Difference between revisions of "Add Options to a Combo Box Using JavaScript"
From SmartWiki
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You can use a JavaScript function to modify the options available in a pull-down box on the page. | You can use a JavaScript function to modify the options available in a pull-down box on the page. | ||
| − | The following example adds a new blank selection at the top of the ''starthour'' field at Level 2: | + | The following example adds a new blank selection at the top of the ''starthour'' field at '''Level 2''': |
<pre> | <pre> | ||
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} | } | ||
</pre> | </pre> | ||
| + | |||
| + | The options available are: | ||
| + | :''document.forms[0].starthour.add(new Option('''''Display text, Store value, defaultSelected, selected'''''), document.forms[0].starthour.options[0]) '' | ||
| + | |||
[[Category:JavaScript]] | [[Category:JavaScript]] | ||
Revision as of 14:16, 31 July 2009
You can use a JavaScript function to modify the options available in a pull-down box on the page.
The following example adds a new blank selection at the top of the starthour field at Level 2:
try{
document.forms[0].starthour.add(new Option("", "", true, true), document.forms[0].starthour.options[0])
}
catch(e){ //in IE, try the below version instead of add()
document.forms[0].starthour.add(new Option("", "", true, true), 0)
}
The options available are:
- document.forms[0].starthour.add(new Option(Display text, Store value, defaultSelected, selected), document.forms[0].starthour.options[0])
