Raghu Sundar

Hi Tim,

Thanks for the reply.

To deal with large data live scrolling is implemented.Do i need to do something else to deal with large dataset?
As you suggested i tried explicitly implementing datamodel but its of no use.Scrolling,column filtering is not working.Cell editing which used to work before datamodel implementation is not working now,getting null pointer exception in the cell edit listener method,pointing the row id (which is the primary key in the POJO class)

Cell edit listener method snippet

public void onCellEdit(CellEditEvent event) { UIColumn columnName = event.getColumn(); String headerText = columnName.getHeaderText(); DataTable dataTableObject = (DataTable) event.getSource(); Object oldValue = event.getOldValue(); Object newValue = event.getNewValue(); LPINFO rowInfo = (LPINFO) dataTableObject.getRowData(); String detectedId = rowInfo.getLpID();//[b]getting null pointer exception here[/b]

The following are the changes i made with managed bean

managed bean
@PostConstruct public void init() { LPDao dao=new LPDao(); list=dao.getLpinfoList(); [b]lpModel=new LpDataModel(list);[/b] }

I referred lpModel as value attribute in the data table and removed the rowKey attribute.

Datamodel class
public class LpDataModel extends ListDataModel<LPINFO> implements SelectableDataModel<LPINFO>,Serializable { public LpDataModel() { } public LpDataModel(List<LPINFO>data) { super(data); } @Override public LPINFO getRowData(String rowKey) { System.out.println("inside data model..."); List<LPINFO>lpinfos=(List<LPINFO>)getWrappedData(); for(LPINFO lpinfo : lpinfos) { if(String.valueOf(lpinfo.getLpID()).equals(rowKey)) { return lpinfo; } } return null; } @Override public Object getRowKey(LPINFO lpinfo) { return lpinfo.getLpID(); } }

I have a primefaces editable datatable with column filtering feature.The datatable has live scrolling feature.The problem that i am facing here is that both filtering and scrolling are happening correctly with Request scoped managed bean but when the scope of the same bean is changed to view scope(javax.faces.bean.ViewScoped) then the filtering happens but on removing the keyed in key word from filter box the table content is not reset to original state and also i am not able to scroll down to next set of records on reaching the end of scrolling.Cell editing feature is working perfectly.

One thing that i observed is ,currently i am querying 5000 odd records to load into datatable.But if the number of records is limited below 5000 scrolling is happening correctly but problem with filtering remains same.I even tested by upgrading to Primefaces 5.1 from 3.5 but no luck .Can someone please help me how to resolve this issue,so that it works in view scoped.Thanks in advance

Code snippet of xhtml page

<h:form id="form"> <div id="content"> <p:dataTable id="workSpaceList" var="data" value="#{workSpaceBean.list}" widgetVar="multiSelection" selection="#{workSpaceBean.selectedRows}" resizableColumns="true" liveScroll="true" scrollRows="10" scrollWidth="90%" scrollHeight="70%" styleClass="datatable" tableStyle="table-layout:auto;width:auto important!;height:auto important!;padding-left:15px;" scrollable="true" editable="true" editMode="cell" filteredValue="#{workSpaceBean.filteredWorkSpaceItems}" rowKey="#{data.lpID}" > <p:ajax event="cellEdit" listener="#{workSpaceBean.onCellEdit}" /> <p:column headerText="Insured" filterBy="#{data.insuredName}" sortBy="#{data.insuredName}" sortFunction="#{workSpaceBean.sortColumn}" filterMatchMode="contains" style="width:6%;white-space:pre-line;" escape="false" filterStyle="width:80% !important; margin-top:8%;"> <p:cellEditor> <f:facet name="output"> <h:outputText value="#{data.insuredName}" /> </f:facet> <f:facet name="input"> <p:inputText value="#{data.insuredName}" style="width:100%" label="insured" /> </f:facet> </p:cellEditor> <!-- style="width:250px" --> </p:column> . .(26 columns) . . . . </p:dataTable> </div> </h:form>

Managed bean

@ManagedBean @ViewScoped public class WorkSpaceBean implements Serializable { public transient Connection con; List<LPINFO> list=new ArrayList<LPINFO>(); public LPINFO[] selectedRows=new LPINFO[0]; public LPINFO selectedRow; private List<LPINFO> filteredWorkSpaceItems; @PostConstruct public void init() { LPDao dao=new LPDao(); list=dao.getLpinfoList(); selectedRow=new LPINFO(); } . . . }

