Re: [newbie] Intercepting client-side form validation/submission
Use Event.observe for the form and use the validation with custom JS of
urs...
HTH
- Ashwanth Kumar
On Wed, Dec 23, 2009 at 3:48 PM, Kenneth CH, LEE wrote:
> There is a submit button within the form. I could not attach the code
> in onclick handler because I want it to run only if the form is valid.
>
> 2009/12/22 Ashwanth Kumar :
> > On Tue, Dec 22, 2009 at 6:14 PM, Kenneth CH, LEE
> wrote:
> >
> >> Hi there,
> >>
> >
> > Hello,
> >
> >
> >>
> >> Is there any existing facilities to trigger some custom Javascript
> >> code _after_ validating the form?
> >>
> >> I'm now doing it with some Javascript tricks:
> >> ===
> >>
> >> ...
> >>
> >> Event.observe(window, "load", function() {
> >>var f = $("myform").onsubmit;
> >>$("myform").onsubmit = function(e) {
> >>return f(e) && customFunction();
> >>};
> >> });
> >>
> >>
> >> ...
> >>
> >> function customFunction() {
> >> //return true to submit
> >> }
> >>
> >> ===
> >>
> >
> > When exactly do u submit ur form??
> >
> >
> >> Notice that the custom function is only called _after_ validation
> >> _and_ only if it was successful.
> >>
> >
> > Well, if you want to do a custom JS, u can do a Zone Update of the Form,
> > then observe Tapestry.ZONE_UPDATED_EVENT, for doing some some custom JS!
> > But, that happens only after form submission and not before that!
> >
> > HTH
> > - Ashwanth Kumar
> >
>
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>
Re: [newbie] Intercepting client-side form validation/submission
There is a submit button within the form. I could not attach the code
in onclick handler because I want it to run only if the form is valid.
2009/12/22 Ashwanth Kumar :
> On Tue, Dec 22, 2009 at 6:14 PM, Kenneth CH, LEE wrote:
>
>> Hi there,
>>
>
> Hello,
>
>
>>
>> Is there any existing facilities to trigger some custom Javascript
>> code _after_ validating the form?
>>
>> I'm now doing it with some Javascript tricks:
>> ===
>>
>> ...
>>
>> Event.observe(window, "load", function() {
>> var f = $("myform").onsubmit;
>> $("myform").onsubmit = function(e) {
>> return f(e) && customFunction();
>> };
>> });
>>
>>
>> ...
>>
>> function customFunction() {
>> //return true to submit
>> }
>>
>> ===
>>
>
> When exactly do u submit ur form??
>
>
>> Notice that the custom function is only called _after_ validation
>> _and_ only if it was successful.
>>
>
> Well, if you want to do a custom JS, u can do a Zone Update of the Form,
> then observe Tapestry.ZONE_UPDATED_EVENT, for doing some some custom JS!
> But, that happens only after form submission and not before that!
>
> HTH
> - Ashwanth Kumar
>
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Re: [newbie] Intercepting client-side form validation/submission
On Tue, Dec 22, 2009 at 6:14 PM, Kenneth CH, LEE wrote:
> Hi there,
>
Hello,
>
> Is there any existing facilities to trigger some custom Javascript
> code _after_ validating the form?
>
> I'm now doing it with some Javascript tricks:
> ===
>
> ...
>
> Event.observe(window, "load", function() {
>var f = $("myform").onsubmit;
>$("myform").onsubmit = function(e) {
>return f(e) && customFunction();
>};
> });
>
>
> ...
>
> function customFunction() {
> //return true to submit
> }
>
> ===
>
When exactly do u submit ur form??
> Notice that the custom function is only called _after_ validation
> _and_ only if it was successful.
>
Well, if you want to do a custom JS, u can do a Zone Update of the Form,
then observe Tapestry.ZONE_UPDATED_EVENT, for doing some some custom JS!
But, that happens only after form submission and not before that!
HTH
- Ashwanth Kumar
[newbie] Intercepting client-side form validation/submission
Hi there,
Is there any existing facilities to trigger some custom Javascript
code _after_ validating the form?
I'm now doing it with some Javascript tricks:
===
...
Event.observe(window, "load", function() {
var f = $("myform").onsubmit;
$("myform").onsubmit = function(e) {
return f(e) && customFunction();
};
});
...
function customFunction() {
//return true to submit
}
===
Notice that the custom function is only called _after_ validation
_and_ only if it was successful.
Since this is all boiler-plate I'm going to make it a component that
can be nested within , but before that I want to make sure
I'm not reinventing something that already exist. Or just tell me if
I'm going the wrong way and the _proper_ way to do it.
Your input is much appreciated.
Kenneth
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