asp.net 中c# 遍曆enum類型的例子

對於enum類型
：
使用foreach遍曆enum類型的元素並填充combox

代碼如下	複製代碼
foreach ( HatchStyle hs1 in Enum.GetValues(typeof(HatchStyle))) {     comboBox1.Items.Add(hs1.ToString()); }

例子

代碼如下

複製代碼

public enum BeepType { SimpleBeep = -1, IconAsterisk = 0x00000040, IconExclamation = 0x00000030, IconHand = 0x00000010, IconQuestion = 0x00000020, Ok = 0x00000000,         } string[] x = (string[])Enum.GetNames(typeof(Win32Api.BeepType)); int[] y = (int[])Enum.GetValues(typeof(Win32Api.BeepType)); for (int i = 0; i < 100; i++) {     MessageBox.Show(i.ToString());     Win32Api.MessageBeep((Win32Api.BeepType)i); }

枚舉可用來儲存字串與數位值對，相當於一個對照表
常用方法：GetName(),GetValue(),Parse()

代碼如下

複製代碼

using System;    public class EnumTest {      enum Days { Saturday, Sunday, Monday, Tuesday, Wednesday, Thursday, Friday };      enum BoilingPoints { Celcius = 100, Fahrenheit = 212 };      [FlagsAttribute]      enum Colors { Red = 1, Green = 2, Blue = 4, Yellow = 8 };        public static void Main() {            Type weekdays = typeof(Days);          Type boiling = typeof(BoilingPoints);            Console.WriteLine("The days of the week, and their corresponding values in the Days Enum are:");            foreach ( string s in Enum.GetNames(weekdays) )              Console.WriteLine( "{0,-11}= {1}", s, Enum.Format( weekdays, Enum.Parse(weekdays, s), "d"));            Console.WriteLine();          Console.WriteLine("Enums can also be created which have values that represent some meaningful amount.");          Console.WriteLine("The BoilingPoints Enum defines the following items, and corresponding values:");            foreach ( string s in Enum.GetNames(boiling) )              Console.WriteLine( "{0,-11}= {1}", s, Enum.Format(boiling, Enum.Parse(boiling, s), "d"));            Colors myColors = Colors.Red | Colors.Blue | Colors.Yellow;          Console.WriteLine();          Console.WriteLine("myColors holds a combination of colors. Namely: {0}", myColors);      }  }