Learn XML AJAX

AJAX is a developer’s dream, because you can:

Update a web page without reloading the page
Request data from a server – after the page has loaded
Receive data from a server – after the page has loaded
Send data to a server – in the background

Curriculum

10 Sections
19 Lessons
10 Weeks

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AJAX Introduction
AJAX is a developer's dream, because you can: Update a web page without reloading the page Request data from a server - after the page has loaded Receive data from a server - after the page has loaded Send data to a server - in the background
2
- 1.1
  AJAX Introduction
- 1.2
  What is AJAX?
AJAX - The XMLHttpRequest Object
The keystone of AJAX is the XMLHttpRequest object.
2
- 1.1
  The XMLHttpRequest Object
- 1.2
  XMLHttpRequest Object Methods
AJAX - Send a Request To a Server
The XMLHttpRequest object is used to exchange data with a server.
3
AJAX - Server Response
The onreadystatechange Property The readyState property holds the status of the XMLHttpRequest. The onreadystatechange property defines a function to be executed when the readyState changes. The status property and the statusText property holds the status of the XMLHttpRequest object.
2
- 1.1
  The onreadystatechange Property
- 1.2
  Using a Callback Function
AJAX XML Example
AJAX can be used for interactive communication with an XML file.
1
- 1.1
  AJAX XML Example
AJAX PHP Example
AJAX is used to create more interactive applications.
2
- 1.1
  AJAX PHP Example
- 1.2
  The PHP File – “gethint.php”
AJAX ASP Example
AJAX is used to create more interactive applications.
2
- 1.1
  AJAX ASP Example
- 1.2
  The ASP File – “gethint.asp”
AJAX Database Example
AJAX can be used for interactive communication with a database.
2
- 1.1
  AJAX Database Example
- 1.2
  The AJAX Server Page
XML Applications
This chapter demonstrates some HTML applications using XML, HTTP, DOM, and JavaScript.
2
- 1.1
  The XML Document Used
- 1.2
  Display the First CD in an HTML div Element
AJAX Examples
Simple Examples A simple AJAX example Create a simple XMLHttpRequest, and retrieve data from a TXT file. An AJAX example with a callback function Create a XMLHttpRequest with a callback function, and retrieve data from a TXT file.
1
- 1.1
  Simple Examples