Button Condition Failing To Work

Hi,
I use the following in a 'PL/SQL Function Body Returning A Boolean' condition to determine whether or not the button is displayed:
BEGIN
IF :P33_PRIVILEGE != -1 AND :P33_PRIVILEGE_LEVEL != 'NIL' THEN
return true;
ELSE
return false;
END IF;
END;
:P33_PRIVILEGE and :P33_PRIVILEGE_LEVEL are 'Select List' items, where -1 and 'NIL' are the null values. So basically, unless someone has selected items from these two select lists the button should be hidden.
But it doesn't work, the button is always hidden.
What I don't understand is the exact same funtion is used on a Shuttle item on the same page, and that hides and displays as expected.
Any ides why it doesn't work with buttons?
Cheers
Simon

Hi,
I posted a page on apex.oracle.com - and it worked as expected.
I cpoied the PL/SQL code from there onto my own page, and that started working as expected.
Maybe I had a spelling mistake somewhere that i missed, but double checked it so many times.
Anyway thanks for replying to my post.
Cheers
Simon

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Hi,
If I did understand what you like have this might work
var lVal = $v('P22_REQUEST_CLASS_CODE');
$('#P22_REQUEST_CLASS_CODE input:not([value="' + lVal + '"])').attr("disabled","disabled");Regards,
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http://dbswh.webhop.net/dbswh/f?p=BLOG:HOME

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Runtime Errors         RAISE_EXCEPTION
Date and Time          16.05.2008 10:33:21
Short text
Exception condition "FAILED" raised.
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If the error occures in a non-modified SAP program, you may be able to
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or
"CL_POSITIONSERVICE_TRQ========CP" "FAILED"
or
"RKLNACHT " "FAILED"
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1. The description of the current problem (short dump)
To save the description, choose "System->List->Save->Local File
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2. Corresponding system log
Display the system log by calling transaction SM21.
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SAP-Release 700
Application server... "tetradev"
    Network address...... "192.168.1.81"
    Operating system..... "SunOS"
    Release.............. "5.9"
    Hardware type........ "sun4u"
    Character length.... 16 Bits
    Pointer length....... 64 Bits
    Work process number.. 0
    Shortdump setting.... "full"
Database server... "tetradev"
    Database type..... "ORACLE"
    Database name..... "DEV"
    Database user ID.. "SAPSR3"
Char.set.... "C"
SAP kernel....... 700
    created (date)... "Aug 31 2006 20:59:23"
    create on........ "SunOS 5.9 Generic_117171-13 sun4u"
    Database version. "OCI_102 (10.2.0.2.0) "
Patch level. 75
Patch text.. " "
Database............. "ORACLE 9.2.0.., ORACLE 10.1.0.., ORACLE 10.2.0.."
    SAP database version. 700
    Operating system..... "SunOS 5.9, SunOS 5.10"
Memory consumption
Roll.... 16192
EM...... 16759392
Heap.... 0
Page.... 180224
MM Used. 10608952
MM Free. 1957592
User and Transaction
Client.............. 300
    User................ "DARLINGTON"
    Language key........ "E"
    Transaction......... "KLNACHT "
    Program............. "CL_POSITIONSERVICE_TRQ========CP"
    Screen.............. "SAPMSSY0 1000"
    Screen line......... 6
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Line      SourceCde
7              l_selector         TYPE REF TO cl_flow_selector_dif,
    8      * workarea for table with positions
    9              l_tab_position     TYPE trqy_position_obj,
   10              l_position         TYPE REF TO if_position_trq,
   11              l_count            type i.
   12
13      * initialization
14        CLEAR re_tab_position.
   15
16      * Get positions for ranges
   17        CALL METHOD ca_pos_identifier_dif=>agent->get_persistent_by_range
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19            im_context     = trqco_con_trq
   20            im_ranges      = im_ranges
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22            re_identifiers = l_tab_identifier.
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25        LOOP AT l_tab_identifier INTO l_identifier.
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27          l_selector = l_identifier->derive_selector( ).
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29      *   get TRQ positions for selectors
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   31            EXPORTING
32              im_selector      = l_selector
   33            RECEIVING
34              re_tab_positions = l_tab_position.
   35          DESCRIBE TABLE l_tab_position LINES l_count.
   36          IF l_count <> 1.
>>>>>            raise failed.
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39          APPEND LINES OF l_tab_position TO re_tab_position.
   40        ENDLOOP.
41
42      ENDMETHOD.
Contents of system fields
Name          Val.
SY-SUBRC      0
SY-INDEX      0
SY-TABIX      2
SY-DBCNT      1
SY-FDPOS      0
SY-LSIND      0
SY-PAGNO      0
SY-LINNO      1
SY-COLNO      1
SY-PFKEY
SY-UCOMM
SY-TITLE      End-of-Day Processing
SY-MSGTY      E
SY-MSGID      64
SY-MSGNO      030
SY-MSGV1
SY-MSGV2
SY-MSGV3
SY-MSGV4
SY-MODNO      0
SY-DATUM      20080516
SY-UZEIT      103319
SY-XPROG      SAPLSBAL_DB
SY-XFORM      %_CONTROL_EXIT_DYNPRO
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Assistance will be appreciated.

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