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 () {
var dirtyRows = activeSheet.getDirtyRows();
            var len = dirtyRows.length;
            if (len > 0) {
                for (var i = 0; i < len; i++) {
                    var dr = dirtyRows[i];
                    alert("row:" + dr.row);
}
}
   });

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