將DataTable轉換成List<T>泛型集合助手類，這個類我放在了Entity實體類層中：

[csharp]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Reflection;

namespace Entity
{
    /// <summary>
    /// 將DataTable轉換成泛型集合IList<>助手類
    /// </summary>
    public class ConvertHelper
    {
        /// <summary>
        /// 單表查詢結果轉換成泛型集合
        /// </summary>
        /// <typeparam name="T">泛型集合型別</typeparam>
        /// <param name="dt">查詢結果DataTable</param>
        /// <returns>以實體類為元素的泛型集合</returns>
        public static IList<T> convertToList<T>(DataTable dt) where T : new()
        {
            // 定義集合
            List<T> ts = new List<T>();

            // 獲得此模型的型別
            Type type = typeof(T);
            //定義一個臨時變數
             string tempName = string.Empty;
            //遍歷DataTable中所有的資料行 
            foreach (DataRow dr in dt.Rows)
            {
                T t = new T();
                // 獲得此模型的公共屬性
                PropertyInfo[] propertys = t.GetType().GetProperties();
                //遍歷該物件的所有屬性
                foreach (PropertyInfo pi in propertys)
                {
                    tempName = pi.Name;//將屬性名稱賦值給臨時變數  
                    //檢查DataTable是否包含此列（列名==物件的屬性名）    
                    if (dt.Columns.Contains(tempName))
                    {
                        // 判斷此屬性是否有Setter  
                        if (!pi.CanWrite) continue;//該屬性不可寫，直接跳出  
                        //取值  
                        object value = dr[tempName];
                        //如果非空，則賦給物件的屬性  
                        if (value != DBNull.Value)
                            pi.SetValue(t, value, null);
                    }
                }
                //物件新增到泛型集合中
                ts.Add(t);
            }

            return ts;  
        }
    }
}