https://www.syncfusion.com/kb/9312/how-to-customize-calendar-header
In this article I understood how to change a day. I need to change a month/year.For example Now is July 2021.but I want to show September 2021 or September 2022 on the default.Please help me and say how can I do it.Because if I use
private DateTime selectedDate = DateTime.Now.AddMonths(-5);
it make this date in purple circe but default month is July