DAO class

public class LPDao { transient Connection con; PreparedStatement pstmt=null; ResultSet rs=null; LPINFO objLpinfo; List<LPINFO> lpList=new ArrayList<LPINFO>(); public List<LPINFO> getLpinfoList() { try { con=JdbcConnection.getJdbcConnection(); pstmt=con.prepareStatement("select * from LPINFO where" + " LPINFO.ClearDate=null " + "or LPINFO.ClearDate >= " + "(select TOP 1 Tbl_CurrentYear.CurrentYear from dbo.Tbl_CurrentYear)"+ "order by LPID desc"); rs=pstmt.executeQuery(); while(rs.next()) { objLpinfo=new LPINFO(); objLpinfo.setInsuredName(rs.getString("InsuredName")); objLpinfo.setCustAddress_City(rs.getString("CustAddress_City")); . . . lpList.add(objLpinfo); } } catch(Exception e) { e.printStackTrace(); } finally { try { con.close(); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } return lpList; } }

I am trying to display dialog popup containing input text area on click of a command button in one of the column using the approach shown in showcase example .In my case the datatable is a multiple selection enabled with the implementation of datamodel.The pop-up with text area only appears when the datatable has same feature as shown in the showcase but when multiple selection is implemented (with or without datamodel implementation)nothing gets displayed in the text area and i get the following exception when i check a row and click on the command button.When i directly click on command button no exception is thrown.

javax.faces.FacesException at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:86) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.NullPointerException at com.gaic.datamodel.CarDataModel.getRowData(CarDataModel.java:27) at com.gaic.datamodel.CarDataModel.getRowData(CarDataModel.java:1) at org.primefaces.component.datatable.DataTable.getRowData(DataTable.java:953) at org.primefaces.component.datatable.feature.SelectionFeature.decodeMultipleSelection(SelectionFeature.java:71) at org.primefaces.component.datatable.feature.SelectionFeature.decode(SelectionFeature.java:40) at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:57) at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:796) at org.primefaces.component.api.UIData.processDecodes(UIData.java:228) at javax.faces.component.UIForm.processDecodes(UIForm.java:216) at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048) at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048) at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:926) at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78) ... 15 more

My JSF page snippet

<h:body> <h:form id="form"> <p:growl id="msgs" showDetail="true" /> <p:dataTable id="cars" var="car" value="#{tableBean.mediumCarsModel}" selection="#{tableBean.selectedCars}"> <p:column selectionMode="multiple" style="width:2%" /> <p:column headerText="Model" style="width:24%"> <h:outputText value="#{car.model}" /> </p:column> <p:column headerText="Year" style="width:24%"> <h:outputText value="#{car.year}" /> </p:column> <p:column headerText="Manufacturer" style="width:24%"> <h:outputText value="#{car.manufacturer}" /> </p:column> <p:column headerText="Color" style="width:24%"> <h:outputText value="#{car.color}" /> </p:column> <p:column style="width:4%"> <p:commandButton id="selectButton" update=":form:display" oncomplete="carDialog.show()" icon="ui-icon-search" title="View"> <f:setPropertyActionListener value="#{car}" target="#{tableBean.selectedCar}" /> </p:commandButton> </p:column> </p:dataTable> <p:dialog header="Car Detail" widgetVar="carDialog" resizable="false" id="carDlg" showEffect="fade" hideEffect="explode" modal="true"> <p:dataList id="display" value="#{tableBean.selectedCar}" var="selectedWorkSpaceItem" style="border: 0px solid gray;padding-bottom:1px;"> <p:inputTextarea value="#{selectedWorkSpaceItem.color}"> </p:inputTextarea> </p:dataList> </p:dialog> </h:form>

