sharepoint 2010 client object model javascript list item ListEnumerator count

how to sharepoint 2010 client object model javascript list item ListEnumerator count

In this post you will learn about how to retrieve all the items from a list using ECMA\JavaScript client object model, and also how to enumerate through them. The code below will retrive items from all folders and sub-folders as well. To retrieve items from a specific folder see the post Here

For below script, I have used  a custom list ‘Testlist” which has columns (“Title and Department”) and has three list items.

You can copy and paste the below script in a Content editor webpart for testing purposes.

my demo source.

return SharePoint List item Count !

    function ViewItem() {

        var context = new SP.ClientContext.get_current();

        var web = context.get_web();

        var list = web.get_lists().getByTitle('test');  //list name

        var query = SP.CamlQuery.createAllItemsQuery();

        allItems = list.getItems(query);

        context.load(allItems);

        context.executeQueryAsync(Function.createDelegate(this, this.success), Function.createDelegate(this, this.failed));

    }

    function success() {

        var count = allItems.get_count();

        alert(count);

    }

    function failed(sender, args) {

        alert("failed. Message:" + args.get_message());

    }

Please Note : You might need to fix the quotes ” & ‘ after you copy the below code.

<script src="/_layouts/SP.js" type="text/ecmascript"></script>
<script type="text/javascript">

function ViewItem()
{
var context = new SP.ClientContext.get_current();
var web = context.get_web();
var list = web.get_lists().getByTitle('Testlist');

var query = SP.CamlQuery.createAllItemsQuery();
allItems = list.getItems(query);
context.load(allItems, 'Include(Title,Department)');

context.executeQueryAsync(Function.createDelegate(this, this.success), Function.createDelegate(this, this.failed));
}

function success() {

var TextFiled = "";
var ListEnumerator = this.allItems.getEnumerator();

while(ListEnumerator.moveNext())
{
var currentItem = ListEnumerator.get_current();
TextFiled  += currentItem.get_item('Title') + '-' +currentItem.get_item('Department') + '\n';
}
alert(TextFiled);
}

function failed(sender, args) {
alert("failed. Message:" + args.get_message());
}

</script>

<a href="#" onclick="Javascript:ViewItem();">View Items</a>
Result -

Also See:
Get item columns\fields using Client Object Model Ecmascript

Retrieve items from a specific Folder Ecmascript\Javascript client object model SharePoint 2010