internationalization - Create custom culture in ASP.NET

Question

I want to create a resource file for Singaporean English (en-sg) named "shopping.en-sg.resx" in App_GlobalResources folder.

I get error during compilation.

Error 1 The namespace 'Resources' already contains a definition for 'shopping' c:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Filesweb2cd6afe9737b0a13App_GlobalResources.vomuzavz.1.cs 26

After searching Google, I discover that "en-sg" is not a default culture and I have to create custom culture for it. I don't know the detailed steps of this.

What should I do to create the culture and remove the compilation error?

I follow the example in MSDN, create a file called "shopping.x-en-US-sample.resx" and put the following code into BasePage's function (protected override void InitializeCulture()):

CultureAndRegionInfoBuilder cib = null;

cib = new CultureAndRegionInfoBuilder(
  "x-en-US-sample", CultureAndRegionModifiers.None);

CultureInfo ci = new CultureInfo("en-US");
cib.LoadDataFromCultureInfo(ci);
RegionInfo ri = new RegionInfo("US");
cib.LoadDataFromRegionInfo(ri);

cib.Register();

ci = new CultureInfo("x-en-US-sample");

However, compilation error is still exist.

UPDATED:

You can easily reproduce the problem by creating an empty website and two files "shopping.en-sg.resx" and "shopping.resx" in the app_globalresources folder.

Answer 1

You can create a new culture based on an existing culture:

string culture = "en-sg";
string name = "Singaporean English";

CultureInfo cultureInfo = new CultureInfo("en-GB");
RegionInfo regionInfo = new RegionInfo(cultureInfo.Name);

CultureAndRegionInfoBuilder cultureAndRegionInfoBuilder = new CultureAndRegionInfoBuilder(culture, CultureAndRegionModifiers.None);

cultureAndRegionInfoBuilder.LoadDataFromCultureInfo(cultureInfo);
cultureAndRegionInfoBuilder.LoadDataFromRegionInfo(regionInfo);

// Custom Changes
cultureAndRegionInfoBuilder.CultureEnglishName = name;
cultureAndRegionInfoBuilder.CultureNativeName = name;

cultureAndRegionInfoBuilder.Register();

Added: Just checked the references: I have :

using System;
using System.Collections.Generic;
using System.Text;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Runtime.CompilerServices;

Added (updated, based on comments):

With regards the error message:

The error you're seeing is the result of some resource naming conflict. Check the resource names, these get compiled into dlls to you need to check that the namespace names dont conflict. You can check this using the reflector tool: http://www.red-gate.com/products/reflector/