My managed bean

public class TableBean implements Serializable{ private final static String[] colors; private final static String[] manufacturers; static { colors = new String[10]; colors[0] = "Black"; colors[1] = "White"; colors[2] = "Green"; colors[3] = "Red"; colors[4] = "Blue"; colors[5] = "Orange"; colors[6] = "Silver"; colors[7] = "Yellow"; colors[8] = "Brown"; colors[9] = "Maroon"; manufacturers = new String[10]; manufacturers[0] = "Mercedes"; manufacturers[1] = "BMW"; manufacturers[2] = "Volvo"; manufacturers[3] = "Audi"; manufacturers[4] = "Renault"; manufacturers[5] = "Opel"; manufacturers[6] = "Volkswagen"; manufacturers[7] = "Chrysler"; manufacturers[8] = "Ferrari"; manufacturers[9] = "Ford"; } private List<Car> cars; private Car selectedCar; private CarDataModel mediumCarsModel; private Car[] selectedCars; public TableBean() { cars = new ArrayList<Car>(); populateRandomCars(cars, 50); mediumCarsModel = new CarDataModel(cars); } private void populateRandomCars(List<Car> list, int size) { for(int i = 0 ; i < size ; i++) list.add(new Car(getRandomModel(), getRandomYear(), getRandomManufacturer(), getRandomColor())); } public Car getSelectedCar() { return selectedCar; } public void setSelectedCar(Car selectedCar) { this.selectedCar = selectedCar; } public List<Car> getCars() { return cars; } private int getRandomYear() { return (int) (Math.random() * 50 + 1960); } private String getRandomColor() { return colors[(int) (Math.random() * 10)]; } private String getRandomManufacturer() { return manufacturers[(int) (Math.random() * 10)]; } private String getRandomModel() { return UUID.randomUUID().toString().substring(0, 8); } public CarDataModel getMediumCarsModel() { if(mediumCarsModel==null) { System.out.println("yes it is null!!!!!!"); mediumCarsModel = new CarDataModel(cars); } return mediumCarsModel; } public void setMediumCarsModel(CarDataModel mediumCarsModel) { this.mediumCarsModel = mediumCarsModel; } public Car[] getSelectedCars() { return selectedCars; } public void setSelectedCars(Car[] selectedCars) { this.selectedCars = selectedCars; }

Is there any way using which i can display the content in dialog text area?

Hi,I am thinking of developing a new JSF application which is of mid size.I am thinking of using APIs like JPA,hibernate to handle database integration and persistence.I am not able to decide on the right choice among these two to be good to use with JSF.Can someone please help me make a right choice and also the right design pattern to use.

I have a form with primefaces input text(p:inputText).Many of the input text values are of the type currency in dollars.When i try to use ,it mandates the user to include $ symbol prepended to the value.Is there any way using which on blur of the field the dollar symbol is prepended and the number gets formatted with proper commas.

Hi Tim,Thanks for your reply.My actual requirement is that i have a webpage in my app built with JSF 2 and primefaces.It has a selectone menu and a commandlink to do an action by selecting appropriate option.One of the option is to preview pdf by selecting a record from the datatable.It is actually report generated at the background using record details and should be previewed in browser.I have implemented blockui for all the options and they are working good(The status indicator starts and stops with start and completion of action) except for previewing where the status indicator remains intact with pdf generated in separate window/tab.I need to manually refresh the page in order to hide the blockui indicator.The reason may be that the preview request is of non-ajax type and oncomplete action is not working on the component.

Can you please suggest me if there is any way using which the indicator can be hidden as soon the pdf gets previewed.

I am generating pdf and displaying it in separate window/tab using the approach described in BalusC Code: PDF handling.I need to display blockui ajax loader when i select the commandlink to display pdf.The pdf gets generated but the ajax loader image remains as it is.I need to manually refresh the page to hide it.Is there any way using which it can be hidden as soon as the pdf gets displayed.

