jQuery and Ajax

Date Picker : 
1.to embed jquery datepicker firstly add the following jquery files in header part
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.1/themes/smoothness/jquery-ui.css">
    <script src="~/Scripts/jquery-3.2.1.js"></script>
    <script src="~/Scripts/jquery-ui-1.12.1.js"></script>
2.<script>
    $(document).ready(function () {
        $('#PossibleStartDate').datepicker(); --this is the id field of the datefield 
        $('#PossibleEndDate').datepicker();
        $('#PossibleEndDate').on('leave', function () {
            alert(($(this).html()))
        });
    });

</script>