open
Fires when the calendar is opened
Event Data
e.sender kendo.ui.DateRangePicker
The widget instance which fired the event.
Example - subscribe to the "open" event during initialization
<div id="daterangepicker"></div>
<script>
$("#daterangepicker").kendoDateRangePicker({
    open: function(e) {
        e.preventDefault(); //prevent popup opening
    }
});
</script>Example - subscribe to the "open" event after initialization
<div id="daterangepicker"></div>
<script>
$("#daterangepicker").kendoDateRangePicker();
var daterangepicker = $("#daterangepicker").data("kendoDateRangePicker");
daterangepicker.bind("open", function(e) {
    e.preventDefault(); //prevent popup opening
});
</script>In this article