problem with commandLink inside the Dataatble

hi
the commandLink is working outside the dataatable but it is not
working inside the Datatable
the code is pasted below

controller,javva
package controller;

import java.util.ArrayList;
import java.util.List;

import javax.faces.component.UIParameter;
import javax.faces.component.html.HtmlCommandLink;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
import javax.servlet.http.HttpServletRequest;

import com.saintgobain.sgsi.dca.ui.bean.GroupBean;
import com.saintgobain.sgsi.dca.ui.bean.GroupListBean;
import com.saintgobain.sgsi.dca.ui.bean.PersonBean;

public class WelcomeControl {
private List personList;

    private List groupList;

    private int groupsize;
    private String test;
// private List groupBeanList;

    //private String radio;

    //private List radioList;

    public WelcomeControl(){
        HttpServletRequest req =
(HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();
        System.out.println("request params:" + req.getAttribute("name1"));
        personList = new ArrayList();
        PersonBean p1 = new PersonBean();
        p1.setRole("");
        p1.setAppGroup("");
        PersonBean p2 = new PersonBean();
        p2.setRole("");
        p2.setAppGroup("");
        PersonBean p3 = new PersonBean();
        p3.setRole("");
        p3.setAppGroup("");
        PersonBean p4 = new PersonBean();
        p4.setRole("");
        p4.setAppGroup("");
        personList.add(p1);
        personList.add(p2);
        personList.add(p3);
        personList.add(p4);
        groupList = new ArrayList();
        this.groupsize = 1;
        groupList.add(new GroupListBean(groupsize));
        /*groupBeanList = new ArrayList();
        groupBeanList.add(new GroupBean());
        groupBeanList.add(new GroupBean());*/
    }

    public List getPersonList() {

        return personList;
    }

    public void setPersonList(List personList) {
        this.personList = personList;
    }

    public String doAddRow(ActionEvent e){
        System.out.println("inside do add row=====================");
        PersonBean p = new PersonBean();
        personList.add(p);
        return "success";
    }
        public void doDeleteRow(ActionEvent ae){
        List id = ((HtmlCommandLink) ae.getComponent()).getChildren();
        String toBeDeleted = (String)((UIParameter)(id.get(0))).getValue();
        int i=0;
        for (i=0;i<personList.size();i++){
            PersonBean p = (PersonBean) personList.get(i);
                    personList.remove(i);

                break;

        }
        /*ExternalContext context = FacesContext.getCurrentInstance()
        .getExternalContext();
        HttpServletRequest request = (HttpServletRequest)
context.getRequest();
        String val = request.getParameter("toBeDeleted");
        System.out.println("value to be deleted::::" + val);*/
// return "success";
    }

    public List getGroupList() {
// System.out.println("grouplist size::" + groupList.size());
        return groupList;
    }

    public void setGroupList(List groupList) {
        this.groupList = groupList;
    }
    public String doAddGroup(){
        this.groupsize = this.groupsize + 1;
        groupList.add(new GroupListBean(this.groupsize));
        return "success";
    }

    public void doAddGroupColumn(ActionEvent e){
        System.out.println(e.getComponent().getClass()
+"******************");
        List id = ((HtmlCommandLink) e.getComponent()).getChildren();
        Integer newColumn = (Integer)((UIParameter)(id.get(0))).getValue();
        int i = newColumn.intValue();
        ((GroupListBean)groupList.get(i-1)).getGroup().add(new GroupBean());
    }

    public int getGroupsize() {
        return groupsize;
    }

    public void setGroupsize(int groupsize) {
        this.groupsize = groupsize;
    }
        public String doDelete(ActionEvent e){
            System.out.println("*******************");
        List id = ((HtmlCommandLink) e.getComponent()).getChildren();
        Integer newColumn = (Integer)((UIParameter)(id.get(0))).getValue();
        int x = newColumn.intValue();
        System.out.println("the value of x"+x);
        List list = new ArrayList();
// list = ((GroupListBean)groupList.get(x-1)).getGroup();
        for (int
i=0;i<((GroupListBean)groupList.get(x-1)).getGroup().size();i++){
            list.add(((GroupListBean)groupList.get(x-1)).getGroup().get(i));
        }
        int count = 0;
        for (int i=0;i<list.size();i++){
            GroupBean gBean = (GroupBean)list.get(i);
            System.out.println(i + " " + gBean.isDelete() +
((GroupListBean)groupList.get(x-1)).getGroup().size());
            if (gBean.isDelete() == true){
                count++;
                System.out.println("list size::::" +
((GroupListBean)groupList.get(x-1)).getGroup().size());
                if (((GroupListBean)groupList.get(x-1)).getGroup().size() != 1)
                ((GroupListBean)groupList.get(x-1)).getGroup().remove(gBean);
            }
        }
            return "";
    }
        public void doDeleteGroup(ActionEvent e) {

