By clicking on a button i want a message

Hi,
there are only two fields in my view, one is label and the other one is button. i want to get a message with help of the "Message pool" by clocking on the button. could any body help me out with the code.
thanks
Suresh

Hi SureshKumar Arumugham
Open the Message Pool edit the following details
MessageKey = ButtonClicked
MessageType = standard
Message Text = You had Clicked the Button times.
Now Create a Button in the and also create an action for that button.( eg Show_Message).
Inside The Action write this code...
public void onActionShow_Message(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
 //@@begin onActionShow_Message(ServerEvent)
 i=i+1;
 wdComponentAPI.getMessageManager().reportMessage(IMessageTest_Button_App.BUTTON_CLICKED,new Object[] {" "+i},false);
 //@@end
Declare a variable " i " Globally
/** You will find this at the end of the coding page ***/
//@@begin others
int i = 0;
//@@end
Now Execute Your Application
The output will be in such a way that how many times you had clicked the button.......
Regards
Chandran S

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Hi Expert,
I need help.
I created a custom button to download data to an excel sheet. after clicking the button I am getting message
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package com.cpr.cprwec.app.comm.module.ebpp.ui.handler.impl;
import com.cpr.cprwec.app.comm.module.ebpp.backendobject.interf.EbppBackend;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import javax.faces.context.FacesContext;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import com.cpr.cprwec.app.comm.module.ebpp.modulemgmt.impl.EbppModuleAccessImpl;
import com.cpr.cprwec.app.comm.module.ebpp.modulemgmt.interf.EbppModuleAccess;
import com.cpr.cprwec.app.comm.module.ebpp.ui.dto.impl.DisputeDataDTOImpl;
import com.cpr.cprwec.app.comm.module.ebpp.ui.dto.impl.OpenItemDTOImpl;
import com.cpr.cprwec.app.comm.module.ebpp.ui.dto.interf.DisputeDataDTO;
import com.cpr.cprwec.app.comm.module.ebpp.ui.dto.interf.OpenItemDTO;
import com.cpr.cprwec.app.comm.module.ebpp.ui.dto.impl.BITDataDTOImpl;
import com.cpr.cprwec.app.comm.module.ebpp.ui.dto.interf.BITDataDTO;
import com.cpr.cprwec.app.comm.module.ebpp.ui.dto.impl.BITDetailDTOImpl;
import com.cpr.cprwec.app.comm.module.ebpp.ui.dto.interf.BITDetailDTO;
import com.sap.wec.app.common.module.common.attachment.businessobject.interf.Attachment;
import com.sap.wec.tc.core.backend.sp.jco.JCoConnection;
import com.sap.wec.tc.core.businessobject.BusinessObjectException;
import com.sap.wec.tc.core.common.exceptions.ApplicationBaseRuntimeException;
import com.sap.wec.tc.core.common.logging.WCFLocation;
import com.sap.wec.tc.core.common.searching.businessobject.impl.GenericSearch;
import com.sap.wec.tc.core.common.searching.businessobject.interf.GenericSearchReturnResultData;
import com.sap.wec.tc.core.common.util.GenericFactory;
import com.sap.wec.tc.core.common.util.Message;
import com.sap.wec.tc.core.common.util.MessageList;
import com.sap.wec.tc.core.common.util.table.Table;
import com.sap.wec.tc.core.common.util.table.TableRow;
import com.sap.wec.tc.core.modulemgmt.ForeignModuleAccess;
import com.sap.wec.tc.core.modulemgmt.ModuleAccess;
import com.sap.wec.tc.core.modulemgmt.exceptions.ModuleInactiveException;
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 ViewComponentHandlerBaseImpl<EbppModuleAccess> {
 protected static final WCFLocation LOCATION = WCFLocation
 .getInstance(BITDetailViewVCHandler.class.getName());
 public BITDataDTO bitDataDTO;
 public BITDetailDTO bitDetailDTO;
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 public List<BITDetailDTO> BITDetailDTOList;
 public boolean noBITData;
 public boolean noBITDetail;
 public boolean renderPanel = true;
 public boolean isDownloadBITData;
 public boolean isDownloadBITDetail;
 public boolean downloadStarted=false;
 public boolean BITFound =false;
 public boolean isBITFound() {
 return BITFound;
 public void setDownloadStarted( boolean downloadStarted ){
 this.downloadStarted = downloadStarted;
 public boolean getDownloadStarted(){
 return this.downloadStarted;
 public void setBITFound(boolean BITFound) {
 this.BITFound = BITFound;
 public String getObjectID() {
 return objectID;
 public void setObjectID(String objectID) {
 this.objectID = objectID;
 public List<BITDataDTO> getBITDataDTOList() {
 return BITDataDTOList;
 public List<BITDetailDTO> getBITDetailDTOList() {
 return BITDetailDTOList;
 public Boolean getNoBITData() {
 return noBITData;
 public Boolean getNoBITDetail() {
 return noBITDetail;
 public Boolean getRenderPanel() {
 return renderPanel;
 private static final int DEFAULT_BUFFER_SIZE = 1024000;
 public Attachment attachmentData;
 public Attachment getAttachmentData() {
 return attachmentData;
 @RequestParameterBinding(maxLength = 1024)
 protected String objectID;
 @BuildTime
 public String processBuildTime() throws BusinessObjectException {
 BIT BIT = null;
 noBITData = noBITDetail = false;
 renderPanel = true;
 if (isLoggedIn()) {
 if ( isDownloadBITData == true ){
 this.downloadBITDataExcel();
 else {
 this.getModuleAccess().getBITBO().clearMessages();
 BIT = this.moduleAccess.getBITBO().getBITFromBackend(objectID);
 BITDataDTOList = BIT.getBITDataDTOList();
 BITDetailDTOList = BIT.getBITDetailDTOList();
 MessageList objectData = this.getModuleAccess().getBITBO()
 .getMessageList();
 if (objectData.size() > 0) {
 noBITData = noBITDetail = true;
 renderPanel = false;
 this.addMessageList(objectData);
 return checkLoginCondition();
 private boolean isLoggedIn() {
 return checkLoginCondition() == null;
 private String checkLoginCondition() {
 NavigationCondition navCondition = getNavigationCondition("login");
 if (!navCondition.isFullfiled()) {
 navCondition.addToNavigationStack();
 return navCondition.getOutcome();
 return null;
 public String downloadBITData(){
 downloadStarted = true;
 isDownloadBITData = true;
 downloadBITDataExcel();
 return checkLoginCondition();
 public void downloadBITDataExcel() {
 // dummyDebug("downloadBITDataExcel", BITDataDTOList.size(), "", "" );
 if (BITDataDTOList.size() > 0) {
 try {
 attachmentData = this.getModuleAccess().getDownloadBO()
 .getBITDataExcel(BITDataDTOList);
 if (attachmentData != null) {
 FacesContext faces = FacesContext.getCurrentInstance();
 HttpServletResponse response = (HttpServletResponse) faces
 .getExternalContext().getResponse();
 response.reset();
 response.setContentType(attachmentData
 .getAttachmentMimeType());
 response.setContentLength(attachmentData
 .getAttachmentContent().length);
 response.setHeader("Content-disposition",
 "attachment;filename="
 + attachmentData.getAttachmentName());
 response.setBufferSize(DEFAULT_BUFFER_SIZE);
 ServletOutputStream out;
 try {
 out = response.getOutputStream();
 out.write(attachmentData.getAttachmentContent());
 out.flush();
 faces.responseComplete();
 } catch (IOException e) {
 throw new ApplicationBaseRuntimeException(
 "Problem opening file", e);
 } finally {
 attachmentData = null;
 } catch (BusinessObjectException e) {
 e.printStackTrace();
 isDownloadBITData = false;

