Error when calling a popup window in the initial screen of an application

[senthil_kumar29]

Hi,

I am calling a popup window in the Initial screen to select the variant list.

I am getting an error reference to Null Object reference.

Here is the Error.

Runtime Errors OBJECTS_OBJREF_NOT_ASSIGNED_NO

Exception CX_SY_REF_IS_INITIAL

Date and Time 15.06.2007 10:00:16

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Short text

Access via 'NULL' object reference not possible.

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What happened?

Error in the ABAP Application Program

The current ABAP program "CL_WDR_MESSAGE_AREA===========CP" had to be

terminated because it has

come across a statement that unfortunately cannot be executed.

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What can you do?

Note down which actions and inputs caused the error.

To process the problem further, contact you SAP system

administrator.

Using Transaction ST22 for ABAP Dump Analysis, you can look

at and manage termination messages, and you can also

keep them for a long time.

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Error analysis

An exception occurred that is explained in detail below.

The exception, which is assigned to class 'CX_SY_REF_IS_INITIAL', was not

caught in

procedure "SUPPLY_VIEW_DATA" "(METHOD)", nor was it propagated by a RAISING

clause.

Since the caller of the procedure could not have anticipated that the

exception would occur, the current program is terminated.

The reason for the exception is:

You attempted to use a 'NULL' object reference (points to 'nothing')

access a component.

An object reference must point to an object (an instance of a class)

before it can be used to access components.

Either the reference was never set or it was set to 'NULL' using the

CLEAR statement.

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How to correct the error

Probably the only way to eliminate the error is to correct the program.

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If the error occures in a non-modified SAP program, you may be able to

find an interim solution in an SAP Note.

If you have access to SAP Notes, carry out a search with the following

keywords:

"OBJECTS_OBJREF_NOT_ASSIGNED_NO" "CX_SY_REF_IS_INITIAL"

"CL_WDR_MESSAGE_AREA===========CP" or "CL_WDR_MESSAGE_AREA===========CM00Q"

"SUPPLY_VIEW_DATA"

If you cannot solve the problem yourself and want to send an error

notification to SAP, include the following information:

1. The description of the current problem (short dump)

To save the description, choose "System->List->Save->Local File

(Unconverted)".

2. Corresponding system log

Display the system log by calling transaction SM21.

Restrict the time interval to 10 minutes before and five minutes

after the short dump. Then choose "System->List->Save->Local File

(Unconverted)".

3. If the problem occurs in a problem of your own or a modified SAP

program: The source code of the program

In the editor, choose "Utilities->More

Utilities->Upload/Download->Download".

4. Details about the conditions under which the error occurred or which

actions and input led to the error.

The exception must either be prevented, caught within proedure

"SUPPLY_VIEW_DATA" "(METHOD)", or its possible occurrence must be declared in

the

RAISING clause of the procedure.

To prevent the exception, note the following:

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Looking for Ur valuable suggestions.

Cheers,

Sam

[Former Member]

Can you post your code snippet please.

Regards.,

Nithya

[senthil_kumar29]

Hi,

I am calling a window when user click a button.

Here is the code.

DATA: l_window_manager TYPE REF TO if_wd_window_manager,

l_cmp_api TYPE REF TO if_wd_component,

l_window TYPE REF TO if_wd_window.

l_cmp_api = wd_comp_controller->wd_get_api( ).

l_window_manager = l_cmp_api->get_window_manager( ).

IF NOT wd_comp_controller IS INITIAL.

wd_comp_controller->window = l_window_manager->create_window(

window_name = 'FL_VARIANT_WIN'

close_button = abap_true ).

wd_comp_controller->window->open( ).

ENDIF.

Cheers.

Sam

[Former Member]

Hi Sam,

Please use the code wizard (Ctrl + F7) to create a popup window. This will ensure that you dont have such errors.

Regards,

Ram

[Former Member]

Hi Sam,

The correct code for creating a popup window will be:

  data lo_window_manager type ref to if_wd_window_manager.
  data lo_api_component  type ref to if_wd_component.
  data lo_window         type ref to if_wd_window.

  lo_api_component  = wd_comp_controller->wd_get_api( ).
  lo_window_manager = lo_api_component->get_window_manager( ).
  lo_window         = lo_window_manager->create_window(
                     window_name            = 'WINDOW_NAME'
*                    title                  =
*                    close_in_any_case      = abap_true
                     message_display_mode   = if_wd_window=>co_msg_display_mode_selected
*                    close_button           = abap_true
                     button_kind            = if_wd_window=>co_buttons_okcancel
                     message_type           = if_wd_window=>co_msg_type_none
                     default_button         = if_wd_window=>co_button_ok
                     ).

  lo_window->open( ).

Hope this helps.

Regards,

Ram

[senthil_kumar29]

Hi,

I have created using Wizard.

The error is probably SAP bug..

If U or Ur friends come across this.. please let me know.. How U solved.

It was working fine. but Now throwing error.

Cheers,

Sam

[mohammed_anzys]

Hi

Check this blog, see everything is correct.https:///people/mohammed.anzys/blog/2007/06/05/how-to-close-parent-window-in-webdynpro-applications

Thanks

Anzy