OnColumnHeaderClick

The OnColumnHeaderClick client-side event handler of the ASP NET AJAX Calendar is called when the user is about to select a column of dates by clicking on a column header. The event occurs only if the ShowColumnHeaders and UseColumnHeadersAsSelectors properties are set to true.

The event handler receives two arguments:

1. the RadCalendar object that fired the event.

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

Name	Return Type	Arguments	Description
get_index()	int		Returns the 1-based index of the column that was clicked.
get_domElement()	HTML element		Returns the DOM element for the column header that was clicked.
set_cancel(value)		bool	Lets you prevent the click from selecting the column of dates.

The following example uses the OnColumnHeaderClick event to confirm the selection:

ASPNET

<telerik:RadCalendar RenderMode="Lightweight" ID="RadCalendar1" runat="server">
	<ClientEvents OnColumnHeaderClick="confirmColumnSelection" />
</telerik:RadCalendar>

JavaScript

function confirmColumnSelection(sender, eventArgs) {
	var msg = "Do you want to change the selection for column " + eventArgs.get_index();
	var title = eventArgs.get_domElement().title;

	if (title != "") {
		msg = msg + " (" + title + ")";
	}

	msg = msg + "?";
	eventArgs.set_cancel(!confirm(msg));
}

See Also

• OnRowHeaderClick

• OnViewSelectorClick

• OnDateClick