Null reference when passing combobox as argument

I've got a function that takes a combobox as a parameter and then populates it. This works fine on 3 of my comboboxes, but not on any of the others. For all the others it says that they are null.
Function code is here:
protected function PopulateDateDropdowns():void
                PopulateMonths(cmbTDCTSinceMM);
                PopulateDays(cmbTDCTSinceDD);
                PopulateYears(cmbTDCTSinceYYYY);
                PopulateMonths(cmbEmpStartDateMM);
                PopulateDays(cmbEmpStartDateDD);
                PopulateYears(cmbEmpStartDateYYYY);
                PopulateMonths(cmbJEmpStartDateMM);
                PopulateDays(cmbJEmpStartDateDD);
                PopulateYears(cmbJEmpStartDateYYYY);
            private function PopulateDays(cb:spark.components.ComboBox):void
                var i:int;
                cb.dataProvider = new ArrayList();
                for(i=1; i<32; i++)
                    cb.dataProvider.addItem(i);
            private function PopulateMonths(cb:spark.components.ComboBox):void
                cb.dataProvider = new ArrayList();
                cb.dataProvider.addItem("Jan");
                cb.dataProvider.addItem("Feb");
                cb.dataProvider.addItem("Mar");
                cb.dataProvider.addItem("Apr");
                cb.dataProvider.addItem("May");
                cb.dataProvider.addItem("Jun");
                cb.dataProvider.addItem("Jul");
                cb.dataProvider.addItem("Aug");
                cb.dataProvider.addItem("Sep");
                cb.dataProvider.addItem("Oct");
                cb.dataProvider.addItem("Nov");
                cb.dataProvider.addItem("Dec");
            private function PopulateYears(cb:spark.components.ComboBox):void
                var i:int;
                var maxYear:int = new Date().getFullYear() - 18;
                cb.dataProvider = new ArrayList();
                for(i=1900; i<maxYear; i++)
                    cb.dataProvider.addItem(i);
Declaration of the comboboxes that fail is here:
                <mx:FormItem label="Employment Start Date: " direction="horizontal">
                    <s:ComboBox id="cmbEmpStartDateMM" width="60"/>
                    <s:ComboBox id="cmbEmpStartDateDD" width="60"/>
                    <s:ComboBox id="cmbEmpStartDateYYYY" width="100" />
                </mx:FormItem>
The only difference between these and the ones that work, is that these are declared inside a separate form and canvas. But I thought that all the script was global to the page elements.

Yes do have the creationComplete event for the ComboBoxes...you can make use of it and give it a try....
Thanks,
Bhasker Chari

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Message was edited by:
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Dear Thanga Raj K,
From your solution i can get my expected result, only within your solution you miss out the @ in line 32 for ToDate variable.
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For other user References code(Corrected):-
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without returning anything. But this does not affect
original objects. Is there any other way then obvious
(make changes to class wide objects) to do this thing?

[svn] 4619: Bug: BLZ-313 - HTTPProxyService throws null pointer when non-turnkey BlazeDS app is deployed to Tomcat 6 .0.16

Revision: 4619
Author: [email protected]
Date: 2009-01-22 10:47:12 -0800 (Thu, 22 Jan 2009)
Log Message:
Bug: BLZ-313 - HTTPProxyService throws null pointer when non-turnkey BlazeDS app is deployed to Tomcat 6.0.16
QA: Yes
Doc: No
Checkintests: Pass
Ticket Links:
http://bugs.adobe.com/jira/browse/BLZ-313
Modified Paths:
blazeds/trunk/modules/proxy/src/flex/messaging/services/HTTPProxyService.java

I submitted a bug, and this was fixed in the latest trunk
version.

