OnPopupOpening

The OnPopupOpening client-side event handler is called just before a popup calendar is initialized to the current selection in the input area and then displayed.

The event handler receives two arguments:

1. the object that fired the event.

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

Name	Return Type	Arguments	Description
get_popupControl()	RadCalendar client-side object		Returns the client object for the time view or calendar that is about to be displayed.
set_cancelCalendarSynchronization(value)		bool	Lets you prevent the popup control from synchronizing its value to the value in the input area.
set_cancel(value)		bool	Lets you prevent the popup from appearing.

The following example demonstrates the OnPopupOpening event:

<telerik:RadDateRangePicker RenderMode="Lightweight" ID="RadDateRadPicker1" runat="server">
    <ClientEvents OnPopupOpening="popupOpening" />
</telerik:RadDateRangePicker>

function popupOpening(sender, args) {
    alert("popup is opening");
}

Check out sample use of this event in the Client-Side Events demo

See Also

• Client-side Events Overview

• OnPopupClosing