10133 ADF: How to stop search button to execute when there is an error

Hi,
I have two dropdownlists in a search criteria on a search page. The search result is at the bottom of the same page. The two values in the dropdownlists need to be validated when the search button is clicked. The validation logic is put in the searchBtn_action method binded to the search button. In the logic, when an invalid combination happens, I am able to post some error message on top of the page. But how can I stop the application to execute the sql statement? I mean if there is any method I can call to exit if there is an error? Thank you very much.
Regards,
Annie

This is most likely an optimization problem. I know such behaviour existed in the past with some functions and NI usually fixed it in some later release, but the recent changes in the LabVIEW compiler to use LLVM and various optimization improvements may have added this "feature" back in. The default value behaviour is certainly correct and consistent but the behaviour without default value feels not right to me for LabVIEW. In C I would say ok this is simply undefined behaviour and that means the produced code is entitled to even format your harddisk, since C explicitedly says all undefined behaviour is subject to choices by the implementor and is allowed to do whatever the implementor sees fit, including changing behavior between any version of the compiler.
But LabVIEW as a high level language has explicitedly so called default default data, which in this case should be used. Just having read a bit about LLVM I know they are wrestling with C undefined behaviour as well and LLVM being used a backend by several C compilers already has to deal with them. The reason that C explicitedly has many undefined behaviours is to allow various and sometimes significant optimizations, that could not be done, if the C standard would explicitedly require specific behaviour in certain cases (for instance uninitialized variables).
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

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=======
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=============================
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===========
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Read my suggestion again. You are missing a critical point. I
show you
exactly where to put the stylesheet. And it doesn't matter
how many
stylesheets you have on a page.
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"Webethics" <[email protected]> wrote in
message
news:[email protected]...
>
quote:
Originally posted by:
Newsgroup User
> Change this -
>
> #nav a{
> width: 125px;
> display: block;
> color: #000000;
> text-decoration: none;
> text-align: center;
> background-image: url(ZITTO_IMAGES/button_set1a.jpg);
> background-repeat: no-repeat;
> background-position: center 2px;
> padding-top: 14px;
> padding-bottom: 10px;
> background-color: #000000;
> }
>
> #link2,#link3,#link4,#link5,#link5,#link6 { margin-left:
6px;}
>
>
> #nav a:hover{
> background-image: url(ZITTO_IMAGES/button_set1a.jpg);
> background-repeat: no-repeat;
> background-position: center -36px;
> color: #FFFFFF;
> width: 125px;
> padding-top: 14px;
> padding-bottom: 10px;
> background-color: #000000;
> }
>
> to this -
>
> #nav a{
> width: 125px;
> display: block;
> color: #000000;
> text-decoration: none;
> text-align: center;
> background-image: url(ZITTO_IMAGES/button_set1a.jpg);
> background-repeat: no-repeat;
> background-position: center 2px;
> padding-top: 14px;
> padding-bottom: 10px;
> background-color: #000000;
> }
>
> #link2,#link3,#link4,#link5,#link5,#link6 { margin-left:
6px;}
>
>
> #nav a:hover{
> background-position: center -36px;
> color: #FFFFFF;
> }
>
> Then on each individual page, change this -
>
> </head>
>
> to this -
>
> <style type="text/css">
> #nav a#link4 {
> background-position:center - 36px;
> }
> </style>
> </head>
>
> (for link4, for example)
>
>
> --
> Murray --- ICQ 71997575
> Adobe Community Expert
> (If you *MUST* email me, don't LAUGH when you do so!)
> ==================
>
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
>
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
> ==================
>
>
> "Webethics" <[email protected]> wrote
in message
> news:[email protected]...
> >
quote:
Originally posted by:
Newsgroup User
> > When they click on a button, do they go to another
page? And is each
> > button
> > uniquely identified?
> >
> > If so, then put a little stylesheet on each such
page that sets the
> > particular button to the down sprite settings,
e.g.,
> >
> > a#link6 { downspritevalues }
> >
> > --
> > Murray --- ICQ 71997575
> > Adobe Community Expert
> >
> >
> > This is the link to the page.
> >
http://www.patrickjudson.com/zitto_web1d.html
> > What state do I use to get this effect? The active
or the visited?
> >
> > I want the buttons to remain down when click or
even better, how do I
> > get
> > the
> > welcome button to appear down when a person visits
the page to show them
> > they
> > are at the home page.
> >
> > Thanks so much. Patrick
> >
> >
> >
>
>
>
> Hey! Murray, thanks very much for the efforts. However
I'm still confused
> as
> to where to insert the individual styles on each page.
>
> The pages already have a style sheet, in fact they all
share the same
> style
> sheet. The following codes below is what you instructed
but I'm confused
> as to
> where to insert them since the page already has a head
opening and closing
> as
> well as a style opening and closing tags. Can you please
add the codes you
> instructed so I can see where they go and how to
implement them?
>
> Thanks - Patrick
>
>
> Then on each individual page, change this -
>
> </head>
>
> to this -
>
> <style type="text/css">
> #nav a#link4 {
> background-position:center - 36px;
> }
> </style>
> </head>
>
> (for link4, for example)
>
>
>
>

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10133 ADF: How to stop search button to execute when there is an error

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