About excel export for WD!

Question

i 've seen the thread  <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/edc2f3c2-0401-0010-8898-acd5b6a94353"><b>web dynpro Binary Cache</b></a>.
<b>i have to got some changes for requirement:</b>
  <b>1.></b>i don't wanna to open a new URL page and a download dialog windows(open/save/cancel option buttion) when i  click excel URL file.i hope it only to pop the download dialog windows;
  <b>2.></b> after i download the excel file to my local computer.i don't wanna to select some options(1.As a XML list;2.As a read-only workbook) to open it.i hope i can open it directly by click the *.xls file.
  <b>3.></b>i don't know how to change the column name for excel file. Liking some blank-letter maybe appear in  the column name. e.g.: <b>First Name</b> not <b>FirstName</b>.
    looking forward to u reply.thanks in advance!

Answer 1

Point 2 and Point 3 are solvable in the following way.
Refer the Web Dynpro Binary Cache and there are minute changes that needs to be done.
Implement the following methods:
exportToCSV
  public void exportToCSV( com.sap.tc.webdynpro.progmodel.api.IWDNode dataNode, java.util.Map columnInfos )
    //@@begin exportToCSV()
     byte[] excelCSVFile;
     IWDCachedWebResource cachedExcelResource = null;
     String fileName = dataNode.getNodeInfo().getName() + ".csv";
     try
          excelCSVFile = toExcelCSV(dataNode, columnInfos).getBytes("UTF-8");
          cachedExcelResource = getCachedWebResource(excelCSVFile, fileName, WDWebResourceType.getWebResourceType("csv", "application/ms-excel"));
          if(cachedExcelResource != null)
               wdContext.currentContextElement().setExcelFileURL(cachedExcelResource.getURL());
               wdContext.currentContextElement().setExcelFileName(cachedExcelResource.getResourceName());
               openExcelLinkPopup();
          }else{
               wdComponentAPI.getMessageManager().reportException("Failed to create Excel file from table !",true);
     catch(UnsupportedEncodingException e)
          wdComponentAPI.getMessageManager().reportException(e.getLocalizedMessage(),true);
     catch(WDURLException e)
          wdComponentAPI.getMessageManager().reportException(e.getLocalizedMessage(),true);
    //@@end
To Excel CSV
  public String toExcelCSV( com.sap.tc.webdynpro.progmodel.api.IWDNode dataNode, java.util.Map columnInfos )
     StringBuffer x = new StringBuffer();
     String attributeName, headerName;
     //trimHeaderTexts(columnInfos);
     for(Iterator iter = columnInfos.keySet().iterator(); iter.hasNext();)
          attributeName = (String) iter.next();
          headerName = (String) columnInfos.get(attributeName);
          x.append(headerName)
           .append(",");
     x.append("n");
     for(int i = 0; i< dataNode.size(); ++i)
          IWDNodeElement dataNodeElement = dataNode.getElementAt(i);
          for(Iterator iter = columnInfos.keySet().iterator(); iter.hasNext();)
               attributeName = (String) iter.next();
               x
                .append(dataNodeElement.getAttributeValue(attributeName))
                .append(",");
          x.append("n");
     wdComponentAPI.getMessageManager().reportSuccess(x.toString());
     return x.toString();
Regards,
Subramanian V.