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PrimeFaces Cookbook by Mert Çalışkan, Oleg Varaksin

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Programmatic updating and scrolling with RequestContext

RequestContext is an easy-to-use utility class that provides useful goodies. RequestContext is available for AJAX as well as non-AJAX calls. The most important goodies will be revealed in this book.

In this recipe, we will see how to specify components to be updated at runtime rather than specifying update targets at compile time declaratively. We will also see how to scroll to any component after the current AJAX request completes. Scrolling to the given component with AJAX updates is very handy in long pages and can increase the website's usability.

How to do it...

In the first example, we will develop a counter that will be incremented in an action listener. The current counter value ...

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