Question

What is the basic difference between OnSelectionChanged & OnDayRender of <asp:Calendar>

Instead of down-voting please try to answer my question as in future this will be useful for the new programmers like me.

thank you.

Answer 1

SelectionChanged is an event which is triggered when the User has selected a day, a week, or an entire month by clicking the date selector controls.

DayRender is an event which is triggered when ASP.NET has rendered a day of the calendar on serverside.

The DayRender event is raised when each date cell in the Calendar
control is created. You can control the contents and formatting of a
date cell when it is created by providing code in the event handler
for the DayRender event.