Attribute

作者：追风剑情 发布于：2014-7-17 22:09 分类：C# 

  1. using System;
  2. using System.Reflection;
  3.  
  4. namespace AttributeTest
  5. {
  6.     class Program
  7.     {
  8.         static void Main(string[] args)
  9.         {
  10.             AnimalTypeTestClass testClass = new AnimalTypeTestClass();
  11.             Type type = testClass.GetType();
  12.             // 遍历类中的所有字段
  13.             foreach (FieldInfo fInfo in type.GetFields())
  14.             {
  15.                 // 遍历字段上绑定的所有特性
  16.                 foreach (Attribute attr in Attribute.GetCustomAttributes(fInfo))
  17.                 {
  18.                     if (attr.GetType() == typeof(AnimalTypeAttribute))
  19.                         Console.WriteLine(
  20.                             "Field Name={0} Description={1} attribute.",
  21.                             fInfo.Name, ((AnimalTypeAttribute)attr).Description);
  22.                 }
  23.  
  24.             }
  25.  
  26.             Console.ReadKey();
  27.         }
  28.     }
  29.  
  30.     public class AnimalTypeAttribute : Attribute
  31.     {
  32.         protected string _description;
  33.  
  34.         public AnimalTypeAttribute(string description)
  35.         {
  36.             _description = description;
  37.         }
  38.  
  39.         public string Description
  40.         {
  41.             get
  42.             {
  43.                 return _description;
  44.             }
  45.         }
  46.     }
  47.  
  48.     class AnimalTypeTestClass
  49.     {
  50.         [AnimalType("名字")]
  51.         public string Name;
  52.  
  53.         [AnimalType("年龄")]
  54.         public string Year;
  55.     }
  56. }

运行效果

Attribute运行效果.png

标签: Attribute

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