1 public class A 2 { 3      public string Name {get;set;} 4      public int Age {get;set;}               5 } 6  7 public class B 8 { 9      public string Name {get;set;}10      public int Age {get;set;}              11 }12 13 static void main(string[] args)14 {15      A a= new A();16      a.Name = "aa";17      a.Age = 1;18      B b = new B();19      b.Name = a.Name;20      b.Age = a.Age;21 }22            23     

 1 public static class Common 2     { 3         public static void CopyTo<T>(this object source, T target) 4             where   T : class,new() 5         { 6             if (source == null) 7                 return; 8  9             if (target == null)10             {11                 target = new T();12             }13 14             foreach (var PRoperty in target.GetType().GetProperties())15             {16                 var propertyValue = source.GetType().GetProperty(property.Name).GetValue(source, null);17                 if (propertyValue != null)18                 {19                     if (propertyValue.GetType().IsClass)20                     { 21                         22                     }23                     target.GetType().InvokeMember(property.Name, BindingFlags.SetProperty, null, target, new object[] { propertyValue });24                 }25 26             }27 28             foreach (var field in target.GetType().GetFields())29             {30                 var fieldValue = source.GetType().GetField(field.Name).GetValue(source);31                 if (fieldValue != null)32                 {33                     target.GetType().InvokeMember(field.Name, BindingFlags.SetField, null, target, new object[] { fieldValue });34                 }35             }36         }37     }

static void main(string[] args){    A a = new A();    a.Name = "aa";    a.Age = 1;    B b = new B();    a.CopyTo(b);}