how to show the progressbar during check the username availability or how to implement username check availabilty like yahoo using asp.net ajax

Introduction:

Here I will explain how to show the progressbar during check the username availability using asp.net Ajax or how to implement username check availabilty like yahoo using asp.net ajax.

Description:

In Previous post I explained clearly how to check the username availability using asp.net ajax Now I will explain how to show the progressbar during check the username from database just like checking the username in yahoo if you observe yahoo registration page after enter username and click on check button at that time we will see progress image during get the data from database after that result will display now we will implement the same thing in our application.

how to check username availability using asp.net ajax or check username availability in asp.net using ajax

Introduction:

Here I will explain how to check the username availability using asp.net Ajax .

Description:

I designed one registration page in that user will enter userdetails like username, password etc at the time of enter username in textbox I need to validate the username whether that username available or already taken by any other user for that I am checking username availability in database based on username. Here I am getting one problem that is after enter username in textbox I am getting the data from database and showing the result on page like whether that username available or not but at that time page gets postback and losing the entered values in textboxes for that reason I used ajax concept to check username availability.