C#将List<T>转化为DataTable

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

namespace ConsoleApplication1
{
    static class ConvertDatatable
    {
        /// <summary>
        /// 扩展方法：将List<T>转化为DataTable
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="list"></param>
        /// <returns></returns>
        public static DataTable ToDataTable<T>(this List<T> list)
        {
            DataTable datatable = new DataTable();
            PropertyInfo[] propInfo = typeof(T).GetProperties(BindingFlags.Public|BindingFlags.Instance);
            foreach (var item in propInfo)
            {
                datatable.Columns.Add(item.Name);
            }
            foreach (T item in list)
            {
                var values=new object[propInfo.Length];
                for (int i = 0; i < propInfo.Length; i++)
                {
                    values[i] = propInfo[i].GetValue(item, null);
                }
                datatable.Rows.Add(values);
            }
            return datatable;
        }
    }

    class Student
    {
        public int? id { get; set; }
        public string name { get; set; }
        public int? age { get; set; }
        public string address { get; set; }
    }
}

调用：

    class Program
    {
        static void Main(string[] args)
        {
            List<Student> listStu = new List<Student>()
            {
                new Student(){id=1,name="张三",age=2,address="东十路1号"},
                new Student(){id=2,name="李四",age=8}
            };

            DataTable dt = listStu.ToDataTable<Student>();

            foreach (DataRow item in dt.Rows)
            {
                Console.Write(item["id"].ToString());
                Console.Write(item["name"].ToString());
                Console.Write(item["age"].ToString());
                Console.Write(item["address"].ToString());
                Console.WriteLine("
");
            }
            Console.Read();
        }
    }