PUBLIC MARKS from camel with tag xmlhttprequest

FileTreePanel is client-server application where client (browser) provides the user interface (UI) which displays the tree and context menu, handles drag & drop operations, etc. The filesystem that is displayed and managed by the UI is stored on a server. Therefore, we need some communication layer between client and server. Client sends a command to server, server processes this command and responds with a result. Client in turn processes the response and display results. All this communication is running in the background by Ajax (XMLHttpRequest) calls. The XMLHttpRequest is not used directly but the Ext JS - JavaScript Library ajax layer is used for this purpose. Client requests data from server with standard POST method and server is expected to respond with JSON (JavaScript Object Notation) string and appropriate HTTP headers.

tutorial xmlhttprequest

This is an in-progress collection of AJAX patterns

AjaxPatterns

Code snippets and proof of concepts - the links below shoul help get you started on building your own functions wit XMLHttpRequest

This article was originally written in April 2002, I've decided to fix and update it as the objects finally seem to be getting some popularity. The 2002 version is still available. This version December 2004, there's also a September 2004 version.

Sajax is an open source tool to make programming websites using the Ajax framework — also known as XMLHTTPRequest or remote scripting — as easy as possible. Sajax makes it easy to call PHP, Perl or Python functions from your webpages via JavaScript without performing a browser refresh. The toolkit does 99% of the work for you so you have no excuse to not use it.

le Asynchronous JavaScript + XML qui sert à des applications Web tel que GoogleMaps, nous est très bien expliqué dans cet essai de Jesse James Garrett.