Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
PrimeFaces Beginner's Guide

You're reading from   PrimeFaces Beginner's Guide The perfect introduction to PrimeFaces, this tutorial will take you step by step through all the great features, ranging from form-creation to sophisticated navigation systems. All you need are some basic JSF and jQuery skills.

Arrow left icon
Product type Paperback
Published in Nov 2013
Publisher Packt
ISBN-13 9781783280698
Length 378 pages
Edition 1st Edition
Languages
Arrow right icon
Author (1):
Arrow left icon
K. Siva Prasad Reddy K. Siva Prasad Reddy
Author Profile Icon K. Siva Prasad Reddy
K. Siva Prasad Reddy
Arrow right icon
View More author details
Toc

Table of Contents (15) Chapters Close

Preface 1. Introduction to PrimeFaces FREE CHAPTER 2. Introducing Sample Application TechBuzz 3. Using PrimeFaces Common Utility Components 4. Introducing the PrimeFaces Client Side Validation Framework 5. Introducing Text Input Components 6. Working with Selection Input Components 7. Introducing Advanced Input Components 8. Working with Data Components 9. Introducing Advanced Data Visualization Components 10. Working with Layout Components 11. Introducing Navigation Components 12. Drawing Charts 13. Using PrimeFaces Themes Index

Time for action – updating UI components using RequestContext.update()


In this section, we will demonstrate how to update client-side view components from the server side using the following steps:

  1. Create a form with an input field and a submit button as follows:

    <h:form id="form1">
      <h:panelGrid columns="2">
        <h:outputLabel value="EmailId" />
        <p:inputText id="emailId" value="#{requestContextController.emailId}"/>
        
        <p:commandButton id="submitBtn" value="Submit" actionListener="#{requestContextController.handleSubmit}" />
      </h:panelGrid>
      <h:outputText value="You have Entered : #{requestContextController.emailId}" />
    </h:form>
  2. In the action handler method, update the form component using the RequestContext.update() method as follows:

    public void handleSubmit(ActionEvent ae)
    {
      RequestContext.getCurrentInstance().update("form1");
    }

What just happened?

We got a RequestContext instance using RequestContext.getCurrentInstance() and...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime