C1Calendar includes several server-side events that allow you to customize the calendar programmatically in the code-behind. To invoke the server-side events, you have to set the AutoPostBack to True to post the data back to the server side.

The following table lists the events that you can use in your client scripts. These properties are defined on the server side, but the actual events or the name you declare for each JavaScript function are defined on the client side.

Event	Description
DisplayDateChanged	Fires when the DisplayDate property is changed by navigating.
SelectedDatesChanged	Fires when the SelectedDates property is changed by mouse clicking.