populating dropdownlist based on another in javascript

Question

I have this in my html

 function populate(myop) {
        var selection = myop.options[myop.selectedIndex].text;

        PopulateTaskddl(selection);
    }

  <select id="ddljobname_In" name="cpname_job" onchange="populate(this.value)" style="margin-left: 10px; color: Black;">
                </select>

it gives me error says " Populate is undefined ..

Any help ?

Is your populate function inside inside a <script></script> tag? — Kaizen Programmer
– Kaizen Programmer, Commented Aug 7, 2014 at 21:34

Julian F. Weinert · Accepted Answer · 2014-08-07 21:40:44Z

2

You have to put your JavaScript function in script tags, so that your browser knows that it's JavaScript, not HTML.

JS is not HTML and you have to declare so. You might start with some tutorials and learn how to use HTML, CSS, JavaScript & co. before posting on a Q&A platform like StackOverflow.

<script>
    function populate(myop) {
        var selection = myop.options[myop.selectionIndex].text;
        PopulateTaskddl(selection);
    }
<script>
<select id="ddljobname_In" name="cpname_job" onchange="populate(this.value)" style="margin-left: 10px; color: Black;">
</select>

answered Aug 7, 2014 at 21:40

Julian F. Weinert

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Comments

Julian F. Weinert · Accepted Answer · 2014-08-07 21:42:29Z

-1

<select id="ddljobname_In" name="cpname_job" onchange="populate(this)" style="margin-left: 10px; color: Black;">
</select>
<script type="text/javascript">
    function populate(myop) {
        var selection = myop.options[myop.selectedIndex].text;
        PopulateTaskddl(selection);
    }
</script>

edited Aug 7, 2014 at 21:42

Julian F. Weinert

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answered Aug 7, 2014 at 21:39

one1day

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3 Comments

Julian F. Weinert Over a year ago

You shouldn't. It's not your solution... =)

one1day Over a year ago

Yeah you actually right around 100 percent .. Thanks @tymeJV

one1day Over a year ago

Can anyone do it then :)

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