit();" })
 </p>
 }
 </div>
</div>
<br />
@using (Html.BeginForm("Index", "Home"))
{
 @Html.AntiForgeryToken()

 <div class="form-horizontal">

 @Html.ValidationSummary(true, "", new { @class = "text-danger" })
 <div class="form-group">
 @Html.LabelFor(model => model.Username, htmlAttributes: new { @class = "control-label col-md-2" })
 <div class="col-md-10">
 @Html.EditorFor(model => model.Username, new { htmlAttributes = new { @class = "form-control" } })
 @Html.ValidationMessageFor(model => model.Username, "", new { @class = "text-danger" })
 </div>
 </div>

 <div class="form-group">
 @Html.LabelFor(model => model.Name, htmlAttributes: new { @class = "control-label col-md-2" })
 <div class="col-md-10">
 @Html.EditorFor(model => model.Name, new { htmlAttributes = new { @class = "form-control" } })
 @Html.ValidationMessageFor(model => model.Name, "", new { @class = "text-danger" })
 </div>
 </div>

 <div class="form-group">
 @Html.LabelFor(model => model.Password, htmlAttributes: new { @class = "control-label col-md-2" })
 <div class="col-md-10">
 @Html.PasswordFor(model => model.Password, new { @class = "form-control" })
 @Html.ValidationMessageFor(model => model.Password, "", new { @class = "text-danger" })
 </div>
 </div>

 <div class="form-group">
 @Html.LabelFor(model => model.ConfirmPassword, htmlAttributes: new { @class = "control-label col-md-2" })
 <div class="col-md-10">
 @Html.PasswordFor(model => model.ConfirmPassword, new { @class = "form-control" })
 @Html.ValidationMessageFor(model => model.ConfirmPassword, "", new { @class = "text-danger" })
 </div>
 </div>

 <div class="form-group">
 @Html.LabelFor(model => model.Address, htmlAttributes: new { @class = "control-label col-md-2" })
 <div class="col-md-10">
 @Html.TextAreaFor(model => model.Address, new { @class = "form-control" })
 @Html.ValidationMessageFor(model => model.Address, "", new { @class = "text-danger" })
 </div>
 </div>

 <div class="form-group">
 <div class="col-md-offset-2 col-md-10">
 <input type="submit" value="@ViewResources.Resource.Save" class="btn btn-default" />
 </div>
 </div>
 </div>
}

Setting Culture within Controller

public class HomeController : Controller
{
 //initilizing culture on controller initialization
 protected override void Initialize(System.Web.Routing.RequestContext requestContext)
 {
 base.Initialize(requestContext);
 if (Session["CurrentCulture"] != null)
 {
 Thread.CurrentThread.CurrentCulture = new CultureInfo(Session["CurrentCulture"].ToString());
 Thread.CurrentThread.CurrentUICulture = new CultureInfo(Session["CurrentCulture"].ToString());
 }
 }

 // changing culture
 public ActionResult ChangeCulture(string ddlCulture)
 {
 Thread.CurrentThread.CurrentCulture = new CultureInfo(ddlCulture);
 Thread.CurrentThread.CurrentUICulture = new CultureInfo(ddlCulture);

 Session["CurrentCulture"] = ddlCulture;
 return View("Index");
 }

 public ActionResult Index()
 {
 return View();
 }

 [HttpPost]
 public ActionResult Index(UserViewModel user)
 {
 if (ModelState.IsValid)
 {
 //TO DO:
 }
 return View();
 }
}

How it works...

Conclusion

So in this article, we have learned about localization and globalization in asp.net mvc, and localization of validation messages. I hope you enjoyed learning these concepts while programming with Asp.Net. Feel free to ask any questions from your side. Your valuable feedback or comments about this article are always welcome. Level up your career in MVC with our ASP.Net Core Certification.

FAQs

Q1. What is localization and globalization in ASP.NET MVC?

Globalization is the process of designing and developing applications that function for multiple cultures. Localization is the process of customizing your application for a given culture.

Q2. What is internationalization in ASP.NET Core?

It is the process of developing products/software in such a way that they can be localized for languages and cultures easily.

Q3. What are the three types of localization?

There are three main types of language localization services: translation, transcription, and interpreting
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About Author
Shailendra Chauhan (Microsoft MVP, Founder & CEO at Scholarhat by DotNetTricks)

Shailendra Chauhan is the Founder and CEO at ScholarHat by DotNetTricks which is a brand when it comes to e-Learning. He provides training and consultation over an array of technologies like Cloud, .NET, Angular, React, Node, Microservices, Containers and Mobile Apps development. He has been awarded Microsoft MVP 8th time in a row (2016-2023). He has changed many lives with his writings and unique training programs. He has a number of most sought-after books to his name which has helped job aspirants in cracking tough interviews with ease.
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