GetItemCount for an external list returning zero

Question

Hi,
I need to get the count of items in an external list in the client side. I have used the ecmascript to get the count.
However I am getting the count as 0. For native lists, it is returning the count.
<script type="text/javascript">
ExecuteOrDelayUntilScriptLoaded(MainFunction, "sp.js");
var objContext = null;
var objWeb = null    
var objList = null;
var objItem = null;
    function MainFunction() {  
        objContext = new SP.ClientContext.get_current();
        objWeb = objContext.get_web();  
        objList = objWeb.get_lists().getByTitle("Product");
        objContext.load(objList);
        objContext.executeQueryAsync(Function.createDelegate(this, this.onSuccess), Function.createDelegate(this, this.onFail));  
    function onSuccess(sender, args) {
        alert('Item Count: ' + objList.get_itemCount());
    function onFail(sender, args) {  
        alert('Some error has occured.');  
 </script>
Please let me know what I am missing.

Answer 1

Hi,
Why are you doing this if its an external list?
objContext = new SP.ClientContext.get_current();
objWeb = objContext.get_web();
Provide the appropriate web object where this external list resides.