Hi,

This can only be done through custom drawing. First, toggle off the default header rendering by setting Calendar.WeekRangeSettings.TitleFormat to a value that will produce an empty string (double space appears to be working) and Calendar.WeekRangeSettings.TitleSeparator to an empty string:

calendar.WeekRangeSettings.TitleFormat = "  ";
calendar.WeekRangeSettings.TitleSeparator = ""; 

Then, set Calendar.CustomDraw to CustomDrawElements.WeekRangeHeader and handle the Calendar.Draw event. Use the following code in the event handler:

private void _calendar_Draw(object sender, DrawEventArgs e)
{
	if (e.Element == CustomDrawElements.WeekRangeHeader)
	{
		using (Brush textBrush = new SolidBrush(e.Style.HeaderTextColor))
		{
			// Note: Using centered string format for simplicity; generally
			// the string format should correspond to the e.Style.HeaderTextAlignment
			StringFormat f = new StringFormat();
			f.Alignment = StringAlignment.Center;
			f.LineAlignment = StringAlignment.Center;
			e.Graphics.DrawString(e.Date.ToString("MMM yyyy"), e.Style.HeaderFont, textBrush, e.Bounds, f);
		}
	}
} 

Let me know if this helps.

Regards,
Meppy