Dynpro | Enabling button and input field after button click

[former_member27]

I have two output/input fields and a button i want to enable when the button 'CHANGE' is clicked.

I've checked with debugger and everything seems ok there but i just can't get it to work. The button and the fields just stay inactive/disabled all the time

Here's my current code:

CASE save_ok.
 WHEN 'BACK' OR 'EXIT' OR 'QUIT'.
 LEAVE TO SCREEN 1200.
 WHEN 'AUSWERTEN'.
 WHEN 'CONFIRM'.
 LOOP AT SCREEN.
 CASE screen-name.
 WHEN 'BTN_CHANGE'.
 screen-input = 0. "to disable.
 screen-active = 1. "to hide
 WHEN 'BTN_CONFIRM'.
 screen-input = 0. "to disable.
 screen-active = 1. "to hide
 " WHEN OTHERS.
 ENDCASE.
 MODIFY SCREEN.
 ENDLOOP.
 WHEN 'CHANGE'.
 IF lt_row IS INITIAL.
 MESSAGE 'no row selected' TYPE 'S' DISPLAY LIKE 'E'.
 ELSE.
 LOOP AT SCREEN.
 CASE screen-name.
 WHEN 'BTN_CONFIRM'.
 screen-input = 1. "to disable.
 screen-active = 1. "to hide
 WHEN 'GN_SID'.
 screen-input = 1. "to disable.
 screen-active = 1. "to hide
 WHEN 'GN_MID'.
 screen-input = 1. "to disable.
 screen-active = 1. "to hide
 ENDCASE.
 MODIFY SCREEN.
 ENDLOOP.

[former_member27]

Hi zystosb,

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[Sandra_Rossi]

Please edit your question, select your code and press the button [CODE], which makes the code appear colored/indented, it will be easier for people to look at it. Thank you!

[RaymondGiuseppi]

• The loop at screen to enable/disable input or button field should be coded in PBO (before output, AT SELECTION-SCREEN OUTPUT in selection screen)
• The process of function key, button pressed should be coded in PAI (after input, AT SELECTION-SCREEN in selections screen)

If your program switch between display and change mode, then handle a global variable (or class attributes) to memorize the display mode. Set it in the PAI when display or change icon are pressed. Use this variable in a LOOP AT SCREEN in the PBO.