The commandCallBack() method invokes the server-side Command event using AJAX CallBack.
It is useful for sending navigation commands such as next, previous, or jump-to-date requests.
DayPilot.Calendar.commandCallBack(command, data)command (string) - command name (custom)
data (object) - additional custom data
This legacy helper is applicable to the ASP.NET WebForms, ASP.NET MVC, and Java editions.
dp.commandCallBack("next", data);