How to Create Multilingual Webpart in SharePoint 2010 (C# 方式)

What is Localization/Multilingual and Globalization?
The term "Localization" defined as "Process of translating resources for a specific culture/languages", where "Globalization" defined "Process of designing applications that can adapt to different cultures/languages". When we publish a site for different regions then it'll be great if the site content is displayed in that regional language. SharePoint provides Language Packs which can be downloaded and installed from Microsoft Site. but the limitation in this is only the SharePoint site labels/text will be displayed in selected language and the user defined contents won't be translated by SharePoint.

How to enable Localization in SharePoint 2010?
Assume we develop a webpart that has a registration form. A user from German wish to register and he needs the form in German/Dutch language. Even though Dutch language pack installed and enabled in SharePoint, the webpart text won't be translated/displayed in German. So how to make webpart that can adapt different languages. For those working in .Net platform knows it can be done with Resource files (.resx). Resource files are nothing but Key/Value Pair defined XML format files.

Here the steps to create a Webpart that detects the selected language in SharePoint and display contents that fetched from Resource Files.

1. Open Visual Studio 2010 -> File -> New -> Project  
2. Select [Template] Visual C# -> SharePoint -> 2010 [Framework] .Net Framework 3.5 [Project] -> Empty SharePoint 2010 Project. Name of the Project : vsProject

3. In the SharePoint Customization Wizard, enter the URL of the local site (http://vsnet/) and select Deploy as a farm solution.

 

4. Create Resource Files
   1. Resource files should be present in SharePoint Root "Resources" folder. In Solution Explorer select project "vsProject", right click and select Add -> SharePoint Mapped Folder. 

      

   2. In the Window select "Resources" Folder. 

      

   3. Now an empty "Resources" folder is created inside SharePoint project. Any files placed inside this folder will be copied to SharePoint Root (14)\Resources Folder while deploying.
   4. Right click on Resources folder and select Add -> New Folder -> vsProject [Folder Name]. Always create folder and place files. This will avoid the files getting deleted when any SharePoint service pack installed.
   5. Right click on Newly created folder [vsProject] and select New -> New Item.
   6. In the New Item window select [Template] Visual C# -> General -> Resources File -> Name the files as "vsProject.resx". This is for default language which in English (LCID : 1033).

      

   7. Select vsProject.resx file, right click and Open.
   8. Add Name and Value pairs as required.

      

   9. Repeat Step "f." and provide name "vsProject.de-DE.resx". This file is for Dutch language. Refer the end of the article to get full list.

      

   10. Open "vsProject.de-DE.resx" and enter the same Name as in vsProject.resx and provide value in German Language. Here "Comment" Field is optional.

       

5. Create Webpart
   The Resource file is ready to use and now need to create Web part that get value from those resource files.
   1. Right Click on the Project "vsProject" and "Add -> New Item"
   2. Select "Visual C# -> SharePoint -> 2010 -> Web Part". Name : "LocalizationDemo".

      

   3. Copy paste the below code inside LocalizationDemo class or just refer it.
      

      protected override void CreateChildControls()
      {
        int intLCID = System.Threading.Thread.CurrentThread.CurrentUICulture.LCID;
        Label lblWelcomeText = new Label();
        lblWelcomeText.Text = "Value : " + getLocalizedValue("WelcomeText", intLCID);
        this.Controls.Add(lblWelcomeText);
      }
      
      public string getLocalizedValue(string strInput, int intLCID)
      {
        // Function to retreive specified Language Variation Value
        string strLocalizedValue = "";
      
        strLocalizedValue = Microsoft.SharePoint.Utilities.SPUtility.GetLocalizedString("$Resources: " + strInput, "vsProject\\vsProject", (uint)intLCID);
      
        return strLocalizedValue;
      }

   4. Save all files, Build and Deploy. The solution will be deployed in SharePoint and ready to use.
   5. Open the SharePoint site any page and click "Edit" Icon on top (or Site Actions -> Edit page).
   6. Select "Editing Tools [Tab] -> Insert [Tab] -> Web Part -> Custom [Categories] -> LocalizationDemo -> Add [Button]".

      

   7. Once the webpart added to the page select "Save and close" Icon.
6. Now it'll show the content in default language (English - 1033). Select "User Menu" at top right and select "Select Display Language -> Deutsch".
7. The page will be refreshed the Web Part will show the German Content which specified in the resource file. 

