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Join Date: Aug 2007
Posts: 40
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Light Poster
Hi I want to populate my second drop-down menu based off of the value selected on my first drop down. Is there a function or a way of doin g this...
P.S my code is in a JSP:
P.S my code is in a JSP:
java Syntax (Toggle Plain Text)
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Join Date: Dec 2007
Posts: 6
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Newbie Poster
What you need to do the following:
1. Add the onchange event attribute to the 1st select tag
2. Create a javascript function called addNewValue for example.
Note: Place in the <head></head> tags
Ok, whats happening here, is that when an item is selected in your first select States, the onchange attribute event is fired, which in turn calls our addNewValue() javascript function. By the way, the $('Cities') notation is the same as document.getElementById.....
In the above example, for simplicity reasons
, we are just adding the selected value to the first element of the Cities select box.
1. Add the onchange event attribute to the 1st select tag
<select name="weatherStat" id="States" onchange="addNewValue();">
2. Create a javascript function called addNewValue for example.
Note: Place in the <head></head> tags
function addNewValue() {
$('Cities').options[0] = new Option($('States').value, 0);
}
Ok, whats happening here, is that when an item is selected in your first select States, the onchange attribute event is fired, which in turn calls our addNewValue() javascript function. By the way, the $('Cities') notation is the same as document.getElementById.....
In the above example, for simplicity reasons
, we are just adding the selected value to the first element of the Cities select box. Last edited by tommybobby : Dec 3rd, 2007 at 12:51 pm.
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