My code snippet is as below

JSF page
<h:form id="subFrm"> <p:commandLink value="Download PDF" action="#{pdfBean.downloadPDF}" onclick="blkUi.show()" oncomplete="blkUi.hide()" id="cmdLink" ajax="false" /> <p:blockUI block="subFrm" trigger="cmdLink" widgetVar="blkUi"> processing...<br /> <p:graphicImage value="/images/ajaxLoader.gif" /> </p:blockUI> </h:form>
snippet of Managed bean which is of request scope
@ManagedBean @RequestScoped public class PdfBean { // Constants ---------------------------------------------------------------------------------- private static final int DEFAULT_BUFFER_SIZE = 10240; // 10KB. // Actions ------------------------------------------------------------------------------------ public void downloadPDF() throws IOException { // Prepare. FacesContext facesContext = FacesContext.getCurrentInstance(); ExternalContext externalContext = facesContext.getExternalContext(); HttpServletResponse response = (HttpServletResponse) externalContext.getResponse(); String filePath=externalContext.getRealPath("/pdf"); File file = new File(filePath, "modified.pdf"); BufferedInputStream input = null; BufferedOutputStream output = null; try { // Open file. input = new BufferedInputStream(new FileInputStream(file), DEFAULT_BUFFER_SIZE); // Init servlet response. response.reset(); response.setHeader("Content-Type", "application/pdf"); response.setHeader("Content-Length", String.valueOf(file.length())); response.setHeader("Content-Disposition", "inline; filename=\"" + "modified.pdf" + "\""); output = new BufferedOutputStream(response.getOutputStream(), DEFAULT_BUFFER_SIZE); // Write file contents to response. byte[] buffer = new byte[DEFAULT_BUFFER_SIZE]; int length; while ((length = input.read(buffer)) > 0) { output.write(buffer, 0, length); } // Finalize task. output.flush(); } finally { // Gently close streams. close(output); close(input); } // Inform JSF that it doesn't need to handle response. // This is very important, otherwise you will get the following exception in the logs: // java.lang.IllegalStateException: Cannot forward after response has been committed. //externalContext.redirect(((HttpServletRequest)externalContext.getRequest()).getRequestURI()); facesContext.responseComplete(); /*FacesContext.getCurrentInstance().getExternalContext() .redirect("index.xhtml");*/ } // Helpers (can be refactored to public utility class) ---------------------------------------- private static void close(Closeable resource) { if (resource != null) { try { resource.close(); } catch (IOException e) { // Do your thing with the exception. Print it, log it or mail it. It may be useful to // know that this will generally only be thrown when the client aborted the download. e.printStackTrace(); } } } }

Oops!!! Now i got to know how much negligent i am.Anyway,thanks for pointing out my mistake.

I have a JSF app and for some reasons i need to refresh the page on browser back button.I tried implementing the solution given in Force JSF to refresh page / view / form when back button is pressed ,the only difference is that my app runs with servlet version 2.5 so i did the mapping in web.xml as below

<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <context-param> <param-name>javax.faces.STATE_SAVING_METHOD</param-name> <param-value>client</param-value> </context-param> <context-param> <param-name>javax.faces.CONFIG_FILES</param-name> <param-value>/WEB-INF/faces-config.xml</param-value> </context-param> <listener> <listener-class>com.sun.faces.config.ConfigureListener</listener-class> </listener> <context-param> <param-name>javax.faces.PROJECT_STAGE</param-name> <param-value>Production</param-value> </context-param> <context-param> <param-name>javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE</param-name> <param-value>true</param-value> </context-param> <welcome-file-list> <welcome-file>login.xhtml</welcome-file> </welcome-file-list> <servlet> <servlet-name>FacesServlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>FacesServlet</servlet-name> <url-pattern>/faces/*</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>FacesServlet</servlet-name> <url-pattern>*.jsf</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>FacesServlet</servlet-name> <url-pattern>*.faces</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>FacesServlet</servlet-name> <url-pattern>*.xhtml</url-pattern> </servlet-mapping> <servlet> <description></description> <display-name>SessionUtil</display-name> <servlet-name>SessionUtil</servlet-name> <servlet-class>com.gaic.lpsr.utilclasses.SessionUtil</servlet-class> </servlet> <servlet-mapping> <servlet-name>SessionUtil</servlet-name> <url-pattern>/SessionUtil</url-pattern> </servlet-mapping> <filter> <filter-name>cacheFilter</filter-name> <filter-class>com.gaic.lpsr.utilclasses.NoCacheFilter.java</filter-class> </filter> <filter-mapping> <filter-name>cacheFilter</filter-name> <servlet-name>FacesServlet</servlet-name> </filter-mapping> </web-app>

My filter class is

package com.gaic.lpsr.utilclasses; import java.io.IOException; import javax.faces.application.ResourceHandler; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class NoCacheFilter implements Filter { @Override public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException { HttpServletRequest request = (HttpServletRequest) req; HttpServletResponse response = (HttpServletResponse) res; if (!request.getRequestURI().startsWith(request.getContextPath() + ResourceHandler.RESOURCE_IDENTIFIER)) { // Skip JSF resources (CSS/JS/Images/etc) response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1. response.setHeader("Pragma", "no-cache"); // HTTP 1.0. response.setDateHeader("Expires", 0); // Proxies. } chain.doFilter(req, res); } @Override public void destroy() { // TODO Auto-generated method stub } @Override public void init(FilterConfig arg0) throws ServletException { // TODO Auto-generated method stub } // ... }

have included the jar servlet-api-2.5.jar.When i try to deploy app in tomcat server(version 6.0.29) i am getting the below error.

