I'm struggling to create a binding to a UIInput element in a DataTable row. (Context: I'm trying to do validation across multiple fields in the same row.)
I have a backing bean for the main page (PlayBB; managed-bean-scope: "session") which contains a List of backing beans for each row (NameBB; managed-bean-scope: "none"). I've observed (through logging) that the binding occurs exactly once per page and not once per row as I had expected. Can one not bind to elements in a row? Do I need to bind the entire table instead and traverse the elements to do validation? Thanks to anyone who can help. -David- Here's the relevant code: -----------JSP----------- <%@ taglib uri="http://java.sun.com/jsf/html"; prefix="h" %> <%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f" %> <html> <head><title>JSF Play</title></head> <body> <f:view> <h:form id="form"> <h:commandButton value="Add Names" type="submit" action="#{play.addNames}"/> <h:dataTable id="names" value="#{play.nameBBList}" var="name" rendered="#{play.numberOfNames > 0}"> <h:column> <h:inputText id="first" value="#{name.first}" maxlength="10" size="10" binding="#{name.firstInput}" /> <h:inputText id="last" value="#{name.last}" maxlength="10" size="10"/> </h:column> </h:dataTable> </h:form> </f:view> </body></html> -----------JSP----------- ---------PlayBB.java---------- package jsfplay; import java.util.*; public class PlayBB { private List<NameBB> nameBBList=new ArrayList<NameBB>(); public PlayBB(){ } public int getNumberOfNames() { return nameBBList.size(); } public List<NameBB> getNameBBList() { return nameBBList;} public String addNames() { // fill in some names. NameBB newName = new NameBB("Joe","Smith"); nameBBList.add(newName); newName = new NameBB("Ralph","Johnson"); nameBBList.add(newName); return null; } } ---------PlayBB.java---------- ---------NameBB.java---------- package jsfplay; import javax.faces.component.*; public class NameBB { //properties private String first=""; private String last=""; private UIInput firstInput; private UIInput lastInput; public NameBB(){ } public NameBB(String first, String last) { this.first=first; this.last=last; } public String getFirst() {return first;} public String getLast() {return last;} public void setFirst(String first) {this.first=first;} public void setLast(String last) {this.last=last;} public void setFirstInput(UIInput firstInput) { System.out.println("FirstInput was set."); this.firstInput=firstInput; } public UIInput getFirstInput() {return firstInput; } } ---------NameBB.java---------- -- View this message in context: http://www.nabble.com/Binding-to-elements-in-DataTable-tf2041529.html#a5619707 Sent from the MyFaces - Users forum at Nabble.com.
