Edit this page


The OnPopupClosing client-side event handler is called just before a popup calendar or time view is closed.

The event handler receives two arguments:

  1. the object that fired the event.

  2. an event arguments object that exposes the following methods:OnPopupClosing event arguments object

Name Return Type Arguments Description
get_popupControl() RadTimeView or RadCalendar client-side object Returns the client object for the time view or calendar that is about to close.
set_cancel(value) bool Lets you prevent the popup from closing.

The following example uses the OnPopupClosing event to prevent the popup from closing if nothing is selected:

<telerik:RadDateTimePicker RenderMode="Lightweight" ID="RadDateTimePicker1" runat="server">
    <Calendar DayNameFormat="FirstLetter"
    <ClientEvents OnPopupClosing="popupClosing" />
function popupClosing(sender, eventArgs) {
    var popup = eventArgs.get_popupControl();

    if (popup == sender.get_calendar()) {
        if (popup.get_selectedDates().length == 0) {
            alert("You must select a date!");
    else if (!popup.getTime()) {
        alert("You must select a time!");

See Also

Is this article helpful? No Yes
Thank you for your feedback!

Give article feedback

Tell us how we can improve this article