Closed
Bug 113652
Opened 23 years ago
Closed 23 years ago
Options list can not be cleared by a function call
Categories
(Core :: DOM: Events, defect)
Tracking
()
VERIFIED
INVALID
People
(Reporter: jw_12, Assigned: joki)
Details
From Bugzilla Helper:
Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:0.9.6) Gecko/20011120
BuildID: 2001112009
An Options Listbox can not be cleared by assigning options[0].selected= false
Worked OK in Mozilla 0.9.5 (Build ID 2001101117). Works OK in Nav 4.7X
See example below
Reproducible: Always
Steps to Reproduce:
1.Click on the Clear button
2.The option box does not get cleared
Actual Results: The option box is not cleared
Expected Results: option box is cleared
Example to demonstrate the bug:
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript">
function init() {document.form1.menu1.options[0].selected= false}
</script>
</head>
<body>
<form name="form1">
<input type="button" name="Button1" value="Clear" onClick="init()">
<br><br>
<select name="menu1">
<option>A1</option>
<option>A2</option>
</select>
</form>
</body>
</html>
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Comment 1•23 years ago
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Um... a size="1" select must always have a selected option. If you make it
size not 1, this code will work.
I see identical behavior here in Mozilla and Netscape 4 (both on Linux)
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Comment 2•23 years ago
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Yes. That this worked pre-0.9.6 was bad behavior. It's fixed now. :) In all
cases that I am aware of, a single select with non-disabled options always
manages to keep a selected option.
Hmm, note to self: if a <select> has only disabled options in it, and we set one
of them to disabled=false, will that one be selected? I am pretty sure that
enabling an optgroup does not do this. Enabling the select itself needs to
perform the action as well. All three of these cases *should* select something.
Setting INVALID per comments from BZ and JK
Status: UNCONFIRMED → RESOLVED
Closed: 23 years ago
Resolution: --- → INVALID
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Updated•23 years ago
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Status: RESOLVED → VERIFIED
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Comment 4•23 years ago
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verifying
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Description
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