Specifies the display format for the days of the week on a System.Web.UI.WebControls.Calendar control.
In some cultures, DayNameFormat.FirstLetter and DayNameFormat.FirstTwoLetter display identical values for one or more days of the week. In these cultures, consider using DayNameFormat.Shortest, which displays the shortest abbreviation possible without using identical abbreviations.
The days of the week displayed with just the first letter. For example, M represents Monday.
The days of the week displayed with just the first two letters. For example, Mo represents Monday.
The days of the week displayed in full format. For example, Monday.
The days of the week displayed in abbreviated format. For example, Mon represents Monday.
The days of the week displayed in the shortest abbreviation format possible for the current culture.