C#对象深拷贝方法 - 通用版

1. public object Copy(this object obj)  
2.         {  
3.             Object targetDeepCopyObj;  
4.             Type targetType = obj.GetType();  
5.             //值类型  
6.             if (targetType.IsValueType == true)  
7.             {  
8.                 targetDeepCopyObj = obj;  
9.             }  
10.             //引用类型   
11.             else  
12.             {  
13.                 targetDeepCopyObj = System.Activator.CreateInstance(targetType);   //创建引用对象   
14.                 System.Reflection.MemberInfo[] memberCollection = obj.GetType().GetMembers();  
15.   
16.                 foreach (System.Reflection.MemberInfo member in memberCollection)  
17.                 {  
18.                     if (member.MemberType == System.Reflection.MemberTypes.Field)  
19.                     {  
20.                         System.Reflection.FieldInfo field = (System.Reflection.FieldInfo)member;  
21.                         Object fieldValue = field.GetValue(obj);  
22.                         if (fieldValue is ICloneable)  
23.                         {  
24.                             field.SetValue(targetDeepCopyObj, (fieldValue as ICloneable).Clone());  
25.                         }  
26.                         else  
27.                         {  
28.                             field.SetValue(targetDeepCopyObj, Copy(fieldValue));  
29.                         }  
30.   
31.                     }  
32.                     else if (member.MemberType == System.Reflection.MemberTypes.Property)  
33.                     {  
34.                         System.Reflection.PropertyInfo myProperty = (System.Reflection.PropertyInfo)member;  
35.                         MethodInfo info = myProperty.GetSetMethod(false);  
36.                         if (info != null)  
37.                         {  
38.                             object propertyValue = myProperty.GetValue(obj, null);  
39.                             if (propertyValue is ICloneable)  
40.                             {  
41.                                 myProperty.SetValue(targetDeepCopyObj, (propertyValue as ICloneable).Clone(), null);  
42.                             }  
43.                             else  
44.                             {  
45.                                 myProperty.SetValue(targetDeepCopyObj, Copy(propertyValue), null);  
46.                             }  
47.                         }  
48.   
49.                     }  
50.                 }  
51.             }  
52.             return targetDeepCopyObj;  
53.         }