Lookup clears variable - requestpage

Belias · 2010-09-10

i have a requestpage with a field cdcustcode. under its onlookup trigger, i have the following code:

IF PAGE.RUNMODAL(0,TBCustomer) = ACTION::LookupOK THEN 
  CDCustCode := TBCustomer."No.";

this is pretty straightforward, in my opinon, but if i click the lookup button, and then esc (the lookupok does not take effect) the field is cleared...why? :-k and more important, how can i avoid it?
thanks in advance for your suggestion.

Reinhard · 2010-09-10

don't you want to put the code on the onLookup trigger

Belias · 2010-09-13

sorry, i corrected my previous post. The code was in the lookup, obviously...not in onvalidate #-o
anyway, the topic is stil open, do you know how to avoid the problem?

Belias · 2010-09-13

i found a way!!! (my memory is not good, but i am pretty sure to have never done something like this up to now :-k i wonder why i need to do it now)

IF PAGE.RUNMODAL(0,TBCustomer) = ACTION::LookupOK THEN 
  CDCustCode := TBCustomer."No."
//CODE ADDED
ELSE
  cdcustcode := text;   //text is the VAR parameter of the onlookup trigger

QuickWE · 2010-09-13

Belias wrote:
i found a way!!! (my memory is not good, but i am pretty sure to have never done something like this up to now :-k i wonder why i need to do it now)
IF PAGE.RUNMODAL(0,TBCustomer) = ACTION::LookupOK THEN 
  CDCustCode := TBCustomer."No."
//CODE ADDED
ELSE
  cdcustcode := text;   //text is the VAR parameter of the onlookup trigger

I think ,the answer was in your reply ,the root cause is Onlookup ,the text variable is
PassByRef value so if you don't have to assigned any value ,the text will return blanks value.

Belias · 2010-09-13

@QuickWE: read carefully the code: the "else" part of the action::lookupok assign "text" to cdcustomer, not viceversa.
This means that text is actually evaluated with the correct value when pressing "esc" instead of doing lookupok on the lookup page.
If i MESSAGE(text), nav returns the actual value of the textbox. if i message(cdcustomer) it returns, blank, no matter what

QuickWE · 2010-09-13

Belias wrote:

@QuickWE: read carefully the code: the "else" part of the action::lookupok assign "text" to cdcustomer, not viceversa.
This means that text is actually evaluated with the correct value when pressing "esc" instead of doing lookupok on the lookup page.
If i MESSAGE(text), nav returns the actual value of the textbox. if i message(cdcustomer) it returns, blank, no matter what

I think,your replies is everythings that I means as my previous posts (If you read by carefully

).

kine · 2010-09-13

Right now I do not have the NAV 2009 to loo into, but if it works in same way as on Form, than:

1) Work with the parameter passed as ref to "set the value"
2) Do not forget to exit(true) or exit(false) to signal if lookup was done or canceled... ;-)

Belias · 2010-09-14

kine wrote:

Right now I do not have the NAV 2009 to loo into, but if it works in same way as on Form, than:

1) Work with the parameter passed as ref to "set the value"
2) Do not forget to exit(true) or exit(false) to signal if lookup was done or canceled... ;-)

doesn't work like this. (actually, i already tried to use the exits, but i tried another time, who knows) :-k

IF PAGE.RUNMODAL(PAGE::"All Patient - List",TBPatientTemp3) = ACTION::LookupOK THEN BEGIN
  Text := TBPatientTemp3."No.";
  EXIT(TRUE);
END ELSE BEGIN
  EXIT(FALSE);
END;

am i missing something? (just to be sure, i also tried to revert the value of the "exits", but with no luck.)

Lookup clears variable - requestpage

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