AJAX Complete Demo

what is Ajax .?
Ajax Stands for Asynchronious Java Script and XML. the word Asynchronious means user dont need to wait for
the server respond to a request.
but can continue using web page.It is client side technolog.

Java script use AJAX for altering the page.
XML use AJAX for exchanging information
ASP and JSP use AJAX in server side handeling.

so we can say that AJAX is more interactive, faster and user friendly.

AJAX controll : -It enable the client side behaviour more rich without client side scripting language.
the control tool Box in VS IDE contains group of controls called : Ajax Extantion.
1. ScriptManager Control
2. ScriptManagerProxy Control.
3. UpdatePanel Control.
4. The Update Progress Control.
5. the Timer Control.


1. Script Manager Control :
This ScriptManager control provides support for client-side AJAX features in an AJAX enabled web pages.
It actually registers and loads the Microsoft AJAX library to enable the AJAX features

2. ScriptManagerProxy Control :

You can only have one script manager per page but you can have multiple proxies.

3. UpdatePanel Control :

UpdatePanel controls are a central part of AJAX functionality in ASP.NET.
They are used with the ScriptManager control to enable partial-page rendering.
Partial-page rendering reduces the need for synchronous postbacks and complete page updates
when only part of the page has to be updated.

4. Update Progress Control:
5. The Timer Control.




  1. Update Progress Demo : -



  1. On Click of btnUpdate, this code will work
  2. and it is basically used for graphical representation of the background process.





2. Timer Control : 




3. The world famous Example Cascading DropDown List

1. DataBase Stuff (This data I had used for Creating Cascading DDL)

2.  Designing...





3. Background Code :
                                   Following NameSpaces are used..
 
2. 

3. 

4. 



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