0
edits
Changes
no edit summary
You can use a JavaScript function to modify the options available in a pull-down box on the page.
The following example removes two different [[Types]] available for '''Level 2''' records:
<pre>
function RemoveTypes()
{
var i=0;
var frm = document.forms[0];
// at Level 1 use document.form1 instead of document.forms[0]
// Note: this loop starts at the bottom to avoid skipping any due to re-indexing as they are removed.
for (i=frm.eventtype.options.length-1;i>=0;i--)
{
if (frm.eventtype.options[i].text=='FirstType') frm.eventtype.options[i]=null;
if (frm.eventtype.options[i].text=='SecondType') frm.eventtype.options[i]=null;
}
}
RemoveTypes();
</pre>
'''Note:''' the same syntax can be used at Level 1, replacing '''document.forms[0]''' with '''document.form1'''
==See Also==
* [[Add Options to a Combo Box Using JavaScript]]
[[Category:JavaScript]]
The following example removes two different [[Types]] available for '''Level 2''' records:
<pre>
function RemoveTypes()
{
var i=0;
var frm = document.forms[0];
// at Level 1 use document.form1 instead of document.forms[0]
// Note: this loop starts at the bottom to avoid skipping any due to re-indexing as they are removed.
for (i=frm.eventtype.options.length-1;i>=0;i--)
{
if (frm.eventtype.options[i].text=='FirstType') frm.eventtype.options[i]=null;
if (frm.eventtype.options[i].text=='SecondType') frm.eventtype.options[i]=null;
}
}
RemoveTypes();
</pre>
'''Note:''' the same syntax can be used at Level 1, replacing '''document.forms[0]''' with '''document.form1'''
==See Also==
* [[Add Options to a Combo Box Using JavaScript]]
[[Category:JavaScript]]
