How to make a screen field invisible?

Question

Hi
My problem is the following one : I use th screen painter to create a screen.
I would like one of the screen fields to be invisible for the user but I would like to be able to write and read values in this field using 'C14Z_DYNP_READ_FIELD' and 'DYNP_VALUES_UPDATE'
I tried to set the value of screen-active to 0 in the PBO module but it doesn't solve the problem cause if I do it, I can't specify a value for the field.
Please help,
Kind Regards
Morgan

Answer 1

hi
good
ACTIVE, INPUT, OUTPUT, and INVISIBLE
There are certain hierarchy rules between the components ACTIVE, INPUT, OUTPUT, and INVISIBLE. They also have different effects depending on their respective static settings.
The ACTIVE component has no equivalent in the element attributes. Instead, it changes the components INPUT, OUTPUT, and INVISIBLE.
At the beginning of the PBO, ACTIVE is always set to 1, regardless of the static attribute settings. Setting ACTIVE to 0 automatically sets INPUT = 0, OUTPUT = 0, and INVISIBLE = 1. Any other changes to the settings of INPUT; OUTPUT, and INVISIBLE to the current screen element are ignored. Conversely, setting INPUT = 0, OUTPUT = 0, and INVISIBLE = 1 automatically sets ACTIVE to 0, and any further assignment to ACTIVE for the current screen element will be ignored. The setting ACTIVE = 1 has no other effect on the attributes. The only purpose of the ACTIVE component is to allow you to make a screen field inactive through a single assignment. You should particularly note that a module call linked to a FIELD statement in the screen flow logic is always executed, even when SCREEN-ACTIVE = 0 for the field in question. If you want to prevent a module from being processed for an inactive field, you must specify the FIELD- and MODULE statements separately.
go through this link
http://help.sap.com/saphelp_nw2004s/helpdata/en/9f/dbab6f35c111d1829f0000e829fbfe/content.htm
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/loop_a03.htm
thanks
mrutyun^