Trying to opn SAP Transaction IView from Webdynpro

Hi Friends,
I need to open a SAP Trancation Iview from Webdynpro (on click of some button) and pass some values to the screen fields,
I am using the code below(which I found in many threads):
WDPortalNavigation.navigateAbsolute("ROLES://<Iview ID excluding pcd>",
WDPortalNavigationMode.SHOW_INPLACE,
(String)null,
(String)null,
WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS,
(String)null,
(String)null,
(String)null);
The problem is nothin happened on account of execution of this code,
I mean not even a blank screen gets opened.
I am not even getting any error/exception.
Please advice what could be the possible cause.
Regards
Deepak
Edited by: Deepak Gupta on Mar 17, 2008 12:15 PM

I wrote the code like below:
WDPortalNavigation.navigateAbsolute("ROLES://<IViewPath>", WDPortalNavigationMode.SHOW_EXTERNAL,
(String)null,
(String)null,
WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS,
(String)null,
(String)null,
"number=123456");
In IView application property, I wrote:
CRMT_SEARCH_LOC-CARD_NO=<Request.number>
(L.H.S is the screen field name)
then I got following exception at portal:
An exception occurred while processing a request for :
iView : pcd:portal_content/<Iview path>
Component Name : com.sap.portal.appintegrator.sap.Transaction
Exception in SAP Application Integrator occured: Unable to process template 'CRMT_SEARCH_LOC-CARD_NO=<Request.number>', because 'number' is an invalid terminal property of context 'Request.'..
what went wrong????

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