Any idea why this is not working 

<div id="combo"></div>
<button onclick = SetValue>SetByValue</button>

<script>
$(function () {

var data = [
{ "ID":1, "Name": "John Smith", "Age": 45 },
{ "ID":2, "Name": "Mary Johnson", "Age": 32 },
{ "ID":3, "Name": "Bob Ferguson", "Age": 27 }
];

$("#combo").igCombo({
dataSource: data, //JSON Array defined above
valueKey: "ID",
textKey: "Name",
itemTemplate: "<div>${ID} - ${Name}</div>"
});
});

function SetValue(){
var item = $("#combo").igCombo("itemByValue", "2");
$("#combo").igCombo("selectedIndex", item.index);

}
</script>

I want to select combo based on  value. According to this post it should work http://www.infragistics.com/community/forums/p/68712/347998.aspx

-Manish