Is there any way to set the SingleMonthSize of the calendar control in C#? I wish I can increase the size of the calendar but apparently I were not allowed to do that.

You can not directly adjust the size of the monthCalendar, set the Font size of the calendar instead, it would auto-size the monthCalendar to fit the font size, by default the font size of monthCalendar is 8.25, set it to whatever you want. for example:

f = new Font(this.monthCalendar1.Font.FontFamily, (float)10.2);

this.monthCalendar1.Font = f;

You can not directly adjust the size of the monthCalendar, set the Font size of the calendar instead, it would auto-size the monthCalendar to fit the font size, by default the font size of monthCalendar is 8.25, set it to whatever you want. for example:

f = new Font(this.monthCalendar1.Font.FontFamily, (float)10.2);

this.monthCalendar1.Font = f;