SEVERE: Exception starting filter cacheFilter java.lang.ClassNotFoundException: com.gaic.lpsr.utilclasses.NoCacheFilter.java at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:269) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:785) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445) at org.apache.catalina.core.StandardService.start(StandardService.java:519) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:581) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Feb 6, 2014 7:32:17 AM org.apache.catalina.core.StandardContext start SEVERE: Error filterStart

Please guide me how to fix this problem.

I have one row editable datatable.I have implemented email validation to one of the column where error message must display on blur of email field.This is working fine.I have a dialog with form to be displayed in the same page .Validation is implemented to this form also with on blur event.The dialog validation message gets displayed on blur but along with that the main form also displays the same validation message.This should not happen.

Any idea on how to fix this problem?

JSF page

<h:form id="lpcForm"> <div id="content"> <p:commandLink id="cmdLinkDelete" value="Delete" style="font-size:15px;padding-left:15px;" ajax="true" action="#{lpcBean.deleteRecords}" update=":lpcForm:lpcDataTable" />    <p:commandLink id="cmdLinkAdd" value="Add" style="font-size:15px;" onclick="dlg.show()" /> <p:messages id="lpcInfoMsg" for="lpcInfoMessages" showDetail="true" autoUpdate="true" closable="true" /> <p:messages id="lpcErrMsg" showDetail="false" redisplay="false" styleClass="messagesClass" autoUpdate="true" closable="true" /> <p:dataTable var="lpcData" id="lpcDataTable" widgetVar="lpcTable" value="#{lpcBean.lpcItems}" selection="#{lpcBean.selectedRows}" editable="true" scrollable="true" scrollWidth="80%" rowKey="#{lpcData.LPCID}" rendered="true" scrollHeight="75% important!" resizableColumns="true" tableStyle="table-layout:auto;width:100% important!; height:100% important!;padding-left:15px important!;" styleClass="datatable"> <p:ajax event="rowEdit" listener="#{lpcBean.onEdit}" /> <p:ajax event="rowEditCancel" listener="#{lpcBean.onCancel}" /> <p:column selectionMode="multiple" style="width:15px" /> <p:column headerText="LPC ID" style="width:20px" sortBy="#{lpcData.LPCID}"> <h:outputText value="#{lpcData.LPCID}" /> </p:column> <p:column headerText="Email" style="width:75px" sortBy="#{lpcData.email_Address}"> <p:cellEditor> <f:facet name="output"> <h:outputText value="#{lpcData.email_Address}" /> </f:facet> <f:facet name="input"> <p:inputText value="#{lpcData.email_Address}" style="width:100%" label="emailAddress" validatorMessage="Invalid Email Format"> <f:validateRegex pattern="^[_A-Za-z0-9-\+]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9]+)*(\.[A-Za-z]{2,})$" /> <f:ajax event="blur" render=":lpcForm:lpcErrMsg" /> </p:inputText> </f:facet> </p:cellEditor> </p:column> . . . . . <p:column style="width:10px"> <p:rowEditor /> </p:column> </p:dataTable> <p:blockUI block="lpcDataTable" trigger="cmdLinkDelete,cmdLinkAdd"> LOADING<br /> <p:graphicImage value="/images/ajaxLoader.gif" /> </p:blockUI> </div> </h:form> <p:dialog header="Add LPC" id="lpcDlg" widgetVar="dlg" rendered="true" appendToBody="true" resizable="true" modal="true"> <h:form id="addLpc"> <div align="center"> <p:messages id="lpcDlgMsg" showDetail="false" autoUpdate="true" closable="true" /> <h:panelGrid id="addLpcForm" columns="2" appendToBody="true"> <h:outputText value="LPC ID" /> <p:inputText id="lpcId" value="#{lpcBean.lpcId}" required="true"> <f:ajax event="blur" render="lpcDlgMsg" /> </p:inputText> . . . . . </h:panelGrid> </div> <div align="center"> <p:commandButton id="submitButton" value="Submit" ajax="true" update=":lpcForm:lpcDataTable" action="#{lpcBean.formSubmit}" oncomplete="dlg.hide()" /> <p:commandButton id="cancelButton" value="Cancel" ajax="true" onclick="dlg.hide()" /> </div> </h:form> </p:dialog>