Parameter type conflict from Toplink 11g when passing ArrayList as input

When passing ArrayList as an input to a StoredProcedureCall, I am getting the following stacktrace:
t] Exception [TOPLINK-4002] (Oracle TopLink - 11g Release 1 (11.1.1.0.0) (Build 080121)): oracle.toplink.exceptions.DatabaseException
[junit] Internal Exception: java.sql.SQLException: Parameter Type Conflict
[junit] Error Code: 17012
[junit] Call: BEGIN XL_SP_ASSIGN_EVENTLIST(?, usrName=>?, assignUsrkey=>?, assignGrpkey=>?); END;
[junit] bind => [null => eventIdList, FOO1, 117, 0]
[junit] Query: ValueReadQuery()
[junit] at oracle.toplink.exceptions.DatabaseException.sqlException(DatabaseException.java:295)
[junit] at oracle.toplink.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:724)
[junit] at oracle.toplink.internal.databaseaccess.DatabasePlatform.executeStoredProcedure(DatabasePlatform.java:1627)
[junit] at oracle.toplink.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:534)
[junit] at oracle.toplink.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:467)
Here is my code snippet to pass ArrayList as input parameter :
StoredProcedureCall spc = new StoredProcedureCall();
spc.setProcedureName(procedureName);
spc.addUnamedInOutputArgument("eventIdList", "eventIdList", Types.ARRAY,
"EVENTIDS", ArrayList.class);
String argLoggedInUsrName = "usrName";
String argAssignedUsrKey = "assignUsrkey";
String argAssignedGrpKey = "assignGrpkey";
spc.addNamedArgument(argLoggedInUsrName);
spc.addNamedArgument(argAssignedUsrKey);
spc.addNamedArgument(argAssignedGrpKey);
ValueReadQuery query = new ValueReadQuery();
query.setCall(spc);
query.addArgument("eventIdList");
query.addArgument(argLoggedInUsrName);
query.addArgument(argAssignedUsrKey);
query.addArgument(argAssignedGrpKey);
Vector args = new Vector();
ArrayList eventIdList = new ArrayList();
eventIdList.add(new Long(50000));
args.add(eventIdList);
args.add(loggedInUsrName);
args.add(assignedUsrKey);
args.add(assignedGrpKey);
eventIdList = (ArrayList) session.executeQuery(query, args);
This code chunk was working with an earlier build. Would really appreciate any inputs on the error seen.
Please note - the EVENTIDs type in the pl/sql procedure is defined as a VARRAY(100) of NUMBER

Well I posted a thread several weeks ago...see this thread below
trying to get used to sql*plus, running and creating a simple procedure
and someone made comments about the select query leading to sql injection. Now I am trying to understand the true case behind that. I have an idea made it is because of the first concatenation in the parameter or not. Not sure.

Workflow issue- Dereferencing of the NULL reference

Hello All,
I have an issue with sending mails to external e-mail ids through a workflow process. I am using the FM SO_DOCUMENT_SEND_API1 for sending mails. However, because of the latest Basis version I need to call this FM in a seperate task when the process is in BACKGROUND mode.
The current scenario is, my workflow will trigger a method, which internally call this FM in a seperate TASK. When I run the workflow/process I get an error in the method, which triggers this FM. The erro says "Dereferencing of the NULL reference"
Is this because of calling the FM in a seperate task, as the workflow already has a pre-defined TASK? if yes, how do we go about this?
Thanks,
Anil

Hello Anil,
I am facing a similar message when i am running the SAP standard workflow 18900044 for leave encashment. I am calling a class CL_HRPBSIN_HANDLE_LEREQ_WF and the method CALL_WORKFLOW.
Can you please tell me how you managed to solve your issue.
Regards,
Ritwik

Error: Dereferencing of the NULL reference

Dear Friends,
one of our user is running a report on web bex and he is getting following error.
com.sap.ip.bi.base.application.exceptions.AbortMessageRuntimeException:
Termination message sent ABEND RS_EXCEPTION (000): Dereferencing of the NULL reference
MSGV1: Dereferencing of the NULL reference
But when we run this with our user we are not getting any error.
if we run this report using RSRT usin user's user id it is not giving any error.
only genrating error when we try to run using Web Bex .
Any help hightly Appicated.
Malik

Thanks friends,
i already check the given sap note but that note is for support pack till17 and we have already 19 support level.
thats why this is not the solution.
second i check it publishing. its working fine with all the users except 3 of our users. i dont know why the error is
comming with them only.
and i also check the url no specific variable values.
any other idea.
regards
Naeem

Null reference when passing combobox as argument

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