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Globalization Supportin

Microsoft .NET Framework

Franois Liger

Program Manager

Microsoft Corporation


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What is .NET Framework?

.NET is Microsoft's platform for building,deploying, operating and integrating XML Webservices.

Rich XML, standard protocols, stateless

Cross-language development Common language runtime

Common type system for all languages

Rich runtime environment

Rich class libraries (.NET Framework) Base class libraries, ADO.NET and XML

Windows Forms for rich, Win32 applications

Web application platform ASP.NET

Easier to deploy, run, & maintain applications For components, versioning, availability


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Key Terms (as used in this talk)

Globalization (a.k.a. Internationalization) Core application handles international data

Character encodings Date and time, numeric, currency formats

Market adaptation Additional functionality for a given market

Localization = translation

Localizable = ready for translation Resources

Application elements (error messages, UI) to betranslated in localized versions


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Why include international support in

the Framework ? Consistency

.NET Framework is Unicode internally

.NET Framework carries NLS+ classes, sortingtables Consistent results on Windows XP, Windows

2000, Windows NT 4, Windows Millennium,Windows 98

Note: there are a few limitations on down-levelUnicode support: Underlying operating system limitations Windows Code pages File I/O


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System

System.Data System.Xml

System.Web

Globalization

Diagnostics

Configuration

Collections

Resources

Reflection

Net

IO

Threading

Text

ServiceProcess

Security

Design

ADO

SQLTypes

SQL

XPath

XSLT

RuntimeInteropServices

Remoting

Serialization

Serialization

Configuration SessionState

Caching Security

ServicesDescription

Discovery

Protocols

UIHtmlControls

WebControls

System.Drawing

Imaging

Drawing2D

Text

Printing

System.WinForms

Design ComponentModel

.NET Framework Namespace


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System.Globalization Namespace

Includes classes for functionality such as: Culture-aware string comparison

AABC vs. ABCC (ordinal: codepoint values) Cot vs. Cte (culture dependent)

Date &Time formatting yy/mm/dd vs. dd/mm/yy

Numeric formatting 12,000.00 vs. 12.000,00

Calendars Gregorian and non-Gregorian

Starting point : the CultureInfo class


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CultureInfo

Provider of cultural preferences

Two roles CurrentCulture

Date and number formatting String comparison and casing

CurrentUICulture Resource selection for user interface

Can be controlled on a per thread basis

RFC 1766 derived hierarchy

CultureInfo.CreateSpecificCulture Optional mapping from neutral to specific


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CultureInfo

Cultural preferences provider

Invariant culture culture-invariant default

Neutral culture Based on language

Resource only

No formatting

CurrentUICulture only

Specific culture Based on language & region

Resource & Formatting specifics

CurrentCulture & CurrentUICulture

invariant

de

de-AT

de-CH

de-DE

de-LI

de-LU

en


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CultureInfo and related classes Demo


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How to Set Culture and UICulture

Implicitly CurrentUICulture

Picked up from GetUserDefaultUILanguage

On Windows XP and Windows 2000 MUI SKUs, thissetting can be set by end-user

Otherwise, set from OS resources language

CurrentCulture Picked up from GetUserDefaultLCID

Affected by changes to

Control Panel | Regional Options | Set Locale


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How to Set CurrentCulture, CurrentUICulture

Explicitly Thread.CurrentThread.CurrentUICulture = new CultureInfo(ja)

Thread.CurrentThread.CurrentCulture = new CultureInfo(ja-JP)

Thread.CurrentThread.CurrentCulture =

CultureInfo.CreateSpecificCulture(Request.UserLanguages(0))

Within an individual API that takes a culture Str = DateTime.Now.ToString(cultureInfo);


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What if I dont want formatting to

change by culture?

For UI, prefer culture-sensitive formatting

However, for wire-transfer, databasestorage, you may want stable, culture-

unrelated format, such as #,###.##

dd MMMM yyyy HH:mm:ss GMT

international currency symbol

Use CultureInfo.InvariantCulture


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Culture-aware Classes

Any API which takes a culture, or anIFormatProvider

Culture-sensitive by default

Examples System.Globalization.CompareInfo

System.Globalization.StringInfo

System.G

lobalization.Calendar System.Resources

System.DateTime

System.String


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Calendar classes Includes support for

Gregorian Calendar

Hebrew Calendar Hijiri Calendar

Japanese Calendar

Julian Calendar

Korean Calendar

Taiwan Calendar

Thai Buddhist Calendar

Base Calendar class from which customcalendars can be derived


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DateTime Provides methods that enable culture-sensitive

operations on a DateTime.

Use the DateTimeFormatInfo Class to formatand display a DateTime based on culture.

DateTimeFormatInfo Defines how DateTime values are formatted

and displayed, depending on the culture.


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NumberFormatInfo Defines how currency, decimal separator and

other numeric symbols are formatted and

displayed based on culture


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CompareInfo Provides a set of methods that can be used to

perfomr culture-sensitive string comparisons

The CultureInfo class has a CompareInfoproperty that is an instance of theCompareInfo class

The String.Compare method uses the

information in the CultureInfo.CompareInfoproperty to compare strings


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Unicode support

Unicode everywhere Unicode internally

UTF-8 and UTF-16 encoding classes

String operations Surrogates & Combining characters support

Character type information Based on Unicode 3.0 tables

Unicode category enumeration

CultureInfo data Caveats

OS dependent operations Controls support

File System


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ASP.NET And International ASP.NET delivers improved support for

international application development: Can leverage .NET Framework base classes

System.Globalization

System.Text (encodings)

System.Resources

Can separate resources from source code

Unicode-enabled

More options for specifying encoding


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ASP.NET

setting culture and encoding:

ProgrammaticallyThread.CurrentThread.CurrentCulture =.

In a Page directive

In a Configuration file (web.config)Per application or per machine

The most specific setting has precedence : Programmatic overrides Page Directive,

Page Directive overrides Configuration file


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ASP.NET Demo


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Additional References

Documentation .NET Framework SDK:

Developing World-Ready Applications Tutorials

Samples Visual Studio :

Visual Studio.NET\Visual Basic and VisualC#\Globalizingand Localizing\Walkthroughs

General info on .NET Framework: http://msdn.microsoft.com/net http://www.GotDotNet.com

General info on globalization: http://www.microsoft.com/globaldev


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Questions ?

Documents

20 DotNetFr Globaliz c