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when-validate-item giving strange behavior [message #394647]

Sun, 29 March 2009 04:25

dude4084
Messages: 222
Registered: March 2005
Location: Mux

Senior Member

Hi

I am facing strange problem now-a-days. The when-validate-item trigger usually fails.
Let me explain:

Here is image of my screen.

/forum/fa/5961/0/

The when-validate-trigger on unit price has following code.

declare
	chk_button number;
begin
  message(:inv1p.uprice); pause;
if :inv1p.uprice<=0 then
set_alert_property('alert_info' ,title,'Info');
set_alert_property('alert_info' ,alert_message_text,'Price can not be negative');
chk_button:=show_alert('alert_info');
raise form_trigger_failure;
end if;
end;

You notice that in above code i have checked the value of uprice in "message(:inv1p.uprice); pause;" . The image is taken when i have entered 55 as unit price and thus 55 is being displayed in Messaged in bottom line of the screen.

The problem begins after this line as "if :inv1p.uprice<=0 then" has test gives me TRUE which is against the logic of 55<=0. Thus the alerts comes in front of me saying Price can not be negative.

Can not understand whats going on.

Any comments?

N.B. Many times this problem is fixed by delete the trigger and creating the new trigger and re-writing the code(Copy/pasting code only)

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Re: when-validate-item giving strange behavior [message #395545 is a reply to message #394647]

Wed, 01 April 2009 18:07

djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia

Senior Member
Account Moderator

Please confirm that your item IS 'inv1p.uprice'. What datatype do you have on this item?

David

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Re: when-validate-item giving strange behavior [message #395581 is a reply to message #394647]

Wed, 01 April 2009 22:56

dude4084
Messages: 222
Registered: March 2005
Location: Mux

Senior Member

Rezpected David.

The item is 'inv1p.uprice'

The datatype is number at form level as well as backend level.

-Dude

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Re: when-validate-item giving strange behavior [message #395876 is a reply to message #395581]

Thu, 02 April 2009 23:52

djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia

Senior Member
Account Moderator

Please do a Ctrl-Shft-k (Compile All) and a generate and see if that makes any difference.

Try using "message('>'||to_char(:inv1p.uprice)||'<');" for your message command and see what happens.

David

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Re: when-validate-item giving strange behavior [message #396109 is a reply to message #395876]

Sat, 04 April 2009 00:37

dude4084
Messages: 222
Registered: March 2005
Location: Mux

Senior Member

Dear David

As i was needing solution at that time, so i deleted the trigger and rebuilt it. (And just copying the code in buffer before deleting and pasting it later on when created). This had solved my problem.

I used to do Ctrl+T instead of Shift+Ctrl+k. Does it make any major difference?

Anyhow, I will test your suggestions when i will fall in the fix once again.

-Dude

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Re: when-validate-item giving strange behavior [message #396145 is a reply to message #396109]

Sat, 04 April 2009 05:26

itech
Messages: 173
Registered: May 2008
Location: Fsd, Pakistan

Senior Member

dude4084 wrote on Sat, 04 April 2009 10:37

if u get such unexpected outputs better re-compile the form using CTRL+SHIFT+K, and as in your case the problem was that form was not compiled correctly.

CTRL+k ==> Incremental Compile.
CTRL+SHIFT+K ==> Compile All.

[Updated on: Sat, 04 April 2009 05:27]

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