Get Kendo grid Count

HTML

<script src="http://cdn.kendostatic.com/2012.3.1114/js/kendo.all.min.js"></script>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.3.1114/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.3.1114/styles/kendo.default.min.css">
 <div>
     Grid Row count by "tbody" = <span id="GridRowCount"></span>
     <br/>
     Grid Row count by "view" = <span id="GridRowCount1"></span>
     <br/>
     Grid Row count by "tbody.find" = <span id="GridRowCount2"></span>
     <br/>
     Grid Row count by "dataSource.total" = <span id="GridRowCount3"></span>
     <div id="Grid"></div>
</div>

JavaScript

$("#Grid").kendoGrid({     
     dataSource: {
         data: [
             { "Dept": "ACT", "A": 10, "B": 2010, "Total": 7542 },
             { "Dept": "BCT", "A": 20, "B": 2010, "Total": 7542 },
             { "Dept": "CCT", "A": 20, "B": 2010, "Total": 7542 }
         ]
     },
     columns: [{
         field: "Dept",
         title: "Dapartment"
     }, {
         field: "A"
     }, {
         field: "B"
     }, {
         field: "Total"
     }
    ]
 });

$('#GridRowCount').text($("#Grid").data('kendoGrid').tbody[0].rows.length);
$('#GridRowCount1').text($("#Grid").data('kendoGrid').dataSource.view().length);
$('#GridRowCount2').text($("#Grid").data('kendoGrid').tbody.find('>tr').length);
$('#GridRowCount3').text($("#Grid").data('kendoGrid').dataSource.total());