The message with id lpcErrMsg is the one that i am displaying on blur in the main page when email format is wrong.And this message gets displayed with dialog field validation also although i have never referred to this id to be rendered in the dialog.

The message with id lpcDlgMsg is the message that i am displaying inside the dialog with widgetvar dlg on blur.As of now i have implemented blur event validation for the first required field in the dialog.

Is there any way using which we can catch the live scrolling event each time we reach the end of scrolling and new set of records get loaded in the datatable.This would be very helpful to make some customizations similar to what we can do with sort,row select events.

I was using managed bean which is of Request scoped,the reason why i used this scope was,i was getting java.io.NotSerializableException: com.microsoft.sqlserver.jdbc.SQLServerConnection.Now when i change to Viewscoped by declaring connection variable as transient (i have declared Datamodel object lpInfoList as also transient since i was getting NotSerializableException for DataModel object after i made connection variable as transient). Now for any selection operation i am getting exception as DataModel must implement org.primefaces.model.SelectableDataModel when selection is enabled or you need to define rowKey attribute and the row selection and check box selection events are not getting recognized.

Is it because i am putting all JDBC code inside managed bean,the viewscoped is not working?What should i need to do now in order to make this work?

Thanks Tim for your reply.I tried using getRowIndex() by catching both check box and row selection events but each time i am getting -1 as the index.With getRowData i am getting exception "javax.faces.model.NoRowAvailableException at javax.faces.model.ListDataModel.getRowData(ListDataModel.java:150)" .Below is my code snippet .

Ajax events:
<p:ajax event="rowSelectCheckbox" listener="#{workSpaceBean.onCheckBoxSelect}" /> <p:ajax event="rowSelect" listener="#{workSpaceBean.onCheckBoxSelect}" />
in managed bean
public void onCheckBoxSelect(SelectEvent event) { System.out.println("check box checked"); DataTable objDataTable = (DataTable) event.getSource(); System.out.println("Selected checkbox row index: "+objDataTable.getRowIndex()); //objDataTable.getRowData(); }
When i try to retrieve lpInfoList.getRowIndex() any where in the bean it always gives 0.lpinfoList is the DataModel object wrapped by ListDataModel.
Please suggest how to get this functionality.

Thanks Tim for the reply.IpInfoList is indeed wrapped by ListDataModel,i have given bad naming convention.Can you please guide me where i need to invoke getCurrentRow method to get the row number of selected record,since i couldnot find that.

I have a primefaces datatable i need to display (selected row number) of (total number of rows) in the JSF page.I could get the row numbers displayed in one of the columns using rowIndexVar attribute but i am not getting any idea to display the same numbers separately in the input text on row select.

What should i need to do in JSF page or managed bean to get selected row number.

Please help me in this regard.

Below is my JSF page

<p:dataTable id="workSpaceList" var="data" value="#{workSpaceBean.lpInfoList}" widgetVar="multiSelection" selection="#{workSpaceBean.selectedRows}" resizableColumns="true" liveScroll="true" scrollRows="55" scrollWidth="85%" scrollHeight="81%" styleClass="datatable" scrollable="true" rowIndexVar="rowIndex" filteredValue="#{workSpaceBean.filteredWorkSpaceItems}"> <p:column selectionMode="multiple" style="width:3%" /> <p:column headerText="#" style="width:3%"> #{rowIndex+1} </p:column> <p:column headerText="Insured" filterBy="#{data.insuredName}" sortBy="#{data.insuredName}" style="width:24%"> <h:outputText value="#{data.insuredName}" /> <!-- style="width:250px" --> </p:column> <p:column headerText="City" filterBy="#{data.custAddress_City}" sortBy="#{data.custAddress_City}" style="width:12%"> <h:outputText value="#{data.custAddress_City}" /> </p:column> . . . . </p:dataTable>