Developing Internationalized .NET Apps

ASP.NET applications can use the same classes as other managed applications for retrieving, displaying and manipulating information based on the culture.

Specify the following values – requestEncoding , responseEncoding, fileEncoding, culture and uiCulture attributes in the following 3 places in ASP.NET application as mentioned below

Globalization section of web.config file. This file is external to the ASP.NET application

Page Directive. Note that when the application is in a page, the file has already been read. It does not make any sense in specifying the fileEncoding and requestEncoding. Only uiCulture, Culture and responseEncoding can be specified in a page directive

Programmatically in application code. This setting can vary per request. As with a page directive, by the time the application's code is reached it is too late to specify fileEncoding and requestEncoding. Only uiCulture, Culture, and responseEncoding can be specified in application code.