C# 让枚举返回字符串

时间：2022-09-02 20:16:28

下面的手段是使用给枚举项打标签的方式,来返回字符串

分别定义一个属性类,一个枚举帮助类

 

 1 /// <summary>
 2     /// 自定义属性
 3     /// </summary>
 4     [AttributeUsage(AttributeTargets.Field, AllowMultiple = false)]
 5     public sealed class EnumDescriptionAttribute : Attribute
 6     {
 7         private string description;
 8         public string Description { get { return description; } }
 9 
10         public EnumDescriptionAttribute(string description)
11             : base()
12         {
13             this.description = description;
14         }
15     }
16 
17     /// <summary>
18     /// 获取枚举字符串
19     /// </summary>
20     public static class EnumHelper
21     {
22         public static string GetDescription(Enum value)
23         {
24             if (value == null)
25             {
26                 throw new ArgumentException("value");
27             }
28             string description = value.ToString();
29             var fieldInfo = value.GetType().GetField(description);
30             var attributes =
31                 (EnumDescriptionAttribute[])fieldInfo.GetCustomAttributes(typeof(EnumDescriptionAttribute), false);
32             if (attributes != null && attributes.Length > 0)
33             {
34                 description = attributes[0].Description;
35             }
36             return description;
37         }
38     }

 

 

 1 enum Week  
 2 {  
 3     [EnumDescription("星期一")]  
 4     Monday,  
 5     [EnumDescription("星期二")]  
 6     Tuesday  
 7 }  
 8   
 9 //下面打印结果为: 星期一  
10 Console.WriteLine(EnuHelper.GetDescription(Week.Monday))

 

转载：http://www.cnblogs.com/xjxz/p/4649016.html 

 

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