将DataTable转换成List泛型集合助手类

将DataTable转换成List<T>泛型集合助手类，这个类我放在了Entity实体类层中：

[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>
    /// 将DataTable转换成泛型集合IList<>助手类
    /// </summary>
    public class ConvertHelper
    {
        /// <summary>
        /// 单表查询结果转换成泛型集合
        /// </summary>
        /// <typeparam name="T">泛型集合类型</typeparam>
        /// <param name="dt">查询结果DataTable</param>
        /// <returns>以实体类为元素的泛型集合</returns>
        public static IList<T> convertToList<T>(DataTable dt) where T : new()
        {
            // 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;  
        }
    }
}