Articles tagged

10 June 2015
10 June 2015

Tracking Online Users

23
Sometimes, the requirements for a web application include a list of users that are currently logged-in. It would seem, at first glance, to be pretty trivial, but because few of us explicitly log out of web applications, the reality can get complicated. Even the best solution is a trade-off. Dino explains the issues and alternatives.… Read more
19 May 2010
19 May 2010

AJAX basics with jQuery in ASP.NET

155
ASP.NET now has support for the jQuery JavaScript library. Although ASP.NET integrated AJAX technology by introducing the is the UpdatePanel server control, jQuery offers an alternative, and more versatile, way of doing it and a great deal more besides. Matteo shows how easy it is to get started with using jQuery.… Read more
01 May 2007
01 May 2007

Enhance your Website with ASP.NET AJAX Extensions

262
Microsoft's ASP.NET AJAX Extensions provide developers with a quick and simple way to add AJAX functionality into any ASP.NET Website. In this article, Dan Wahlin demonstrates how to use the UpdatePanel control, which performs asynchronous postback operations that update a portion of a page rather than the entire page itself. … Read more
29 December 2006
29 December 2006

Calling Cross Domain Web Services in AJAX

241
The latest craze for mashups involves making cross-domain calls to Web Services from APIs made publicly available by companies such as Google, Flickr and so on. Unfortunately, the XMLHttpRequest object doesn't allow calls made in one domain to a web service in another. The article surveys the current, somewhat unsatisfactory, solutions and then assesses future directions. … Read more