编辑代码

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using System.IO;

public class Person {
    public Person(int id,string name,string address)
    {
        this.Id = id;
        this.Name = name;
        this.Address = address;
    }
    public int Id { get; set; }
    public string Name { get; set; }
    public string Address { get; set; }
}
public class User {
    public int Id { get; set; }
    public string Name { get; set; }
    public string Group { get; set; }
}

public class DemoClass{
    public static User ConvertObject(User user,Person person)
        {
            PropertyInfo[] userPro = user.GetType().GetProperties();
            PropertyInfo[] personPro = person.GetType().GetProperties();
            if (userPro.Length>0&&personPro.Length>0)
            {
                for (int i = 0; i < userPro.Length; i++)
                {
                    for (int j = 0; j < personPro.Length; j++)
                    {　　//判断User的属性是不是的Person中
                        if (userPro[i].Name == personPro[j].Name && userPro[i].PropertyType == personPro[j].PropertyType)
                        {
                            Object value=personPro[j].GetValue(person, null);
                            　　//将Person中属性的值赋值给User<br>　　　　　　　　　　　　　　
                            userPro[i].SetValue(user,value , null);
                        }
                    }
                }
            }
            return user;
    }
    //T2 >> T1,return T1
    public static T1 ConvertObject2<T1,T2>(T1 user,T2 person)
        {
            PropertyInfo[] userPro = user.GetType().GetProperties();
            PropertyInfo[] personPro = person.GetType().GetProperties();
            if (userPro.Length>0&&personPro.Length>0)
            {
                for (int i = 0; i < userPro.Length; i++)
                {
                    for (int j = 0; j < personPro.Length; j++)
                    {　　//判断User的属性是不是的Person中
                        if (userPro[i].Name == personPro[j].Name && userPro[i].PropertyType == personPro[j].PropertyType)
                        {
                            Object value=personPro[j].GetValue(person, null);
                            　　//将Person中属性的值赋值给User<br>　　　　　　　　　　　　　　
                            userPro[i].SetValue(user,value , null);
                        }
                    }
                }
            }
            return user;
    }

    //Dictionary >> T,return T
    public static T ConvertDic<T>(Dictionary<string, object> dic)
      {
          T model = Activator.CreateInstance<T>();
          PropertyInfo[] modelPro = model.GetType().GetProperties();
          if (modelPro.Length > 0 && dic.Count() > 0)
          {
              for (int i = 0; i < modelPro.Length; i++)
              {
                  if (dic.ContainsKey(modelPro[i].Name))
                  {
                      modelPro[i].SetValue(model, dic[modelPro[i].Name], null);
                  }
              }
          }
          return model;
      }

    //   public static List<T> ConvertData<T>(SqlDataReader  sdr)
    //  {
    //      List<T> list = new List<T>();
    //      Type type = typeof(T);
    //      PropertyInfo[] properties = type.GetProperties();
    //      while (sdr.Read())
    //      {
    //          T model = Activator.CreateInstance<T>();
    //          for (int i = 0; i < properties.Length; i++)
    //          {
    //              for (int j = 0; j < sdr.FieldCount; j++)
    //              {
    //                  //判断属性的名称和字段的名称是否相同
    //                  if (properties[i].Name == sdr.GetName(j))
    //                  {
    //                      Object value =sdr[j];
    //                      //将字段的值赋值给User中的属性
    //                      properties[i].SetValue(model, value, null);
    //                  }
    //              }
    //          }
    //          list.Add(model);
    //      }
    //      return list;
    //  }


    static void Main(string[] args)
        {
            Person person = new Person(1,"FlyElephant","北京");
            User user = new User();
            user.Id = 20;
            user = ConvertObject(user, person);
            Console.WriteLine("Id:" + user.Id + "Name:" + user.Name + "角色:" + user.Group);

            person = new Person(2,"ffh","合肥");
            user = ConvertObject2<User,Person>(user, person);
            Console.WriteLine("Id:" + user.Id + "Name:" + user.Name + "角色:" + user.Group);

            Dictionary<string, object> dic = new Dictionary<string, object>();
            dic.Add("Id",10086);
            dic.Add("Name", "ffh");
            dic.Add("Group", "程序员");            
            user = ConvertDic<User>(dic);
            Console.WriteLine("Id:" + user.Id + "Name:" + user.Name + "角色:" + user.Group);

            System.Console.Read();
        }
}