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I have a list with a lot of items in it I need to know the list item count the following is my code:

var sListId = SP.ListOperation.Selection.getSelectedList();
var oWeb = item_clientContext.get_web();
var oList = oWeb.get_lists().getById(sListId);
var count = ???

How can I determine the count of items I have? I tried get_count() but did not work.

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up vote 5 down vote accepted

Since you're using the JavaScript CSOM you need to fetch the properties asynchronously. Your code should look something like this:

var oList;
function theFunction() {
    var sListId = SP.ListOperation.Selection.getSelectedList();
    var oWeb = item_clientContext.get_web();
    oList = oWeb.get_lists().getById(sListId);

    // .load() tells CSOM to load the properties of this object
    // multiple .load()s can be stacked

    // now start the asynchronous call and perform all commands
    item_clientContext.executeQueryAsync(onSuccess, onFail);
    // method will exit here and onSuccess or OnFail will be called asynchronously
function onSuccess(sender, args) {
    alert('No of rows: ' + oList.get_itemCount());
function onFail(sender, args) {
    alert('Request failed.\n' + args.get_message() + '\n' + args.get_stackTrace());


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See here

oList.ItemCount has your property.

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Hi this is javascript, not server side. – IanCian Aug 19 '11 at 16:16
The error is that it is telling me that the list is not initialized. so i tried the following before executing var oList = oWeb.get_lists().getById(sListId); item_clientContext.load(oList); item_clientContext.executeQueryAsync(); var count = oList.get_itemCount(); – IanCian Aug 19 '11 at 16:45
still with problem of not initialized – IanCian Aug 19 '11 at 16:46
@IanCian: So oList is null? Did you try var count = oList.ItemCount;? – Kit Menke Aug 19 '11 at 19:27
oList will be initialized in onSuccess callback – Andrey Markeev Aug 19 '11 at 20:50

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