C# 中的 Type.GetEnumValues() 方法
C# 中的 Type.GetEnumValues() 方法返回一个数组,其中包含当前枚举类型中常量的值。
语法
以下为语法 −
public virtual Array GetEnumValues ();
示例
现在我们来看看一个实现 Type.GetEnumValues() 方法的示例 −
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("
Listing constants .."); for (int i = 0; i < str.Length; i++) Console.Write("{0} ", str[i]); } catch (ArgumentException e){ Console.WriteLine("Not an enum!"); Console.Write("{0}", e.GetType(), e.Message); } } }
输出
这将生成以下输出 −
Not an enum! System.ArgumentException
示例
现在我们来看看另一个实现 Type.GetEnumValues() 方法的示例 −
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("
Listing constants .."); for (int i = 0; i < str.Length; i++) Console.Write("{0} ", str[i]); } catch (ArgumentException e){ Console.WriteLine("Not an enum!"); Console.Write("{0}", e.GetType(), e.Message); } } }
输出
这将生成以下输出 −
GetEnumName() to return the constant name = System.String[] Enum Underlying type = System.Int32Values = Demo+Vehicle[] Listing constants .. Car Bus Bike Airplane
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