javascript not getting data from sharepoint list

Question

I tried the below code from MSDN

function retrieveListItems() {

    var clientContext = new SP.ClientContext('http://www.vignesh.cloudappsportal.com');
    var oList = clientContext.get_web().get_lists().getByTitle('EmailId');
    clientContext.load(oList);

    clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));
    function onQuerySucceeded(sender, args) {
        SPListItems.push(sender); // pushing values into a global array to check in console
        SPListItems.push(args);
    }

    function onQueryFailed(sender, args) {
        alert('fail')
    }
}

oList is getting some values, but i get error in this.onQuerySucceeded

this is referring to window and so there is no function like this.onQuerySucceeded

Are you running the JavaScript within SharePoint environment? — Arsalan Adam Khatri
– Arsalan Adam Khatri, Commented Apr 21, 2015 at 5:19
Are you using plane .aspx page (i.e. page without sharepoint master page) ? — Rohit Waghela
– Rohit Waghela, Commented Apr 21, 2015 at 5:23
@ArsalanAdamKhatri yeah, the script is inside sharepoint app — Vignesh Subramanian
– Vignesh Subramanian, Commented Apr 21, 2015 at 5:24

Robert Lindgren · Accepted Answer · 2015-04-21 07:16:02Z

5

You are missing a couple of rows in a working script. First, after setting the oList variable you need to load it:

clientContext.load(oList);

Then you need to fetch the value by calling:

clientContext.executeQueryAsync(
    Function.createDelegate(this, onQuerySucceeded), 
    Function.createDelegate(this, onQueryFailed)
);

Now, you need to create the following two methods (for success and failure of the execution):

 function onQuerySucceeded(sender, args){
     // here you can work with oList
 }

 function onQueryFailed(sender, args) {
    alert('fail')
 }

edited Apr 21, 2015 at 7:16

answered Apr 21, 2015 at 5:31

Robert Lindgren

24.5k12 gold badges55 silver badges79 bronze badges

Thanks @robert will the args in onQuerySucceeded have the list of items under the column?

Vignesh Subramanian
– Vignesh Subramanian

2015-04-21 05:36:24 +00:00
Commented Apr 21, 2015 at 5:36
Please check my updated question

Vignesh Subramanian
– Vignesh Subramanian

2015-04-21 05:41:19 +00:00
Commented Apr 21, 2015 at 5:41
this is referring to window when i checked in console

Vignesh Subramanian
– Vignesh Subramanian

2015-04-21 05:52:09 +00:00
Commented Apr 21, 2015 at 5:52
1

Remove the thisfrom the create delegate, as I have done in my update answer

Robert Lindgren
– Robert Lindgren

2015-04-21 07:16:25 +00:00
Commented Apr 21, 2015 at 7:16

Add a comment |

Ronak Patel · Accepted Answer · 2015-04-21 08:03:54Z

If your ultimate goal is to get SharePoint list items using JavaScript, then you can refer below set of functions.

Also you can refer this useful msdn blog.

        function getListItems () {
            try {
                var clientContext = new SP.ClientContext('http://www.vignesh.cloudappsportal.com');
                var oList = clientContext.get_web().get_lists().getByTitle('EmailId');
                var camlQuery = new SP.CamlQuery();
                this.collListItems = oList.getItems(camlQuery);
                clientContext.load(collListItems); 
                clientContext.executeQueryAsync(onSuccess, onFail);
            }
            catch (err) {
                alert('Error while getting list items');
            }
        }

        function onSuccess () {
            var listItemEnumerator = collListItems.getEnumerator();
            while (listItemEnumerator.moveNext()) {
                oListItem = listItemEnumerator.get_current();
                alert(oListItem.get_item('Title'));
            }
        }

        function onFail (sender, args) {
            alert(args.get_message());
        }

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