   

 Reference List - Locale ID (LCID) and Language

HTTP	LCID	Language
	1033	Default
af	1078	Afrikaans
sq	1052	Albanian
ar-sa	1025	Arabic(Saudi Arabia)
ar-iq	2049	Arabic(Iraq)
ar-eg	3073	Arabic(Egypt)
ar-ly	4097	Arabic(Libya)
ar-dz	5121	Arabic(Algeria)
ar-ma	6145	Arabic(Morocco)
ar-tn	7169	Arabic(Tunisia)
ar-om	8193	Arabic(Oman)
ar-ye	9217	Arabic(Yemen)
ar-sy	10241	Arabic(Syria)
ar-jo	11265	Arabic(Jordan)
ar-lb	12289	Arabic(Lebanon)
ar-kw	13313	Arabic(Kuwait)
ar-ae	14337	Arabic(U.A.E.)
ar-bh	15361	Arabic(Bahrain)
ar-qa	16385	Arabic(Qatar)
eu	1069	Basque
bg	1026	Bulgarian
be	1059	Belarusian
ca	1027	Catalan
zh-tw	1028	Chinese(Taiwan)
zh-cn	2052	Chinese(PRC)
zh-hk	3076	Chinese(Hong Kong)
zh-sg	4100	Chinese(Singapore)
hr	1050	Croatian
cs	1029	Czech
da	1030	Danish
n	1043	Dutch(Standard)
nl-be	2067	Dutch(Belgian)
en	9	English
en-us	1033	English(United States)
en-gb	2057	English(British)
en-au	3081	English(Australian)
en-ca	4105	English(Canadian)
en-nz	5129	English(New Zealand)
en-ie	6153	English(Ireland)
en-za	7177	English(South Africa)
en-jm	8201	English(Jamaica)
en	9225	English(Caribbean)
en-bz	10249	English(Belize)
en-tt	11273	English(Trinidad)
et	1061	Estonian
fo	1080	Faeroese
fa	1065	Farsi
fi	1035	Finnish
fr	1036	French(Standard)
fr-be	2060	French(Belgian)
fr-ca	3084	French(Canadian)
fr-ch	4108	French(Swiss)
fr-lu	5132	French(Luxembourg)
mk	1071	FYRO Macedonian
gd	1084	Gaelic(Scots)
gd-ie	2108	Gaelic(Irish)
de	1031	German(Standard)
de-ch	2055	German(Swiss)
de-at	3079	German(Austrian)
de-lu	4103	German(Luxembourg)
de-li	5127	German(Liechtenstein)
e	1032	Greek
he	1037	Hebrew
hi	1081	Hindi
hu	1038	Hungarian
is	1039	Icelandic
in	1057	Indonesian
it	1040	Italian(Standard)
it-ch	2064	Italian(Swiss)
ja	1041	Japanese
ko	1042	Korean
ko	2066	Korean(Johab)
lv	1062	Latvian
lt	1063	Lithuanian
ms	1086	Malaysian
mt	1082	Maltese
no	1044	Norwegian(Bokmal)
no	2068	Norwegian(Nynorsk)
p	1045	Polish
pt-br	1046	Portuguese(Brazil)
pt	2070	Portuguese(Portugal)
rm	1047	Rhaeto-Romanic
ro	1048	Romanian
ro-mo	2072	Romanian(Moldavia)
ru	1049	Russian
ru-mo	2073	Russian(Moldavia)
sz	1083	Sami(Lappish)
sr	3098	Serbian(Cyrillic)
sr	2074	Serbian(Latin)
sk	1051	Slovak
s	1060	Slovenian
sb	1070	Sorbian
es	1034	Spanish(Spain - Traditional Sort)
es-mx	2058	Spanish(Mexican)
es	3082	Spanish(Spain - Modern Sort)
es-gt	4106	Spanish(Guatemala)
es-cr	5130	Spanish(Costa Rica)
es-pa	6154	Spanish(Panama)
es-do	7178	Spanish(Dominican Republic)
es-ve	8202	Spanish(Venezuela)
es-co	9226	Spanish(Colombia)
es-pe	10250	Spanish(Peru)
es-ar	11274	Spanish(Argentina)
es-ec	12298	Spanish(Ecuador)
es-c	13322	Spanish(Chile)
es-uy	14346	Spanish(Uruguay)
es-py	15370	Spanish(Paraguay)
es-bo	16394	Spanish(Bolivia)
es-sv	17418	Spanish(El Salvador)
es-hn	18442	Spanish(Honduras)
es-ni	19466	Spanish(Nicaragua)
es-pr	20490	Spanish(Puerto Rico)
sx	1072	Sutu
sv	1053	Swedish
sv-fi	2077	Swedish(Finland)
th	1054	Thai
ts	1073	Tsonga
tn	1074	Tswana
tr	1055	Turkish
uk	1058	Ukrainian
ur	1056	Urdu
ve	1075	Venda
vi	1066	Vietnamese
xh	1076	Xhosa
ji	1085	Yiddish
zu	1077	Zulu