Define mandatory field in reuse_alv_grid_display

[hagit]

Hello Experts,

When calling reuse_alv_grid_display I defined field as editable and add a button to insert a new record. How can I define a field as mandatory?

In the field catalog I tried to set

key_sel = abap_true

sel = abap_true

but it did not help.

thank you in advance

Hagit

[Sandra_Rossi]

REUSE_ALV_GRID_DISPLAY was not designed to permit that easily. You can only easily control while validating the full data.

Use CL_GUI_ALV_GRID and event DATA_CHANGED to validate yourself the fields. See example code in comment in https://answers.sap.com/questions/3654347/mandatory-field-in-editable-alv.html.

If you want the field to be controlled immediately, you need to first call the method register_edit_event with parameter i_event_id = cl_gui_alv_grid=>mc_evt_modified, so that DATA_CHANGED is called each time you leave a field.

[hagit]

sandra.rossi thank you for your answer.

Do you mean that I can use CL_GUI_ALV_GRID and event DATA_CHANGED when using reuse_alv_grid_display?

If yes, then where should I define the event data_changed?

if I do it after the call to reuse_alv_grid_display (line 79) then a dump is raised because lo_alv is initial

class LCL_EVENT_REGISTER

thank you

Hagit

[Sandra_Rossi]

So you tried the not-easy way, by getting the underlying ALV Grid Control object behind REUSE_ALV_GRID_DISPLAY by calling GET_GLOBALS_FROM_SLVC_FULLSCR. It works only if the ALV Grid is still displayed (during execution of callback subroutines), it cannot work after it's not displayed anymore (i.e. after REUSE_ALV_GRID_DISPLAY).

If you want to continue this way, you must execute your code while REUSE_ALV_GRID_DISPLAY is running and after it has instantiated the Control, either in the callback subroutines (maybe during SET_PF_STATUS event) or via Implicit Enhancement Options.

[hagit]

sandra.rossi Thank you for your answer.

When is SET_PF_STATUS event triggered?

Is it like PBO ?

Tahnk you

Hagit

[Sandra_Rossi]

I don't know, "maybe" as I said. What is important is to find a place, "while REUSE_ALV_GRID_DISPLAY is running and after it has instantiated the Control", I have just given possibilities. Of course, this is not supported by SAP, i.e. it might change (although I think it won't). A GUI Status must be set during the PBO, so I guess it's true to say "it is like PBO".

[hagit]

sandra.rossi

What is not supported?

Is the event triggering time not supported? Or something else?

[Sandra_Rossi]

The way you do it is not supported: you are looking for a hack while using REUSE_ALV_GRID_DISPLAY, to trigger the event DATA_CHANGED after pressing TAB or ENTER, and to trigger ABAP code when the event DATA_CHANGED. You are mixing 2 technologies, this was not intended to be used like that by SAP.

[hagit]

sandra.rossi

I already use REUSE_ALV_GRID_DISPLAY, so it is complicated to change it to CL_GUI_ALV_GRID & DATA_CHANGED event.

According to your comment I will not mix the 2 technologies.

What do you think about the following solution:

In user_command routine – When r_ucomm = &DATA_SAVE

Loop at gt_out into data(ls_out).

if ls_out-fld1 is initial or ls_out-fld10 is initial .

message ….

endif.

endloop.

thank you