将DataTable转换成List<T>实现思路及示例代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Collections;
using System.Reflection;
namespace DatableToList
{
    class ConvertHelper<T> where T : new()
    {
        /// <summary>
        /// 利用反射和泛型
        /// </summary>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static List<T> ConvertToList(DataTable dt)
        {

            // 定义集合
            List<T> ts = new List<T>();

            // 获得此模型的类型
            Type type = typeof(T);
            //定义一个临时变量
            string tempName = string.Empty;
            //遍历DataTable中所有的数据行
            foreach (DataRow dr in dt.Rows)
            {
                T t = new T();
                // 获得此模型的公共属性
                PropertyInfo[] propertys = t.GetType().GetProperties();
                //遍历该对象的所有属性
                foreach (PropertyInfo pi in propertys)
                {
                    tempName = pi.Name;//将属性名称赋值给临时变量
                    //检查DataTable是否包含此列（列名==对象的属性名） 
                    if (dt.Columns.Contains(tempName))
                    {
                        // 判断此属性是否有Setter
                        if (!pi.CanWrite) continue;//该属性不可写，直接跳出
                        //取值
                        object value = dr[tempName];
                        //如果非空，则赋给对象的属性
                        if (value != DBNull.Value)
                            pi.SetValue(t, value, null);
                    }
                }
                //对象添加到泛型集合中
                ts.Add(t);
            }

            return ts;

        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Collections;
using System.Reflection;

namespace DatableToList
{
    class Program
    {
        static void Main(string[] args)
        {
            DataTable dt = CreateDt();//获得一个DataTable
          //根据对象类型和DataTable，获取泛型集合
          List<Person>  list = ConvertHelper<Person>.ConvertToList(dt);
          //遍历该泛型集合，打印输出。
        foreach (var item in list)
        {
            Console.WriteLine(item.ToString());
        }

          Console.ReadKey();
        }
        /// <summary>
        /// 创建一个DataTable，并添加数据，提供测试。
        /// </summary>
        /// <returns></returns>
        public static DataTable CreateDt()
        {

            DataTable dt = new DataTable();
            dt.Columns.Add(new DataColumn("id", typeof(System.Int32)));
            dt.Columns.Add(new DataColumn("name", typeof(System.String)));
            dt.Columns.Add(new DataColumn("address", typeof(System.String)));

            dt.Rows.Add(1,"Dylan","SZ");
            dt.Rows.Add(2, "Jay", "TW");
            dt.Rows.Add(3, "CQ", "HK");
            return dt;
        }

    }  

}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace DatableToList
{
    class Person
    {
        private int id;

        public int Id
        {
            get { return id; }
            set { id = value; }
        }
        private string name;

        public string Name
        {
            get { return name; }
            set { name = value; }
        }
        private string address;

        public string Address
        {
            get { return address; }
            set { address = value; }
        }

        public override string ToString()
        {
            return "Person: " + id + " ," + name+","+address;
        }
    }
}