Why to use asp.net ajax

Anthem.net is so simple to use on doesnot even have to write a line of code.

Why should we consider using msft asp.net ajax instead of anthem.net ?

thanks

Because ASP.NET Ajax is part of the .Net framework, so you are assured of support, documentation and continued development (and a huge and growing amount of tutorials etc from users). That can never be said of Anthem.Net. What happens if the creator just gets bored with it one day?

do we have to write lines of javascript code with asp.net ajax version?

Thanks for your help

No you don't have to. You can use its basic functionality without writing one line of code. You can also use all the extenders in the control toolkit without writing any javascript. However, you can also customise the behaviours as much as you want by adding some javascript. Watch some of theAjax videos here