// <summary>
 /// Creates the Weekday.
 /// </summary>
 /// <param name="value">The value.</param>
 /// <returns></returns>
 /// <exception cref="System.ArgumentException">Invalid value for Interval.Weekday</exception>
 public static Weekday Create(String value)
 {
     return((Weekday)Weekday.GetItemByValue(value, typeof(Weekday)));
 }