-
StackOverflow 文件
-
C# Language 教程
-
列舉
-
Enum to string and back
public enum DayOfWeek
{
Sunday,
Monday,
Tuesday,
Wednesday,
Thursday,
Friday,
Saturday
}
// Enum to string
string thursday = DayOfWeek.Thursday.ToString(); // "Thursday"
string seventhDay = Enum.GetName(typeof(DayOfWeek), 6); // "Saturday"
string monday = Enum.GetName(typeof(DayOfWeek), DayOfWeek.Monday); // "Monday"
// String to enum (.NET 4.0+ only - see below for alternative syntax for earlier .NET versions)
DayOfWeek tuesday;
Enum.TryParse("Tuesday", out tuesday); // DayOfWeek.Tuesday
DayOfWeek sunday;
bool matchFound1 = Enum.TryParse("SUNDAY", out sunday); // Returns false (case-sensitive match)
DayOfWeek wednesday;
bool matchFound2 = Enum.TryParse("WEDNESDAY", true, out wednesday); // Returns true; DayOfWeek.Wednesday (case-insensitive match)
// String to enum (all .NET versions)
DayOfWeek friday = (DayOfWeek)Enum.Parse(typeof(DayOfWeek), "Friday"); // DayOfWeek.Friday
DayOfWeek caturday = (DayOfWeek)Enum.Parse(typeof(DayOfWeek), "Caturady"); // Thows ArgumentException
// All names of an enum type as strings
string[] weekdays = Enum.GetNames(typeof(DayOfWeek));