A Beginners Session to
Asynchronous client calls to the
server. A “Post Back” free
By Jonas Stawski
What To Expect From This Session
Basics of Ajax
BIG picture of how Ajax works
What Not To Expect From This
Inner workings of Ajax (Ajax engine)
What is Ajax?
What is so cool about Ajax?
Connection between client side script and
server side script.
Better user experience
How does Ajax work?
A client script asynchronously calls a
server side function.
Classic VS Ajax
What is Microsoft doing about it?
Ajax In the Real World
Windows Live Local
Windows Live Mail (Hotmail Beta)
Car Classifieds website has a dropdown
with the makes of all the cars. Based on the
selection of the “makes” dropdown the
“models” dropdown has to be populated with
the correct models provided by the
Add a reference to the Ajax engine.
Must tell the application how to handle ashx files
Must register the class to be used by Ajax.
Create a PUBLIC function in the server side that
will be accessed from the client script.
Mark the function so it is available on the client
Access the server side function through client
Handle your need.
Sample 1: Get Time from the server.
Sample 2: Passing parameters to the
Sample 3: Passing objects as parameters.
Sample 4: Getting a class from the server.
Sample 5: Google Suggest mock up.
Sample 6: Writing your own AJAX.
Ajax: A New Approach to Web Applications