C#遍历类的属性 PropertyInfo.Attributes

PropertyInfo.Attributes 属性

此属性表示与成员关联的特性。 所有成员都具有相对于特定成员类型定义的特性集。 属性特性使用户能够知道此属性是否是默认属性、SpecialName 属性等等。

若要获取 Attributes 属性,请先获取类类型。 从 Type 获取 PropertyInfo PropertyInfo 获取特性。

官方示例:获取类的特性

 1 using System;
 2 using System.Reflection;
 3 
 4 public class Myproperty
 5 {
 6     private string caption = "Default caption";
 7     public string Caption
 8     {
 9         get{return caption;}
10         set {if(caption!=value) {caption = value;}
11         }
12     }
13 }
14 
15 class Mypropertyinfo
16 {
17     public static int Main(string[] args)
18     {
19         Console.WriteLine("\nReflection.PropertyInfo");
20 
21         // Define a property.
22         Myproperty Myproperty = new Myproperty();
23         Console.Write("\nMyproperty.Caption = " + Myproperty.Caption);
24 
25         // Get the type and PropertyInfo.
26         Type MyType = Type.GetType("Myproperty");
27         PropertyInfo Mypropertyinfo = MyType.GetProperty("Caption");
28 
29         // Get and display the attributes property.
30         PropertyAttributes Myattributes = Mypropertyinfo.Attributes;
31 
32         Console.Write("\nPropertyAttributes - " + Myattributes.ToString());
33 
34         return 0;
35     }
36 }

官方参考:http://msdn.microsoft.com/zh-cn/library/system.reflection.propertyinfo.attributes

一个例子: 注意:貌似对字段无效

先建一个类User

 1 namespace ClassLibrary1
 2 {
 3     public class User    
 4     {       
 5         private int userid = 1;
 6         public int Userid
 7         { 
 8             get { return userid; }
 9             set { userid = value; }
10         }  
11         private string userName = "jghg";       
12         public string UserName{
13             get { return userName; } 
14             set { userName = value; }
15         }
16         private string address = "ghjghj";
17         public string Address{ 
18             get { return address; } 
19             set { address = value; }
20         }        
21         private string email = "jhgjhg";
22         public string Email{
23             get { return email; }
24             set { email = value; }
25         }
26         private string phone = "ghjgjg";
27         public string Phone
28         { 
29             get { return phone; }
30             set { phone = value; }
31         }
32     }
33 }

接着在主程序中获取类的属性,看代码

 1 namespace ConsoleApplication2 { 
 2     class Program { 
 3         static void Main(string[] args) 
 4         { 
 5             Type type = typeof(ClassLibrary1.User); 
 6             object obj = Activator.CreateInstance(type); 
 7             PropertyInfo[] props = type.GetProperties(BindingFlags.Public | BindingFlags.Instance); 
 8             foreach (PropertyInfo p in props) { 
 9                 Console.WriteLine(p.Name); 
10             } 
11             Console.ReadLine(); 
12         }
13     } 
14 }

需要引入命名空间:

using System.Reflection;

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