        List id = ((HtmlCommandLink) e.getComponent()).getChildren();
        System.out.println(e.getComponent().getClass()
+"******************");
        Integer newColumn = (Integer)((UIParameter)(id.get(0))).getValue();
        int x = newColumn.intValue();
        for(int i=0;i<groupList.size();i++){
            GroupListBean bean = (GroupListBean)groupList.get(i);
            if (bean.getIndex() == (x)){
                x = i;

                break;

            }

        }
        Object obj = groupList.get(x);
        groupList.remove(obj);
        for (int i=x;i<groupList.size();i++){

        }
        }

        public String doSave() {
            System.out.println("doSave() called...");
            System.out.println("*****************" + getGroupList().size());
            if (getGroupList() != null && getGroupList().size() >0) {
                int size = getGroupList().size();
                GroupListBean listBean = null;
                for (int i = 0; i < size; i++) {
                    listBean = (GroupListBean) getGroupList().get(i);
                    System.out.println("Getting list bean contents:::" +
listBean.getGroupName());
                    //Service service = new Service();
                    //Call call = (Call) service.createCall();

                    //ArrayList list= new ArrayList();
                    //Iterator it=(Iterator) list.iterator();
                    //while(it.hasNext())
                    //{
                     //System.out.println("The list is iterated " +
it.next());
                    //}

                }
            }

            return "success";
                }

        public String getTest() {
            return test;
        }

        public void setTest(String test) {
            this.test = test;
        }

}
    }

jsf for this controller

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://
www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<meta http-equiv="Content-Type" content="text/html;
charset=iso-8859-1">
<LINK rel="stylesheet" type="text/css" href="../themes/style.css"
    title="Style">
<script type="text/javascript" src="../js/createform.js"></script>
<title>Data Centric Application - Create Form</title>
</HEAD>
<BODY>
<f:view>
    <h:form id="createForm">
        <h:panelGrid width="895" styleClass="TrameTableResult" id="pnl2"
            border="3">
            <h:outputText id="results" value="Create Form" />
            <h:outputText id="lblNoOfSearchRecords" />
        </h:panelGrid>
        <h:panelGrid width="695" columns="2" id="row2PanelGrids" border="1">
            <h:outputText id="FormText" value="Form Name /Nom de la forme "
                styleClass="sgTextNormalMediumBold" />

            <h:inputText id="formText1" size="15" />
            <h:outputText id="FormDesc" value="Form Description "
                styleClass="sgTextNormalMediumBold" />
            <h:inputText id="FormDesc1" size="15" />
            <h:outputText id="NoofpagesText"
                value="Number of rows for pagination "
                styleClass="sgTextNormalMediumBold" />
            <h:inputText id="pages1" size="15" />
            <h:outputText id="NorowsText" value="Number of Entries "
                styleClass="sgTextNormalMediumBold" />
            <h:outputText id="Scopcheck" value="Scope:"
                styleClass="sgTextNormalMediumBold" />

            <%--<h:panelGroup id="bttnGrp"
                style="padding-top: 10px;padding-right:470px;">

                <h:commandButton id="CreateNewBtn" value="CreateNewGroup"
                    styleClass="buttonAction"
                     actionListener="#{welcomeController.doAddGroup}"
                    />

            </h:panelGroup>--%>
            <h:commandButton id="createNewBtn" value="CreateNewGroup"
                immediate="true" action="#{welcomeController.doAddGroup}">
            </h:commandButton>
        </h:panelGrid>

        <h:dataTable value="#{welcomeController.groupList}" var="var1"
            id="groupTable">

            <h:column id="colOne">
                <h:panelGrid width="895" styleClass="TrameTableResult"
                    id="groupGridOne">
                    <h:panelGroup styleClass="backgroundTableResult"
                        style="height:4px;" id="groupGroupOne">
                        <h:outputText id="results1" value="Group#{var1.index}" />
                        <h:outputText styleClass="padding-left:30%;" id="addresses" />
                        <h:commandLink id="deletegroup" value="Delete Group"
                            actionListener="#{welcomeController.doDeleteGroup}">
                            <f:param value="#{var1.index}" name="delGr" id="delGr" />
                        </h:commandLink>
                    </h:panelGroup>

                </h:panelGrid>
                <h:panelGrid width="895" columns="5" id="row2Panel">
                    <h:outputText id="GroupnameTextt" value="Enter Group Name "
                        styleClass="sgTextNormalMediumBold" />
                    <h:inputText id="groupnameText1" size="15"
value="#{var1.groupName}" />
                    <h:commandLink id="InseNewAttBtn" value="New Attribute"
                        actionListener="#{welcomeController.doAddGroupColumn}">

                    <f:param value="#{var1.index}" name="newColumn" id="newColumn" />
                    </h:commandLink>

