Recently, Microsoft released their ASP.NET AJAX Framework which allows developers to build AJAX applications more easily. ASP.NET AJAX consists of two pieces.
1.) Microsoft AJAX Library - contains a set of script files that provide common functions and an OO programming framework
2.) ASP.NET 2.0 AJAX Extensions - includes a set of server controls that allows developers to add AJAX functionality by dragging and dropping controls onto a page
The following are brief descriptions of the javascript extensions made available by the AJAX Client Library by Namespace. Global Namespace - contains members and types that extend base JavaScript objects.
Array Extensions (add, addRange, clear, clone, contains, dequeue, enqueue, forEach, indexOf, insert, pars, remove, removeAt)
Boolean Extension (parse - converts a string into a Boolean)
Date Extension (format, localeFormat, parseInvariant, parseLocale)
var today = new Date();
alert (today.format('D'));d - Short date pattern (05/10/07)
D - Long date pattern (Thursday, 10 May 2007)
t - Short time pattern (18:05)
T - Long time pattern (18:05:12)
F- Full date pattern (Thursday, 10 May 2007 18:05:12)
M - Month and date pattern (May 10)
s - Sortable date and time pattern (2007-05-10T18:05:12)
Y - Year and month pattern (2007 May)
Error Extensions (argument, argumentNull, argumentOutOfRange, argumentType, argumentUndefined, create, invalidOperation, notImplemented, parameterCount, popStackFrame)
Number Extension (format, localeFormat, parseInvariant, parseLocale) p - number is converted to a string that represents a percent
d - converted to a string of decimal digits
c - converted to a string that represents a currency
n - converted to a string of the form "-d,ddd,dd"var num = Number.parseInvariant("130.33");
alert (num.localeFormat("c")); // $130.33 Object Extensions (getType, getTypeName)
getType - returns the type of specified object
getTypeName - returns the type name of an object
String Extension (endsWith, format, localeFormat, startsWith, trim, trimEnd, trimStart)Sys Namespace
Sys - root namespace containing some base classes such as Sys.CultureInfo
Application - objects/methods that expose client events and manage client components
ApplicationLoadEventArgs - container object for arguments of the Application Load event
CancelEventArgs - base class for events that can be canceled
Component - base class for all asp.net ajax objects including Control class and Behavior class
CultureInfo - object that can be used to provide locale specific functionality
Debug code - debugging and tracing functionality
EventArgs - used for storing event arguments
EventHandlerList - collection of client events for a component containing event names and handlers
PropertyChangedEventArgs - contains event arguments associated with changed properties
StringBuilder - facilitates more efficient string concatenation
Sys.Net - provides networking and communication support
Sys.UI - contains set of classes for UI support
Sys.Services - support for asp.net application services such as login/authentication
Sys.Serialization - provides support for data serialization/Json
Sys.WebForms - contains classes for async page loading
| Shortcut | Description |
| $addHandler | Shortcut to Sys.UI.DomEvent.addHandler method |
| $addHandlers | Shortcut to Sys.UI.DomEvent.addHandlers method |
| $clearHandlers | Shortcut to Sys.UI.DomEvent.clearHandlers method |
| $create | Shortcut to Sys.Component.create method |
| $find | Shortcut to Sys.Application.findComponent method |
| $get | Shortcut to Sys.UI.DomElement.getElementId method |
| $removeHandler | Shortcut to System.UI.DomEvent.removeHandler method |