topic Re: Disable push button after one click in Application Development and Automation Discussions

Disable push button after one click

Former Member — Tue, 22 Oct 2013 13:01:25 GMT

Hello Guyz,

I am developing Online Examination System using ABAP , In this I have created a Push button named START. whenever i clicks start the test by showing first question. I want to know if it is possible to disable the start button after clicking it for first time so that if during exam if one click the start button by mistake it doesn't navigate it to first question again. Please help guyz i need it urgently , ur help will be appreciated.

Thanks & regards,

kapil

Re: Disable push button after one click

former_member188282 — Tue, 22 Oct 2013 13:09:30 GMT

Hi Kapil,

If you are developing screen in module pool.

Please check the below code.

Write the below code IN PBO EVENT.

Here append sy-ucomm field in to internal table t_ucomm.

APPEND 'ENT1' TO t_ucomm.

APPEND 'CHECK' TO t_ucomm.

SET PF-STATUS 'LOSEROEFFNUNG' EXCLUDING t_ucomm.

Regards,

Rajesh

Re: Disable push button after one click

Former Member — Tue, 22 Oct 2013 13:17:44 GMT

Hi Kapil,

You can disable by modifying screen table when start button is pushed. Set some flag in PAI and use it for disabling in PBO.

Regards,

Koustubh

Re: Disable push button after one click

vladimir_erakovic — Tue, 22 Oct 2013 13:24:54 GMT

Hi Kapil,

You can just declare variable, let's say first_time TYPE c VALUE ' '.

In PBO of screen put IF statement in which you check value of that variable, and if it's different then ' ' do loop at screen and disable button.

In PAI module user_command on click on start button assign the value e.g. 'X' to variable first_time so when user clicks start button for the first time it will be disabled.

Hope it helps.

Regards,

Vladimir

Re: Disable push button after one click

Former Member — Tue, 22 Oct 2013 19:00:17 GMT

Hi, If you are using Screen Programming then you can use SCREEN-INPUT = 0 in the PBO method and similarly you can activate on some condition

SAMPLE code:

MODULE STATUS_0001 OUTPUT " PBO of your screen

If click = 1

LOOP AT SCREEN

If screen-name ='YOUR Button name here'

screen-input = 0

MODIFY SCREEN

endif

ENDLOOP

endif

The click can be known in PAI method as follows:

PAI method

CASE SY-UCOMM.

when 'Your button name;.

click = 1.

ENDCASE.

Message was edited by: Rajiv Kumar

Re: Disable push button after one click

Former Member — Wed, 23 Oct 2013 08:04:09 GMT

Hello Rajiv,

I have implemented your but there is error coming which am not able to identify.

if u know the solution for this , please share. I need this urgently. Ur help will be appreciated.

Re: Disable push button after one click

vladimir_erakovic — Wed, 23 Oct 2013 08:18:30 GMT

Hello Kapil,

You must put that code in PBO STATUS module of screen on which is the button you want to disable.

Regards,

Vladimir

Re: Disable push button after one click

Former Member — Wed, 23 Oct 2013 08:36:11 GMT

I have already put that code in PBO STATUS module , u can see in screen shot but still error is coming . Plz help me out guyz.

Re: Disable push button after one click

vladimir_erakovic — Wed, 23 Oct 2013 08:41:25 GMT

Kapil,

Check this discussion:

http://scn.sap.com/thread/2048463

Re: Disable push button after one click

Former Member — Wed, 23 Oct 2013 08:42:00 GMT

Check this link for error:

http://scn.sap.com/thread/2048463

Re: Disable push button after one click

RaymondGiuseppi — Wed, 23 Oct 2013 09:18:11 GMT

Well I hope that you did not define a structure with the name SCREEN in your code ?

(ActuallyI hope you did, so you just rename it)

Even if there are not "reserved words" in Abap, try not to use abap words to name your fields, structure or objects.

Regards,

Raymond

Re: Disable push button after one click

Former Member — Wed, 23 Oct 2013 12:02:57 GMT

As Raymond suggested, you have another variable declared in your program called 'SCREEN'. Rename the variable to something else. This error would disappear.

Re: Disable push button after one click

Former Member — Wed, 23 Oct 2013 18:59:06 GMT

Hi,

If you have declared any table or Variable with name "SCREEN" change it , to some other name and revert back with your results.

Thanks.

Re: Disable push button after one click

former_member186413 — Thu, 24 Oct 2013 03:25:52 GMT

It's quite simple, first in PAI event MODULE user_command.

for eg.

MODULE user_command INPUT.

save_ok = sy-ucomm.

CASE save_ok.

WHEN 'START".

PERFROM exam.

LOOP AT SCREEN.

IF SCREEN-NAME = 'START'.

SCREEN-ACTIVE = 0.

ENDIF.

MODIFY SCREEN.

ENDLOOP.

ENDCASE.

ENDMODULE.