Solved

How to capture the clicked row number in a p:dataTable from the backer bean?

Posted on 2014-04-07
3
2,048 Views
Last Modified: 2014-04-09
I have tried this, But I do not get the value printed. Instead an exception. Can someone help?

<p:dataTable id="theTable"  var="theTableIterator"
    value="#{theBean.jobList}"
    selection="#{theBean.selectedRow}"
    rowIndexVar="rowIndex"
    widgetVar="datatableVar" >

    <p:column>
          <p:commandLink value="#{theTableIterator.jobName}"
                        style="#{theBean.styleString}"
                        update="theTable"
                       actionListener="#{theBean.goToClickedLink()}"
    />
   </p:column>  
        
        <p:column>
          <p:outputLabel value="#{theTableIterator.jobDescription}"
style="#{theBean.styleString}" />


public void goToClickedLink()
{      
   try {
      FacesContext context = FacesContext.getCurrentInstance();
      DataTable dt = (DataTable)
                  FacesContext.getCurrentInstance().getViewRoot().findComponent("theTable");
      
               System.out.println("Row Index : " + dt.getRowIndex());
        }
        catch (Exception e) {
                         
        }
            
      }
0
Comment
Question by:prain
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 36

Accepted Solution

by:
mccarl earned 250 total points
ID: 39987701
Again, I don't know too much about JSF/Primefaces but since no one else has commented with a solution, I'll give what I think *MAY* work...

Try this, in your p:commandLink can you pass variables as arguments, where "rowIndex" is what you defined in your p:dataTable as the rowIndexVar, ie...
          <p:commandLink value="#{theTableIterator.jobName}"
                        style="#{theBean.styleString}"
                        update="theTable"
                       actionListener="#{theBean.goToClickedLink(rowIndex)}"  />

Open in new window

And then in your Java code, you might be able to define the ActionListener to accept that variable...
public void goToClickedLink(int rowIndex)
{
    // do something with "rowIndex"
}

Open in new window

0
 

Author Closing Comment

by:prain
ID: 39988870
You Buty. Thanks a bunch. I do not know why I did not think in that way.
0
 
LVL 36

Expert Comment

by:mccarl
ID: 39990506
Glad it worked for you! :)
0

Featured Post

Turn Insights into Action

Communication across every corner of your business is essential to increase the velocity of your application delivery and support pipeline. Automate, standardize, and contextualize your communication processes with xMatters.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
The viewer will learn how to implement Singleton Design Pattern in Java.
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.

691 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question