MSDN Magazine - January 2008 - (Page 71)

The variable is read in, parsed, assigned to a Sys.CultureInfo.CurrentCulture variable, and then released. A few lines up from this in MicrosoftAjax.js you can see the definition of the InvariantCulture: Sys.CultureInfo.InvariantCulture = Sys.CultureInfo._parse(‘{“name”:””, ”numberFormat”: {“CurrencyDecimalDigits”:2,”CurrencyDecimalSeparator”:”.”, ”IsReadOnly”:true,”CurrencyGroupSizes”:[3],”NumberGroupSizes”:[3], ”PercentGroupSizes”:[3],”CurrencyGroupSeparator”:”,”, “CurrencySymbol”:”\u00A4”,”NaNSymbol”:”NaN”, “CurrencyNegativePattern”:0,”NumberNegativePattern”:1, “PercentPositivePattern”:0,”PercentNegativePattern”:0, “NegativeInfinitySymbol”:”-Infinity”,”NegativeSign”:” aware that it does not have the method called localeFormat that is used in the showToday function. This is one of the type extensions included in the ASP.NET AJAX framework. You can see the code for these in MicrosoftAjax.Debug.js. Here is the localeFormat method for the Date class: Date.prototype.localeFormat = function Date$localeFormat(format) { /// /// var e = Function._validateParams(arguments, [ {name: “format”, type: String} ]); if (e) throw e; return this._toFormattedString(format, Sys.CultureInfo.CurrentCulture); } What is missing is a value for CurrentUICulture. You could either assume that it is the same as the CurrentCulture (a rather dubious assumption), or you could manufacture a solution that is similar to that of the CurrentCulture and inject a suitable variable into the generated HTML sent to the client. So let’s see what we can do with our globalization support. Create an AJAX-Enabled Web Application and set EnableScriptGlobalization to true in the ScriptManager. Add a Label and a Button and add an OnClientClick event to return a call to the showToday JavaScript function: For a full list of these type extensions, see ajax.asp.net/docs/ClientReference/Global/JavascriptTypeExtensions/default.aspx. So, through the Sys.CultureInfo class, the Sys.CultureInfo.InvariantCulture, and Sys.CultureInfo.CurrentCulture properties and type extensions, the ASP.NET AJAX framework The .NET Framework has a offers a limited globalizavast ocean of globalization tion framework. La Fin Add Culture and UICulture attributes to the page and assign them values of “auto”. Run the application with the browser’s language set to English or nothing, click on the button, and the date will display in the default format for the culture set in your Regional and Language Options dialog. Change the browser’s language to “fr”, refresh the page, click on the button, and the Label will show the date in French using the French date format (lundi 2 juillet 2007, for instance). If you are familiar with the JavaScript Date class, you will be The ASP.NET AJAX framework brings localization and globalization support to JavaScript on a level not previously seen outside of custom implementations. The framework offers a choice of two localization models, and one of them is likely to meet your needs. The globalization support is rudimentary compared to the richness of the .NET Framework, but that doesn’t mean you can’t get creative and add your own type extensions and JavaScript classes to support specific needs. I would imagine that AJAX will continue to see upgrades, as all technologies do, so expect to see enhancements to this model in future releases of ASP.NET AJAX. ■ classes, and the support in JavaScript could fit into a puddle. And there’s a bit of a dilemma surrounding adding more. AJAX World Ready january2008 71 http://ajax.asp.net/docs/ClientReference/Global/JavascriptTypeExtensions/default.aspx http://ajax.asp.net/docs/ClientReference/Global/JavascriptTypeExtensions/default.aspx

Table of Contents Feed for the Digital Edition of MSDN Magazine - January 2008

MSDN Magazine - January 2008 Contents Toolbox CLR Inside Out Data Points Advanced Basics Cutting Edge IIS 7.0 - Enhance Your Apps with the Integrated ASP.NET Pipeline World Ready - Around the World with ASP.NET AJAX Applications WCF Syndication - HTTP Programming with WCF and the .NET Framework 3.5 Wicked Code Foundations Extreme ASP.NET {End Bracket}

MSDN Magazine - January 2008

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