                    <h:outputText id="grouporderTextt1" value="Group Order "
                        styleClass="sgTextNormalMediumBold" />
                    <h:inputText id="grouporderText2" size="15"
                        value="#{var1.groupOrder}" />
                </h:panelGrid>
                <h:dataTable id="groupColumnId" value="#{var1.group}"
var="grouplist"
                    width="895">
                    <h:column id="col1GC">
                        <f:facet name="header">
                            <h:outputText id="LabelText" value="Label"
                                styleClass="sgTextNormalMediumBold" />
                        </f:facet>
                        <h:inputText id="labelText1" size="15"
value="#{grouplist.label}" />
                    </h:column>
                    <h:column id="col2GC">
                        <f:facet name="header">
                            <h:outputText id="ControlText" value="Control Type"
                                styleClass="sgTextNormalMediumBold" />
                        </f:facet>
                        <h:selectOneListbox>
                        </h:selectOneListbox>
                    </h:column>
                    <h:column id="col3GC">
                        <f:facet name="header">
                            <h:outputText id="MandatoryText" value="Mandatory"
                                styleClass="sgTextNormalMediumBold" />
                        </f:facet>
                        <h:selectBooleanCheckbox id="Mandcheck1"
                            value="#{grouplist.mandatory}" />
                    </h:column>
                    <h:column id="col4GC">
                        <f:facet name="header">
                            <h:outputText id="PreviewText" value="Preview Field"
                                styleClass="sgTextNormalMediumBold" />
                        </f:facet>
                        <h:selectBooleanCheckbox id="Previewcheck2"
                            value="#{grouplist.prfield}" />
                    </h:column>
                    <h:column id="col5GC">
                        <f:facet name="header">
                            <h:outputText id="DefaultText" value="Default Values"
                                styleClass="sgTextNormalMediumBold" />
                        </f:facet>
                        <h:inputText id="defaultText1" size="15"
                            value="#{grouplist.defaultValue}" />
                    </h:column>
                    <h:column id="col6GC">
                        <f:facet name="header">
                            <h:outputText id="OrderText" value="Field Order" />
                        </f:facet>
                        <h:inputText id="orderText1" value="#{grouplist.order}"
size="10" />
                    </h:column>
                    <h:column id="col7GC">
                        <f:facet name="header">
                            <h:commandLink id="Deletebtn" value="Delete"
                                styleClass="buttonAction" immediate="true"
                                actionListener="#{welcomeController.doDelete}">
                                <f:param value="#{var1.index}" name="newColumn"
id="deleteColumn" />
                            </h:commandLink>
                        </f:facet>
                        <h:selectBooleanCheckbox id="deletecheck3"
                            value="#{grouplist.delete}"/>
                    </h:column>
                </h:dataTable>
            </h:column>
        </h:dataTable>
        <h:panelGrid width="895" styleClass="TrameTableResult">
            <h:panelGroup styleClass="backgroundTableResult" style="height:
4px;">
                <h:outputText id="Accesstitle" value="Applicative Groups" />
                <h:outputText styleClass="padding-left:30%;"
                    id="lblNoOfSearchRecords1" />
            </h:panelGroup>
            <h:panelGrid width="695" columns="4" id="row2PanelGrid">
                <h:dataTable id="dataTableId1"
                    value="#{welcomeController.personList}" var="list">
                    <h:column id="column1">
                        <f:facet name="header">
                            <h:outputText id="column1header" value="Role"></h:outputText>
                        </f:facet>
                        <h:inputText id="roleId" value="#{list.role}"></h:inputText>
                    </h:column>
                    <h:column id="column2">
                        <f:facet name="header">
                            <h:outputText id="column2header" value="Applicative Group"></
h:outputText>
                        </f:facet>
                        <h:inputText id="appGroupId" value="#{list.appGroup}"></
h:inputText>
                    </h:column>
                    <h:column id="column3">
                        <h:commandLink id="addBtnid" value="Add" immediate="true"
                            actionListener="#{welcomeController.doAddRow}">
                        </h:commandLink>
                    </h:column>
                    <h:column id="column4">
                        <h:commandLink id="deleteBtnId" value="Delete" immediate="true"
                            actionListener="#{welcomeController.doDeleteRow}">
                            <f:param value="#{list.role}" name="toBeDeleted"
id="toBeDeleted" />
                        </h:commandLink>
                    </h:column>
                </h:dataTable>
            </h:panelGrid>
        </h:panelGrid>
        <h:panelGrid id="bttnGrp1" columns="2" width="30%"
            style="padding-top: 10px;padding-left:470px;">
            <h:commandLink id="printBtn1" value="Save"
styleClass="buttonAction"
                onmousedown="return Form1_Validator();" />
            <h:commandLink id="exportBtn1" value="Cancel"
                styleClass="buttonAction" onmousedown="return disp_confirm1();" />
        </h:panelGrid>
    </h:form>
</f:view>
</BODY>
</HTML>

comment : all the commandLinks are working fine except this
commandLink :
<h:commandLink id="Deletebtn" value="Delete"
                                styleClass="buttonAction" immediate="true"
                                actionListener="#{welcomeController.doDelete}">
                                <f:param value="#{var1.index}" name="newColumn"
id="deleteColumn" />
                            </h:commandLin
please help me. i am trying too hard..

Thanks
Jai