form validation

arcturis · Apr 29, 2003

I though this was going to be simple, but...

Anyways, here's the problem, I've got a simple form, just one group of radio buttons (for a voting poll), that i need to have some validation (at least one need to be selected) then submit the form to a pop-up, where my vbscript does a database insert then draws a bar graph.

I can ge the form to submit to the pop-up, but not validate before hand. Any help woul dbe great.

Thanks

chmohan · Apr 29, 2003

see thread216-537307 and check if any of the option button is checked by using a loop

GUJUm0deL · Apr 29, 2003

arcturis, is this what you were looking for??

<html>
<head>

<script>
function YourChoice() {
if(!document.form1.choice[0].checked && !document.form1.choice[1].checked &&!document.form1.choice[2].checked)
{
alert("please choose one&quot

;
return false;
}
return true;
}
</script>
</head>

<body bgcolor="#FFFFFF" text="#000000">
<form name="form1" method="post" action="mailto:mmm@aol.com" onSubmit="return YourChoice();">
<input type="radio" name="choice" value="1">
<input type="radio" name="choice" value="2">
<input type="radio" name="choice" value="3">

<input type="submit" name="Submit" value="Submit">
</form>
</body>
</html>

The above will throw an alert if no radio button is selected...

Forget the Nobel Peace prize, I just want to take over the world!! [hammer]

arcturis · Apr 29, 2003

GUJUm0del, thanks for the reply, but this statement

Code:

if(!document.form1.choice[0].checked && !document.form1.choice[1].checked &&!document.form1.choice[2].checked)

would get hard to manage if there are more than three radio buttons. By nature radio button work in groups, so either one is checked, or none. Is there an easy to do this? or am i outta luck?

Arcturis

Pimonkey · Apr 29, 2003

Do a for loop:

var checkedpos=-1;
for (var i=0; i < 3; i++) {
if (document.form1.choice.checked) {
checkedpos = i;
break;
}
}
if (checkedpos == -1)
alert("Please check a thingy"

Pimonkey · Apr 29, 2003

That's:

var checkedpos=-1;
for (var i=0; i < 3; i++) {
if (document.form1.choice.checked) {
checkedpos = i;
break;
}
}
if (checkedpos == -1)
alert("Please check a thingy"

Sorry, I hate this TGML stuff...its very bad for program code, especially when I like to use "i" as a counter.

GUJUm0deL · Apr 29, 2003

Looks like Pimonkey got it before me, lol...
Yeah, you can use loops for the same effect...

Forget the Nobel Peace prize, I just want to take over the world!! [hammer]

arcturis · Apr 30, 2003

Thanks guys, now on to finishing this voting poll. Next time i say "sure, that's easy", i'll kick my self.

Arc.

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form validation

arcturis

IS-IT--Management

chmohan

Programmer

GUJUm0deL

Programmer

arcturis

IS-IT--Management

Pimonkey

Programmer

Pimonkey

Programmer

GUJUm0deL

Programmer

arcturis

IS-IT--Management

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