Change Form Field Value Prior to submit

[r0adhog]

I am trying to do some form validation.
Is there a way with vb script to change the value of a field
on a form prior to submit.

 

[Ray at]

You could do this with client-side script, if you like. But, if you're
going to change it and you know what you're going to change it to, why not
do it in the ASP code that processes the form submission? Can you be a
little more specific about what you're trying to do?

Ray at work

 

[r0adhog]

Ray/Curt,

I guess I could do it after the submit, was looking to do something like
If x = "true" then
document.MyForm.all("FieldName").value =
CleanedUp(document.MyForm.all("FieldName").value)
document.MyForm.summit()
End If

Will that work?

rh

 

[Ray at]

Well, this would be the client-side approach, not the ASP approach. As Curt
suggested, you should not use VBScript for client side scripting. Try
something like:

<script type="text/javascript">
function myFunction(f) {
// What is x?
var x = true;
var v = f.FieldName.value
if(x) {f.FieldName.value=CleanedUp(v); }
return true;
}

function CleanedUp(s) {
return 'what should this be?';
}
</script>


<form onsubmit="return myFunction(this);">


Again, what are you trying to do? You're not doing this to deal with
apostrophes or anything, I hope, are you?

Ray at work

 

[Dave Anderson]

I guess I could do it after the submit, was looking to do something
like If x = "true" then
document.MyForm.all("FieldName").value =
CleanedUp(document.MyForm.all("FieldName").value)
document.MyForm.summit()
End If

Will that work?

It pains me to say, "probably" (except for the misspelled submit() method),
but it certainly depends on intercepting the submission.

It pains me for three reasons: (1) VBScript on the client, (2) the use of
..all, and (3) referencing a collection with parentheses instead of brackets.
Internet Explorer lets you get away with all three, but I don't consider
that a good thing.

Generally speaking, form element references ought to look like this:

document.MyForm.elements["FieldName"]

If you don't use funky characters for naming your fields (and don't collide
with the FORM element's property/method namespace, you can get away with
this:

document.MyForm.FieldName

Examples that require the former:

<INPUT NAME="Address(2)"> **
<INPUT NAME="submit"> ***

I object to VBScript on the client for religious reasons, FWIW.



**I've actually seen this!!
***Probably one of the most common newbie errors


--
Dave Anderson

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[Ray at]

I object to VBScript on the client for religious reasons, FWIW.

This topic doesn't seem to be addressed in my current reading, the Complete
Idiot's Guide to Understanding Judaism, so I guess it must be some other
religion.

Ray at work