commandLink not working in datatable+jsf2.0

I want to display detail viewer by clicking commentlink in dataTable on master viewer, but It doesn't work.
In detail viewer, there is a hiddentext to hold the id.
managedbean with request scope and I don't want to use sessionscope. When sessionscope is used. It works clearly.
Please Help me guys!

Master Viewer:

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:p="http://primefaces.prime.com.tr/ui">

<h:head>

</h:head> 
<body>
<h:form id="form1">  
    <h:dataTable id="data1" binding="#{userBean.dataTable}" value="#{userBean.datalist}"  var="dataItem">  
        <h:column>  
            <f:facet name="header">  
                <h:outputText value="ID" />  
            </f:facet>  
         [b]   <h:commandLink id="cLink_1" value="#{dataItem.id}" action="#{userBean.select}"> [/b]
            </h:commandLink>
        </h:column>  
  
        <h:column>  
            <f:facet name="header">  
                <h:outputText value="USER" />  
            </f:facet>  
            <h:outputText value="#{dataItem.username}" />  
        </h:column>  
  
        <h:column>  
            <f:facet name="header">  
                <h:outputText value="PASSWORD" />  
            </f:facet>  
            <h:outputText value="#{dataItem.password}" />  
        </h:column>  
        
    </h:dataTable>

</h:form>  
 </body> 
</html>

Detail Viewer: User.xhtml

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:ui="http://java.sun.com/jsf/facelets">

<h:head></h:head> 
<h:body>

<h:form style="background-color: aliceblue; border:1px;">
                <h:panelGrid columns="2">
                	<h:outputLabel>Id:</h:outputLabel>
                    <h:outputText value="#{userBean.dataItemId.value}"/>  
                    <h:outputLabel>User:</h:outputLabel>
                    <h:inputText value="#{userBean.user.username}"/>    
                    <h:outputLabel>Password:</h:outputLabel>
                    <h:inputText value="#{userBean.user.password}"/>                          
                    <h:commandButton style="width:100px;" value="Save" action="#{userBean.saveDept}"/>
                </h:panelGrid>
                [b] <h:inputHidden binding="#{userBean.dataItemId}"/>[/b]            
   </h:form>
    </h:body>
</html>

ManagedBean:

package org.project.bean;
import java.util.List;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.context.FacesContext;
import javax.faces.component.html.HtmlDataTable;
import javax.faces.component.html.HtmlInputHidden;

import org.servicefinder.ServiceLocator;

@ManagedBean
@RequestScoped
public class UserBean {
	/**
	 * 
	 */
	private User user = new User();
	private UserBO service;
	private List<User> datalist;
	private HtmlDataTable dataTable;
	private HtmlInputHidden dataItemId = new HtmlInputHidden();
	
	public UserBean() {
	}
	
	public List<User> getDatalist() {
		if(FacesContext.getCurrentInstance().getRenderResponse()){
			ServiceLocator locator = new ServiceLocator();
			service = (UserBO)locator.lookupService("UserBO");
			datalist = service.findAll();
		}
		return datalist;
	}

public void setService(UserBO service) {
		this.service = service;
	}
	public User getUser() {
		return user;
	}
	public void setUser(User user) {
		this.user = user;
	}
	public String saveDept(){
		ServiceLocator locator = new ServiceLocator();
		service = (UserBO)locator.lookupService("UserBO");
		User dept = new User();
		dept.setUsername(user.getUsername());
		dept.setPassword(user.getPassword());
		service.save(dept);
		return null;
	}
	public HtmlDataTable getDataTable() {
		return dataTable;
	}

public void setDataTable(HtmlDataTable dataTable) {
		this.dataTable = dataTable;
	}

public HtmlInputHidden getDataItemId() {
		return dataItemId;
	}

public void setDataItemId(HtmlInputHidden dataItemId) {
		this.dataItemId = dataItemId;
	}
	public String select() {
		user = (User) dataTable.getRowData();
               //Store the ID of the data item in hidden input element.
               dataItemId.setValue(user.getId());
               return "User";
    }

}

Welcome to the JavaRanch, Gokmen! There's a "Code" button on our message editor that can wrap tags around sample java code and XML. It makes it easier to read.

Personally, I don't like pop-up windows and for that matter, my browser isn't set to open new windows.

However, if you must do so, you need to specify the pop-up window target on your commandLink the same way you would on an HTML "<A HREF=>" tag.

Thanks Tim.