topic Re: OO ALV Issue in Application Development and Automation Discussions

OO ALV Issue

Venkat_Sesha — Tue, 20 Sep 2011 09:13:03 GMT

Hi All,

I have four buttons on the ALV toolbar of screen 100 and I am calling screen 200 when the user clicks on them. Each button will display different data. And every time when you click on the button I am refreshing the Outtab and Field Catalog.

The Data got filled correclty in the Outtab everytime you click on any of the four ALV toolbar buttons.

The data is displayed well and correct when the report is executed for the first time in a popup screen 200.

Now when I click on Back to Overview button on the Popup . The screen 100 data is displayed again. And now I click on the Second button from the ALV toolbar the data got filled correctly in OUTTAB. But not reflecting in the popup ALV 200 Instead it is displaying previous button's data which we clicked.

If I completely come back to Selection screen of the report and execute the same step I am getting correct data displayed.

Please help.

Re: OO ALV Issue

sangeetha_sk — Tue, 20 Sep 2011 09:21:51 GMT

have you called the method - "refresh_table_display" of your gui alv grid class while calling screen 200 i.e in PBO of 200?

Re: OO ALV Issue

Former Member — Tue, 20 Sep 2011 09:25:44 GMT

If after going back from screen 200 you don't destroy ALV completly, you need to use the method for refresh in order to update the output .

The method is refresh_table_display just as Sangeetha says

Max

Re: OO ALV Issue

Venkat_Sesha — Tue, 20 Sep 2011 09:44:15 GMT

Even though I destroyed the ALV completely tthe output is Not changed.

Please find my code below

Form To Display Data for Statistics Button

Perform DISPLAY_STATISTICS Using TB_DISPLAY.

FORM DISPLAY_STATISTICS USING TB_DISPLAY Type Any.

Clear : G_CONT_STAT. -

> Every Time the code goes into If Part only.

IF G_CONT_STAT is initial.

Create a custom container control for our ALV Control

CREATE OBJECT G_CONT_STAT

EXPORTING

container_name = G_CONT_ON_DIALOG_STAT

EXCEPTIONS

cntl_error = 1

cntl_system_error = 2

create_error = 3

lifetime_error = 4

lifetime_dynpro_dynpro_link = 5.

Creating ALV Grid instance

CREATE OBJECT G_GRID_STAT

EXPORTING

i_parent = G_CONT_STAT

EXCEPTIONS

error_cntl_create = 1

error_cntl_init = 2

error_cntl_link = 3

error_dp_create = 4

others = 5 .

IF sy-subrc <> 0.

Exception handling

ENDIF.

Display Data

CALL METHOD G_GRID_STAT->SET_TABLE_FOR_FIRST_DISPLAY

EXPORTING

I_SAVE = 'X'

I_DEFAULT = 'X'

IS_LAYOUT = GS_LAYOUT

IS_VARIANT = GS_VARIANT

CHANGING

IT_OUTTAB = TB_DISPLAY

IT_FIELDCATALOG = TB_FCAT

EXCEPTIONS

INVALID_PARAMETER_COMBINATION = 1

PROGRAM_ERROR = 2

TOO_MANY_LINES = 3

others = 4.

IF SY-SUBRC <> 0.

MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

ELSE.

Refresh Table Display

CALL METHOD G_GRID_STAT->REFRESH_TABLE_DISPLAY.

ENDIF.

ENDFORM. " DISPLAY_STATISTICS

Edited by: VENKAT SESHA on Sep 20, 2011 11:57 AM

Re: OO ALV Issue

Former Member — Tue, 20 Sep 2011 10:08:54 GMT

hi..

put the above code part in PBO of screen 200

Re: OO ALV Issue

Former Member — Tue, 20 Sep 2011 10:11:34 GMT

You need to destroy and refresh the container too, try to use FREE method

G_CONT_STAT->FREE( ).

Clear : G_CONT_STAT.

Max

Re: OO ALV Issue

Venkat_Sesha — Tue, 20 Sep 2011 11:41:17 GMT

Hi Max,

Thanks for the Update.

Now when I use G_CONT_STAT->FREE( ).

Clear : G_CONT_STAT.

I am getting a new issue.

i.e., When I first click on the First ALV toolbar button It is fine. and clicked on Back to Overview button in Popup screen 200

which will take me to screen 100 report output. And Now I clicked on the Second Button in ALV Toolbar Which will call the Popup Screen 200 with a new data. This Time there is nothing displayed on the Popup screen 200. even though the Set table for first display was success.

Please guide.

Re: OO ALV Issue

Venkat_Sesha — Tue, 20 Sep 2011 11:49:37 GMT

Thanks Max ...Problem Solved

Re: OO ALV Issue

Former Member — Tue, 20 Sep 2011 12:06:30 GMT

This sample works fine:

DATA: T_SFLIGHT TYPE STANDARD TABLE OF SFLIGHT WITH HEADER LINE,
      T_SFLIGHT_1 TYPE STANDARD TABLE OF SFLIGHT.

DATA: N_REC TYPE I.

DATA: OK_CODE TYPE SY-UCOMM.

DATA: GRID1              TYPE REF TO CL_GUI_ALV_GRID,
      G_CUSTOM_CONTAINER TYPE REF TO CL_GUI_CUSTOM_CONTAINER.

START-OF-SELECTION.

  SELECT * INTO TABLE T_SFLIGHT
    FROM SFLIGHT.

  CALL SCREEN 100.

MODULE USER_COMMAND_0100 INPUT.
  CLEAR T_SFLIGHT_1 .

  LOOP AT T_SFLIGHT FROM 1 TO N_REC.
    APPEND T_SFLIGHT TO T_SFLIGHT_1.
  ENDLOOP.

  SET SCREEN 200. LEAVE SCREEN.
ENDMODULE.                 " USER_COMMAND_0100  INPUT

MODULE USER_COMMAND_0200 INPUT.
  IF OK_CODE = 'BACK'.
    SET SCREEN 100. LEAVE SCREEN.
  ENDIF.
ENDMODULE.                 " USER_COMMAND_0200  INPUT

MODULE STATUS_0200 OUTPUT.
  SET PF-STATUS '200'.

  IF G_CUSTOM_CONTAINER IS INITIAL.
    CREATE OBJECT G_CUSTOM_CONTAINER
      EXPORTING
        CONTAINER_NAME = 'MY_CONTAINER'.

    CREATE OBJECT GRID1
      EXPORTING
        I_PARENT = G_CUSTOM_CONTAINER.
* Display Data
    CALL METHOD GRID1->SET_TABLE_FOR_FIRST_DISPLAY
      EXPORTING
        I_STRUCTURE_NAME = 'SFLIGHT'
      CHANGING
        IT_OUTTAB        = T_SFLIGHT_1.
  ELSE.
    CALL METHOD GRID1->REFRESH_TABLE_DISPLAY.
  ENDIF.
ENDMODULE.                 " STATUS_0200  OUTPUT

I don't know how you've solved the problem, but if you see my sample above, I don't use any method to clear the container or ALV GRID, but the method for refresh and it works.

In my first screen I dont' have an ALV, but I think it's not important

Max