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

namespace IStation.Extensions
{
    /// <summary>
    /// IEnumerable<T> 拓展
    /// </summary>
    public static class EnumerableExtension
    {
        /// <summary>
        /// 转换为DataTable
        /// </summary>
        public static DataTable ToDataTable<T>(this IEnumerable<T> list) where T : new()
        {
            DataTable dt = new DataTable();
            PropertyInfo[] properties = typeof(T).GetProperties();
            dt.Columns.AddRange(properties.Select(p => new DataColumn(p.Name, p.PropertyType)).ToArray());
            if (list.Count() > 0)
            {
                for (int i = 0; i < list.Count(); i++)
                {
                    ArrayList tempList = new ArrayList();
                    foreach (PropertyInfo pro in properties)
                    {
                        object obj = pro.GetValue(list.ElementAt(i), null);
                        tempList.Add(obj);
                    }
                    object[] array = tempList.ToArray();
                    dt.LoadDataRow(array, true);
                }
            }
            return dt;
        }








    }
}