Options in Drop down box

Paul BRYAN · Dec 2, 2003

Hi

I'm using IE to create a form that includes a drop down box and a submit
button .

The drop down box contains a number of options, but one of the options is no
longer available.

If the unavailable option is chosen and the submit button is pressed, how do
I get a pop up box to appear telling the user the option is no longer
available.

Hope this makes sense

Paul

brucie · Dec 2, 2003

If the unavailable option is chosen and the submit button is pressed, how do
I get a pop up box to appear telling the user the option is no longer
available.

the only reliable way to do it would be to either remove the option
server side so its not there to be selected or check if an option is no
longer valid when the form is submitted and return an error message. you
could use a bit of JS to pop up an alert but you'll still need to do the
server side checking.

Steve R. · Dec 2, 2003

Paul BRYAN wrote in message ...

The drop down box contains a number of options, but one of the options is no
longer available.

Surely the most "User-Friendly" action is to remove the option itself. LOL.

Steve.

Louis Somers · Dec 2, 2003

Like others say, best is to remove the option, but if you insist, here is
some javascript that will alert the yser (but not prevent).

<html><head>
<script type="text/javascript" language="JavaScript">
function CheckAvail(theForm)
{
var mytext = theForm.selection.value;
if (mytext == 's002') {
alert('potatoes have been sold out');
theForm.thetext.focus();
}
}
</script>
<title>limit chars</title>
</head>
<body>
<form method="post" action="yoururl" id="myForm">
<select name="selection" onChange="CheckAvail(myForm);">
<option value="s001">flowers
<option value="s002">potatoes
<option value="s003">cheese
<option value="s004">beans
</select>
</form>
</body></html>

Olaf Studt · Dec 3, 2003

Louis said:
Like others say, best is to remove the option, but if you insist, here is
some javascript that will alert the yser (but not prevent).
[...]
<form method="post" action="yoururl" id="myForm">
<select name="selection" onChange="CheckAvail(myForm);">
[options]
</select>
</form>

Another possibility is

<form ... onSubmit="return myFunc();">

where, if myFunc returns false , the submission is
cancelled - _*IF*_ the user has enabled JavaScript!

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Options in Drop down box

Paul BRYAN

brucie

Steve R.

Louis Somers

Olaf Studt

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