Thanks Hamendra for checking the issue.
I am setting up breakpoints in WCEM, tab JAVA EE then from menu RUN->Toggle brekpoints and then debug configuration.
the breakpoints are in several places in handler class BITDetailviewVCHandler class including method downloadBITData.
this method I am calling from BitContentview.XHTML
<wec:commandButton id="bdtexcel" immediate="true" actionListener="#{cc.vch.DownloadBITData}" type="submit" value="#{i18n['invoices.ui.openitems.printSelected']}"/>
When the BIT page is loading the control stops at the breakpoint.
but it is not stopping there when i click the 'Excel Download' button.
How do I get the log file. I am very new to WCEM, please guide me.
I tried to debug the UI using Google chrome. it is giving me the following error.
POST https://<>/<>/<>/<>HomePage.jsf?wec-appid=<>MAINAPP6&wec-locale=en_US 500 (Internal Server Error)
when I expand the node
c.event.trigger:<>/<>/javax.faces.resource/sap/comp.theme/templates/jquery/lib/jquery-1.4.2.min.js.jsf:54
c.event.trigger:<>/<>/javax.faces.resource/sap/comp.theme/templates/jquery/lib/jquery-1.4.2.min.js.jsf:54
c.event.trigger:<>/<>/javax.faces.resource/sap/comp.theme/templates/jquery/lib/jquery-1.4.2.min.js.jsf:66
(anonymous function):<>/<>/javax.faces.resource/sap/comp.theme/templates/jquery/lib/jquery-1.4.2.min.js.jsf:30
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By clicking on a button i want a message

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