Hide the submit button programatically

Question

Hi Friends,
i have standard page , in that, submit button is rendering programatically,i want to hide that submit button. do i need to extend standard controller to hide the submit button? here below code i have to hide the Activate button. can any one give guide to achive this solution.
standard controller process request code....
public void processRequest(OAPageContext oapagecontext, OAWebBean oawebbean)
super.processRequest(oapagecontext, oawebbean);
NegotiationCreationAM negotiationcreationam = (NegotiationCreationAM)oapagecontext.getApplicationModule(oawebbean);
String s = getCurrentStepCode(oapagecontext, oawebbean);
if(oapagecontext.isLoggingEnabled(1))
oapagecontext.writeDiagnostics(getClass().getName() + ".processRequest ", " currentStepCode " + s, 1);
mIsReviewPage = "Review".equals(s);
mIsItemDetailPage = "ItemDetail".equals(s);
mIsHeaderPage = "Header".equals(s);
mIsViewNetChangesPage = "ViewNetChanges".equals(s);
mIsUpdatePfValuesPage = "UpdatePfValues".equals(s);
if(!negotiationcreationam.isTemplate() || negotiationcreationam.isTemplate() && !mIsReviewPage)
OAWebBean oawebbean1 = oawebbean.findChildRecursive("SaveTemplateBtn");
oawebbean1.setRendered(false);
OAWebBean oawebbean8 = oawebbean.findChildRecursive("Activate");
oawebbean8.setRendered(false);
if(negotiationcreationam.isTemplate())
OAWebBean oawebbean2 = oawebbean.findChildRecursive("SaveBtn");
oawebbean2.setRendered(false);
if(mIsReviewPage)
OASubmitButtonBean oasubmitbuttonbean = (OASubmitButtonBean)oawebbean.findChildRecursive("Activate");
oasubmitbuttonbean.setRendered(true);
String s1 = null;
if("ACTIVE".equals(negotiationcreationam.getTemplateStatus()))
s1 = oapagecontext.getMessage("PON", "PON_TEMP_INACTIVATE", null);
else
s1 = oapagecontext.getMessage("PON", "PON_TEMP_ACTIVATE", null);
oasubmitbuttonbean.setLabel(s1);
oasubmitbuttonbean.setText(s1);
if(!mIsHeaderPage || negotiationcreationam.isTemplate())
OAWebBean oawebbean3 = oawebbean.findChildRecursive("ApplyTemplateBtn");
oawebbean3.setRendered(false);
if(!mIsUpdatePfValuesPage)
OAWebBean oawebbean4 = oawebbean.findChildRecursive("ApplyPfValuesBtn");
oawebbean4.setRendered(false);
if(mIsReviewPage)
setPageBtnsForReviewPage(oapagecontext, oawebbean);
if(!negotiationcreationam.isTemplate())
setEditButtons(oapagecontext, oawebbean);
if(negotiationcreationam.isAmendment() || negotiationcreationam.isMultiRoundDocument())
OAWebBean oawebbean5 = oawebbean.findChildRecursive("ReviewChangesBtn");
oawebbean5.setRendered(true);
if(mIsViewNetChangesPage)
setPageBtnsForReviewPage(oapagecontext, oawebbean);
OAWebBean oawebbean6 = oawebbean.findChildRecursive("EditBtn");
oawebbean6.setRendered(mDocIsEditable);
OAWebBean oawebbean9 = oawebbean.findChildRecursive("ViewDocumentBtn");
oawebbean9.setRendered(true);
OAWebBean oawebbean7 = oawebbean.findChildRecursive("OkBtn");
oawebbean7.setRendered(mIsItemDetailPage);
OAWebBean oawebbean10 = oawebbean.findChildRecursive("ReviewBtn");
oawebbean10.setRendered(!mIsItemDetailPage && !mIsUpdatePfValuesPage && !mIsReviewPage && !mIsViewNetChangesPage);
if(!mIsItemDetailPage && !mIsUpdatePfValuesPage && !mIsReviewPage && !mIsViewNetChangesPage)
addSideBar(oapagecontext, s, negotiationcreationam.isTemplate());
private void setEditButtons(OAPageContext oapagecontext, OAWebBean oawebbean)
if(oapagecontext.isLoggingEnabled(1))
oapagecontext.writeDiagnostics(getClass().getName() + ".setEditButtons ", " mDocIsEditable " + mDocIsEditable, 1);
if(!mDocIsEditable)
OAWebBean oawebbean1 = oapagecontext.getPageLayoutBean().findChildRecursive("HeaderEditButton");
oawebbean1.setRendered(false);
oawebbean1 = oapagecontext.getPageLayoutBean().findChildRecursive("ItemsEditButton");
oawebbean1.setRendered(false);
oawebbean1 = oapagecontext.getPageLayoutBean().findChildRecursive("ControlsEditButton");
oawebbean1.setRendered(false);
oawebbean1 = oapagecontext.getPageLayoutBean().findChildRecursive("ContractsEditButton");
if(oawebbean1 != null)
oawebbean1.setRendered(false);
oawebbean1 = oapagecontext.getPageLayoutBean().findChildRecursive("SuppliersEditButton");
oawebbean1.setRendered(false);
Thanks in advance,
vamshi

Answer 1

Vamshi,
Extending CO would anyways be required in either of the approach. Now let me brief you which approach you can use :
1) If you need to hide the submit button while rendering of page, based on some logic, you can ahead with your approach extending the CO and in process request get refrence of submitbutton bean and use API, setRendered(false);
2) If this button needs to be hidden on some logic on a post event on the page i.e. in process form request, its better to have a tranient attribute and a PVO approach u worked on tutorial.
Apprach 1 can be used in case 2 also but in that case you would have do an extra looping on the page, by redirecting to same page retaining the AM. I hope this helps up to decide the approach.
--Mukul