Dis-abling input field in Selection screen????

[Former Member]

Hi Experts,

I hv a selection screen with,

input_fld_1 has the LIST BOX with A, B, C, D, E, F

input_fld_2

input_fld_3 has the LIST BOX

So, my requirement is,

If the user selects/enters A, B, C, D in input_fld_1, the nexe moment/second (here, prog. shuld not ask the user to press any button)

the input_fld_3 shuld b automatically dis-abled!

So, Is it possible? If so How?

thanq.

[Former Member]

Hi,

What you need to do is attach a user command to your first list box.

Parameters : p_list1 type <whaterver> user-command <>.

this will trigger the at selection screen event whenever the user enters anything in the first list box.

AT SELECTION-SCREEN.

Loop at screen.

if p_list1 eq 'A' or p_list1 = 'B' or ......

if screen-name = p_list3.

screen-invisible = '1'.

screen-active = '0'.

modify screen.

endif.

endif.

endloop.

do this & it shud work...

Kindly reward points to all helpful answers

Regards,

gaurav

[Former Member]

Hi,

What you need to do is attach a user command to your first list box.

Parameters : p_list1 type <whaterver> user-command <>.

this will trigger the at selection screen event whenever the user enters anything in the first list box.

AT SELECTION-SCREEN.

Loop at screen.

if p_list1 eq 'A' or p_list1 = 'B' or ......

if screen-name = p_list3.

screen-invisible = '1'.

screen-active = '0'.

modify screen.

endif.

endif.

endloop.

do this & it shud work...

Kindly reward points to all helpful answers

Regards,

gaurav

[Former Member]

Hi

Gaurav has correctly told that User-command needs to be assigned to the parameter.

The code mentioned should be in AT SELECTION-SCREEN OUTPUT.

and screen-input = '0' should set if you want to make it input disabled.

To make it invisible, screen-active = '0' would do.

Regards

Navneet

[Former Member]

Instead, you can check in the AT SELECTION-SCREEN event for the value of input_fld_1, and handle the input accordingly so that the user is aware that the other field will not be relevant (warning message?)

AT SELECTION-SCREEN.

if input_fld_1 eq 'A' or

input_fld_1 eq 'B' or

input_fld_1 eq 'C' or

input_fld_1 eq 'D.

if input_fld_3 ne initial.

input_fld_3 = space.

MESSAGE 'Input field 3 is not relevant and will be ignored.' TYPE 'W'.

endif.

endif.

[Former Member]

Hi Daniel ...

What you say is true that without a user command this is not possible ...

hence while declaring the parameters / select options we need to add the addition USER-COMMAND .

This will trigger teh user command when something is entered in the box, without the user having to press enter button.

Regards,

gaurav

[Former Member]

It is possible when user press enter button

use at selection-screen output event.

loop at screen.

endloop.

[Former Member]

See the example code :

PARAMETERS: p_vdatu LIKE sy-datum OBLIGATORY modif id bel .

select-options : s_vdatu for sy-datum obligatory modif id rel.

select-options : s_arbpl for RC68A-arbpl modif id arb.

select-options : s_mtart for mara-mtart modif id mta.

• User Dynamic Selection

at selection-screen output.

select single * from t000md.

loop at screen.

case screen-group1.

when 'REL'.

if not p_old is initial.

screen-input = '0'.

screen-required = '0'.

screen-invisible = '1'.

endif.

modify screen.

when 'BEL'.

if not p_new is initial.

screen-input = '0'.

screen-required = '0'.

screen-invisible = '1'.

endif.

modify screen.

when 'ARB'.

if p_new is initial.

screen-input = '0'.

screen-required = '0'.

screen-invisible = '1'.

endif.

modify screen.

endloop.

[Former Member]

ThanQ Sheshu,

Some way, UR right!

But, at the same time, Prashanth suggestons is working well i.e. no need of ENTER pressing. but as u sadi, it shuld b in AT SELECECTION SCREEN OUTPUT.

But, now, my requirement changed to make it to SELECT-OPTIONS input filed, I dont know, How to get it done? Am opning a new thread, if u hv any clue, pls. respond.

thanq.

[Former Member]

hi,

for changing the screen fields dynamically, we provide logic under

<b> AT SELECTION-SCREEN OUTPUT.</b>

each and every screen fields attributes are stored in SCREEN table.

for modifying screen fields we can also use MODIFY SCREEN statement.

AT SELECTION-SCREEN OUTPUT.

  LOOP AT SCREEN.
       **here write the logic as per your needs.
       if p_list1 eq 'A' and p_list1 = 'B' and  p_list1 = 'C' and p_list1 = 'D'. 
                     if screen-name = p_list3.
                     screen-invisible = '1'.     "  field is suppresed
                     modify screen.             " it modifies the fields before displaying
                 endif.

       endif.
ENDLOOP.

regards,

Ashokreddy.