ASP.NET Ajax basics: Calling ScriptServices using JavaScript

In a previous post "Partial page rendering", we have looked into ASP.NET Ajax basics - partial rendering using UpdatePanel control. In this article you will see another way to perform partial page rendering and that is - by calling a ScriptService from JavaScript. Let's see why UpdatePanels are not always a good solution. UpdatePanels are very simple and it is very easy to turn your classic aspx pages into ajax-enabled pages. However, this has its own downsides.