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Subject:
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Enabling and Disabling form elements
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Posted By:
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socoolbrewster
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Post Date:
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2/18/2006 11:58:20 AM
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I'm developing a website that has a large input form.
What I want to do is disable a few form input elements that
only become enabled when a user has selected another form
element.
As a tester, I've been playing around with some test code
I've written - but my theory doesnt work as when the code
was tested in IE - I get a javascript error saying element not an
object or null.
Could anyone advise me where I'm going wrong with the following simply
script:
<html>
<head><title>Test Doc</title>
<script language="javascript">
function formdis(){
document.form1.box3.disabled=false;
}
</script>
</head>
<body>
<form id="form1" method="post" action="#">
<input type="text" id="box1" size="25" />
<input type="text" id="box2" size="25" onclick="formdis()" />
<input type="text" id="box3" name="box3" size="25" disabled="disabled" value="extra choice" />
</form>
</body>
</html>
Gaz
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Reply By:
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vinod_yadav1919
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Reply Date:
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2/18/2006 12:29:00 PM
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Hi Socoolbrewster!!
either use
<form id="form1" method="post" action="#" name="form1" >
use (1) document.forms[0].box3.disabled=false;
or (2) document.form1.box3.disabled=false;
with
<form id="form1" method="post" action="#">
use (1) document.forms[0].box3.disabled=false;
Hope this will help you
Cheers :)
vinod
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Reply By:
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joefawcett
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Reply Date:
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2/18/2006 4:22:24 PM
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Either name your form and elements using the name attribute or, if you want to access by id then use:document.getElementById("box3").disabled = false; to enable. You will need to name the elements if you wish to read the form data when it's submitted.
--
Joe (Microsoft MVP - XML)
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Reply By:
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jitendersingal
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Reply Date:
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2/21/2006 4:48:30 AM
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Is it possible to show a controls enabled/disabled state using javascript?
examples:
if radiobuttonlist web control set enabled = false , in javascript
cannot enable it.
because radiobuttonlist generate some span tag , i cannot catch it compete.
Have some javascript code suit, to wraper web control property and method.
thanks,
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Reply By:
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Greg Griffiths
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Reply Date:
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2/21/2006 3:45:29 PM
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jitendersingal can you provide some more detail on your requirements ?
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