Kendo nulls and sorting...

Sort on Agent State and you will see some nulls mixed in across the uninstalled areas

by sparksterz

HTML

<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.3.1315/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.3.1315/styles/kendo.default.min.css">
<script src="http://cdn.kendostatic.com/2013.2.716/js/kendo.all.min.js"></script>
<div id="grid"></div>

JavaScript

var newInfo = [{
    "CustomerGuid": "51098e04-c0c2-409c-b316-a08d00945161",
        "AgentGuid": "6dc3cdc7-7847-4124-9b38-a08d00946cbb",
        "GroupGuid": "77f5395e-a8b6-4486-ba65-a093011d29a3",
        "CustomerName": "Secret Agent Testing",
        "AgentDescription": "Agent 1",
        "GroupName": "Test Group",
        "RegistrationCode": "L915-GATF-9DOK-KRWB",
        "RegistrationDate": "/Date(1342812672000)/",
        "LastHeartbeat": "/Date(1342812723000)/",
        "AgentState": "OK",
        "AgentVersion": "1.0.0.49014",
        "Registration": "",
        "RegistrationDateFormatted": "2012-07-20T19:31:12.000Z",
        "LastHeartbeatDateFormatted": "2012-07-20T19:32:03.000Z",
        "guid": "a215cc2e-b52d-4bde-Acea-b4d48c152e00"
}, {
    "CustomerGuid": "e5c4f609-3276-4d79-8225-a04201271158",
        "AgentGuid": "f58fd905-16d3-4ca0-9166-a08c010f4c33",
        "GroupGuid": "785cbe39-1352-442a-aea5-aa7851e5f763",
        "CustomerName": "John L",
        "AgentDescription": "Test Agent By Louis 3",
        "GroupName": "Linda-Final Release Testing",
        "RegistrationCode": "123451314",
        "RegistrationDate": null,
        "LastHeartbeat": "/Date(1346188875000)/",
        "AgentState": "",
        "AgentVersion": null,
        "Registration": "",
        "LastHeartbeatDateFormatted": null,
        "RegistrationDateFormatted": null
}, {
    "CustomerGuid": "e5c4f609-3276-4d79-8225-a04201271158",
        "AgentGuid": "7d8adf1e-bc6e-45bc-a515-a042012a89c7",
        "GroupGuid": "785cbe39-1352-442a-aea5-aa7851e5f763",
        "CustomerName": "John L",
        "AgentDescription": "Testing Agent on Windows 7",
        "GroupName": "Linda-Final Release Testing",
        "RegistrationCode": "1234",
        "RegistrationDate": "/Date(1354757174000)/",
        "LastHeartbeat": "/Date(1354835230000)/",
        "AgentState": "Requires Attention",
        "AgentVersion": "1.1.0.54106",
        "LastHeartbeatDateFormatted": null,
       ...