CL_SALV_TREE refresh

[aidan_mulcahy]

Hi,

sample program SALV_DEMO_TREE_EVENTS displays a fresh set of data when you press F3, shift F3 or F12.

It does this in routine display_fullscreen by:

1) calling the cl_salv_tree->factory etc... as far as gr_tree->display( ).

2) Press F3 goes into standard SLVC_FULLSCREEN routine tree_exit

3) calling the cl_salv_tree->factory etc... as far as gr_tree->display( ) with new data.

I want to move this to a user_command so that I can refresh the data on the screen without the need to exit and re-run. Effectively, how can I do step 2 with user_command (pressing a button)?

Thanks..

[aidan_mulcahy]

Hi Aidan,

When you press F3 it runs the same code for displaying the tree again.

First create a button in the PF Status of the screen.(100 in this case)

Then in the PAI add the code for calling the code in PBO from the FACTORY method.

   FORM d0100_pai .
  CASE ok_code.
    WHEN 'BACK' OR 'EXIT' OR 'QUIT'.
      CLEAR ok_code.
      SET SCREEN 0.
      LEAVE SCREEN.
    WHEN 'REF'.
      CALL METHOD gr_container->free.
      CLEAR gr_tree.
      REFRESH gt_outtab.
      TRY.
          IF cl_salv_tree=>is_offline( ) EQ if_salv_c_bool_sap=>false.
            CREATE OBJECT gr_container
              EXPORTING
                container_name = 'CONTAINER'.
          ENDIF.
          cl_salv_tree=>factory(
            EXPORTING
              r_container  = gr_container
            IMPORTING
              r_salv_tree = gr_tree
            CHANGING
              t_table      = gt_outtab ).
        CATCH cx_salv_error.
          EXIT.
      ENDTRY.
      PERFORM create_tree.
*... §3 Functions
*... §3.1 activate ALV some Functions
*... §3.2 add your own button at the left
      DATA: lr_functions TYPE REF TO cl_salv_functions_tree.
      lr_functions = gr_tree->get_functions( ).
      lr_functions->set_all( gc_true ).
      lr_functions->set_group_print( abap_false ).

      PERFORM set_columns_technical.
      PERFORM application_action.
*... §5 display the table
      gr_tree->display( ).
  ENDCASE.
ENDFORM.       

Thanks,

Shambu

[Former Member]

Hi Aidan,

When you press F3 it runs the same code for displaying the tree again.

First create a button in the PF Status of the screen.(100 in this case)

Then in the PAI add the code for calling the code in PBO from the FACTORY method.

   FORM d0100_pai .
  CASE ok_code.
    WHEN 'BACK' OR 'EXIT' OR 'QUIT'.
      CLEAR ok_code.
      SET SCREEN 0.
      LEAVE SCREEN.
    WHEN 'REF'.
      CALL METHOD gr_container->free.
      CLEAR gr_tree.
      REFRESH gt_outtab.
      TRY.
          IF cl_salv_tree=>is_offline( ) EQ if_salv_c_bool_sap=>false.
            CREATE OBJECT gr_container
              EXPORTING
                container_name = 'CONTAINER'.
          ENDIF.
          cl_salv_tree=>factory(
            EXPORTING
              r_container  = gr_container
            IMPORTING
              r_salv_tree = gr_tree
            CHANGING
              t_table      = gt_outtab ).
        CATCH cx_salv_error.
          EXIT.
      ENDTRY.
      PERFORM create_tree.
*... §3 Functions
*... §3.1 activate ALV some Functions
*... §3.2 add your own button at the left
      DATA: lr_functions TYPE REF TO cl_salv_functions_tree.
      lr_functions = gr_tree->get_functions( ).
      lr_functions->set_all( gc_true ).
      lr_functions->set_group_print( abap_false ).

      PERFORM set_columns_technical.
      PERFORM application_action.
*... §5 display the table
      gr_tree->display( ).
  ENDCASE.
ENDFORM.       

Thanks,

Shambu

[aidan_mulcahy]

Thanks Shambu,

that looks like it would work if I was using the container section of the standard, but I'm not.

I'm going to award full points anyway as I wasn't clear on that.

I did get it working by putting setting my 'REFRESH' button to have okcode =  '&F03' so it uses SAP code.

And then in my code:

WHILE SY-UCOMM ne 'BACK. "only way the program can be exited.

..

create_tree etc...

...

endwhile

the only problem I have now is that they will want the nodes that are expanded to remain expanded after refresh....for now, they are closed....must check that.

Thanks for your help.