var customers = [
               { ID: 0, Name: 'A', Info1: 'Info0' },
               { ID: 1, Name: 'B', Info1: 'Info1' },
               { ID: 2, Name: 'C', Info1: 'Info2' },
            ];
            activeSheet.autoGenerateColumns = true;
            activeSheet.setDataSource(customers);

$("#button1").click(function () {
activeSheet.clearPendingChanges();
   });

// Add button control to page
<input type="button" id="button1" value="button1"/>