Show/Hide a column in a Table region

Question

I have search page which queries the data and displays the records in a table region. We need to have an option to show or hide a non-database column at the end of the each row in the table. If the checkbox is selected, the last column should appear and if checkbox is deselected it should get disappeared.
I have used a transient attribute in the VO and using that transient attribute trying to show the text field when the checkbox is selected. For ex, if the search returns 6 rows - if you select the checkbox of the first row , the last column "CTS" gets displayed without any issues but if you select the other rows (without checking the first row), the CTS column is not displayed.
The column is getting displayed only IF you select the checkbox of the first row and try it other rows. If you try to select the checkbox of other rows without selecting the 1st row, it doesnt show the CTS column.
AM has the PPR event
=============
public void CheckOnClick(String v_chkBox,String SalesContact,Boolean executeQuery)
System.out.println("Enters Checkbox event()");
USSContactMainVOImpl pVO= getUSSContactMainVO1();
Row poRow[]=pVO.getFilteredRows("Chkbox","Y"); // get all the selected rows
for(int i=0;i<poRow.length;i++ )
Row rowi=poRow;
System.out.println("Value:" + rowi.getAttribute("Chkbox") );
rowi.setAttribute("CTSEngineer_TR",Boolean.TRUE); // transient attr
//end of CheckOnClick()

Answer 1

I just referred to the Dev Guide and understand that we can use the identifier of the PPR event source row (Page 262) but still the issue persists.
String rowReference = pageContext.getParameter(OAWebBeanConstants.EVENT_SOURCE_ROW_REFERENCE);
I have a rawtext as the first column( its just a dummy column since the PPR event is not getting fired if the checkbox is the 1st control/column) and the 2nd column is the check box which has a PPR event. The PPR event fires whenever the check box is selected or deselected but surprising the text field gets editable only if the 1st row is clicked.
Changed code is as always - not sure why the table shows/hides the text column only if the 1st column is selected. Will appreciate any help.
PFR:
===
if ("OnSelect".equals(pageContext.getParameter(OAWebBeanConstants.EVENT_PARAM)))
OAApplicationModule am = pageContext.getApplicationModule(webBean);
System.out.println("The AM name is "+am);
Boolean executeQuery = BooleanUtils.getBoolean(false);
String str1 = pageContext.getParameter("Check_Box");
String v_SalesContact = pageContext.getParameter("SalesContact_qry");
//1401
String rowReference = pageContext.getParameter(OAWebBeanConstants.EVENT_SOURCE_ROW_REFERENCE);
Serializable[] parameters = {str1,v_SalesContact,rowReference,executeQuery };//1401
Class[] paramTypes = { String.class,String.class,String.class,Boolean.class };//1401
am.invokeMethod("CheckOnClick",parameters,paramTypes);
AM(PPR Event)
==========
public void CheckOnClick(String v_chkBox,String SalesContact,String rowReference,Boolean executeQuery)
OARow rowx = (OARow)findRowByRef(rowReference);
if (rowx !=null){
System.out.println("row ref");
System.out.println("reo fref"+ rowx.getAttribute("CTSEngineer_TR") );
rowx.setAttribute("CTSEngineer_TR",Boolean.TRUE);
Edited by: MyOAF on Jan 14, 2010 6:25 AM
Edited by: MyOAF on Jan 14, 2010 6:26 AM