要获取当前枚举类型中的常量值的数组,代码如下-
using System; public class Demo { enum Vehicle {Car, Bus, Bike, Airplane} public static void Main() { try { Type type = typeof(int); string[] str = type.GetEnumNames(); Console.WriteLine("GetEnumNames() to return the constant name = " + str); Type type2 = type.GetEnumUnderlyingType(); Console.Write("Enum Underlying type = "+type2); Array arrObj = type.GetEnumValues(); Console.Write("Values = {0}"+arrObj); Console.WriteLine("\nListing constants .."); for (int i = 0; i < str.Length; i++) Console.Write("{0} ", str[i]); } catch (ArgumentException e) { Console.WriteLine("不是枚举!"); Console.Write("{0}", e.GetType(), e.Message); } } }
输出结果
这将产生以下输出-
不是枚举! System.ArgumentException
让我们看另一个例子-
using System; public class Demo { enum Vehicle {Car, Bus, Bike, Airplane} public static void Main() { try { Vehicle v = Vehicle.Bike; Type type = v.GetType(); string[] str = type.GetEnumNames(); Console.WriteLine("GetEnumName() to return the constant name = " + str); Type type2 = type.GetEnumUnderlyingType(); Console.Write("Enum Underlying type = "+type2); Array arrObj = type.GetEnumValues(); Console.Write("Values = "+arrObj); Console.WriteLine("\nListing constants .."); for (int i = 0; i < str.Length; i++) Console.Write("{0} ", str[i]); } catch (ArgumentException e) { Console.WriteLine("不是枚举!"); Console.Write("{0}", e.GetType(), e.Message); } } }
输出结果
这将产生以下输出-
GetEnumName() to return the constant name = System.String[] Enum Underlying type = System.Int32Values = Demo+Vehicle[] Listing constants .. Car Bus Bike Airplane