How i hide a field of a custom view in OAF 11

Question

Hi, im a new developer of OAF11.
What should I do, to customize the Purchase Order screen, if then the requirement is to hide the field that i insert from extended VO.
What I did was modify the XML of the page to add the field and then extended the original AM.
I added the extended view into the custom AM to prevent that fail with the field that i insert.
I must clarify that I modify the path of AM default for the path of the custom AM in the XML, then i upload the XML with the command import, and i see it the field in the page.
I tried to hide another field that i created by customizing the page, but I couldnt do. That´s why i insert directly the field in the XML original.
I Try to customize the driver involved with the page, but nothing happened.
First try it on the controller Father and after the son.
The page is in the POS module (iSupplier), and is POSVIEWPOG (PO Details).
The code that attempts to hide the field is:
OAApplicationModule am = paramOAPageContext.getApplicationModule(paramOAWebBean);
OAViewObject oaviewobject1 =(OAViewObject)am.findViewObject("PosViewHeadersVO");
if (oaviewobject1 != null)
OARow row = (OARow)oaviewobject1.getCurrentRow();
String vCustomType = (String)row.getAttribute("TypeName");
if (vCustomType.equals("Blanket Agreement"))
OAMessageStyledTextBean vHideField = (OAMessageStyledTextBean)paramOAWebBean.findChildRecursive("drbQuantity");
vHideField.setRendered(true);
else
OAMessageStyledTextBean vHideField = (OAMessageStyledTextBean)paramOAWebBean.findChildRecursive("drbQuantity");
vHideField.setRendered(true);
Can anyone help me?
If im grong other solution that i think is:
How I can put a field on a page with code and how to hide the field with conditions?, consider that the field is from the VO extended.
Thanks!!!

Answer 1

Hi Yichao,
Chk these links
https://help.sap.com/saphelp_nw04/helpdata/en/5a/0c889a4d5911d2a5fb0000e82deaaa/content.htm
http://help.sap.com/saphelp_45b/helpdata/en/cf/21ec5d446011d189700000e8322d00/frameset.htm
thanks and regards
srikanth.p