Problem with sub-screen <actions on Cancel button>

[Former Member]

Hi all,

I have a problem with sub-screen.

I created a subscreen (screen sequence in MM01/MM02/MM03). When users leave this screen, I call POPUP_TO_CONFIRM to ask if they want to save the data.

1) My goal is: when they choose Cancel, no actions are performed and users will see the current screen. However, I cannot use command: SET SCREEN 0 or LEAVE TO SCREEN 0 because the system gives an error message:

 SET SCREEN 0 not allowed in subscreens. 

2) How can we determine when the user leaves the screen? which value of SY-UCOMM will be used to check this?

Thanks in advance.

[Former Member]

Same kind of development I've also done, U don't need to give POPUP_TO_CONFIRM explicitly, system itself ask.

Also subscreen can't have OK_CODE so can't use SY-UCOMM in PAI of subscreen.

I think it's sufficient, still if have any doubt pls fill free to ask.

don't forget to reward,

S@meer

[Former Member]

Hi.

The concept is

-

---

MAIN -

---

MAN SCREEN

PBO

- Sub Screen no 100

PAI

MODULE user_command..

END MAIN SCREEN

MODULE user_command INPUT.

CASE SY-UCOMM .

WHEN 'BACK'. "or any bottons on menu bar

IF global_variable_changed = 'X'.

CALL FUNCTION 'POPUP_TO_CONFIRM'

IMPORTING

ANSWER = lv_answer

case lv_answer.

when '1'. "Yes

"Perform Save_data.

leave to screen 0.

when '2'. "No

leave to screen 0.

when 'A'. "Cancel

"Do nothing that it will be at a same subscreen 100

endcase.

ENDIF

when 'SAVE'.

"Perform Save_data.

leave to screen 0.

ENDCASE.

ENDMODULE.

-

---

END MAIN -

---

-

---

SUB SCREEN -

---

-- user will do something with sub screen 100 and click "BACK" or any bottons which will

-- can be detected in MAIN SCREEN

-- -

---

SUB SCREEN 100.

PAI

MODULE set_something_changed.

END SUB SCREEN 100

MODULE set_something_changed INPUT.

global_variable_changed = 'X'.

ENDMODULE.

Hope it help.

SayC.

[Former Member]

Hi,

After checking the POPUP_TO_CONFIRM -> ANSWER if it is 2 or A.

SY-UCOMM = 'BACK'.

Thanks,

Arunprasad.P

Reward if Useful.

[Former Member]

Hi all,

Thank you for your suggestion. I really appreciate your help.

I want to apologize because I did post one question in 2 threads (due to my mistake. The network connection at my place had problem and I patiently pressed POST twice). So, it made our discussion fragmented.

one thread herein, another:

[|]

I found out the solution and I will post it to that thread. I will close both threads.

Hi Sameer,

Actually, I have to call POPUP_TO_CONFIRM to determine to save or not because it is the requirement

We can use SY-UCOMM, but not OK_CODE for sub screens. In fact, my code is based on SY-UCOMM to check if user leaves my sub-screen.