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

Posted on 2014-04-07
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"
    widgetVar="datatableVar" >

          <p:commandLink value="#{theTableIterator.jobName}"
          <p:outputLabel value="#{theTableIterator.jobDescription}"
style="#{theBean.styleString}" />

public void goToClickedLink()
   try {
      FacesContext context = FacesContext.getCurrentInstance();
      DataTable dt = (DataTable)
               System.out.println("Row Index : " + dt.getRowIndex());
        catch (Exception e) {
Question by:prain
  • 2
LVL 35

Accepted Solution

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}"
                       actionListener="#{theBean.goToClickedLink(rowIndex)}"  />

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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"

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Author Closing Comment

ID: 39988870
You Buty. Thanks a bunch. I do not know why I did not think in that way.
LVL 35

Expert Comment

ID: 39990506
Glad it worked for you! :)

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