telerik:RadDatePicker OnValueChanging

<script type="text/javascript">

        function ValueChanging(sender, args)

        {

            if (sender.get_dateFormat() == "MM/yyyy")

            {

                var selectedDay = sender.get_owner().get_calendar().get_selectedDates()[0][2];

                var value = args.get_newValue();

                var monthPlace = sender.get_dateFormatInfo().DateSlots["Month"];

                if (monthPlace == 1)

                {

                    args.set_newValue(selectedDay + "/" + value);

                }

                else

                {

                    var monthAndYear = value.split("/");

                    args.set_newValue(monthAndYear[0] + "/" + selectedDay + "/" + monthAndYear[1]);

                }

            }

        }

    </script>

 

    <telerik:RadDatePicker ID="RadDatePicker1" runat="server">

        <DateInput ID="DateInput1" DateFormat="MM/yyyy" runat="server"

            ClientEvents-OnValueChanging="ValueChanging" />

    </telerik:RadDatePicker>