Now here in this tutorial, I’ll explain how to bind dropdownlist country-state-city cascading using ajax without page refresh that depends on one another in asp.net using c# as well as vb.net with example code. If you check my previous tutorials, I’d explained about simpe country-state-city cascading for dropdownlist, ajax introduction with example, dynamically bind and show data in dropdownlist, and other amazing tutorials on DropDownList, GridView, and Asp.net
Call Server-side Function Using jQuery Ajax Call
In my previous tutorials, I’d explained ajax introduction with example, how to call server-side method from javascript, how to call javascript function from code-behind and more cracking tutorials on Ajax, Asp.net, JavaScript and jQuery here. Now here in this tutorial, I’ll explain how to call server-side function using jquery ajax call from .aspx page as well as how to call code-behind method in c# or vb.net with example code.
Ajax Introduction: How to use AJAX in Asp.net with Example?
One major difference between the Web Applications and Desktop Applications is that Web Applications are stateless. That means a web application runs on client-side and communicates with server-side in a stateless manner. When we use AJAX in our webform to submit form, JavaScript will make a request to the server, interpret the results and update the current portion of the screen, at that time user would never know anything that data was transmitted to the server.
