Screen-Required and error messages

[bryan_cain]

Hi all,

I have a question with the "screen-required" component of a selection screen. I have a checkbox (p_hist) that when checked, controls whether or not another field (pdate) is mandatory. The problem is, if you check p_hist accidentally and then uncheck it without populating pdate, SAP raises an error message that you need to populate all required fields.

Is there a way around this besides not using screen-required and instead just checking that the pdate is not initial if p_hist is not initial? I know that will work, but I'd rather give the user some visual clue that the field is now required before giving an error message.

Thanks

[Former Member]

HI Brian,

try like...

At selection-screen.

if p_date is initial.

if not p_hist is initial.

throw error message.

else.

• nothing to do cos check box is not selected.

endif.

endif.

Regards

SAB

[bryan_cain]

Hi Syed,

Yes, I thought of that. And I'll use it if I have to, but I prefer the idea of using the screen-required becuase that way when you check p_hist you can see on the screen that the field is now mandatory.

Thanks

[Former Member]

Unfortunately once you make a parameter required, you cannot change it back to optional unless you enter a value in there. 'Required' property is checked even before calling at selection screen output.

[Former Member]

You could put a comment (say an asterisk) before or after fields which you want to be mandatory.

Rob

[bryan_cain]

That's a really good idea, thanks.

[Former Member]

Glad to help. I'm a firm believer in looking for simple solutions.

Rob

[bryan_cain]

So who gets the extra four points? You or Srinivas? He answered my question, but you gave me a solution. Hmm...

[Former Member]

In cases like this, I think you can mark it as "solved on your own". Or you can assign more points.

Rob

[bryan_cain]

Since I think you both gave equally correct answers, I will mark as solved on my own.

Thanks again.