/// 
        /// 将List集合 转换成 DataTable        /// 
        /// sellerSearchDealList是我自己定义的一个类        public static DataTable ListToTable(List
     
       entitys)        {            DataTable dtresult = new DataTable();            if (entitys == null || entitys.Count < 1)            {                throw new Exception("空");            }            else            {                PropertyInfo[] propertys = entitys[0].GetType().GetProperties();                foreach (PropertyInfo pi in propertys)                {                    dtresult.Columns.Add(pi.Name, pi.PropertyType);                }                for (int i = 0; i < entitys.Count; i++)                {                    ArrayList tenpList = new ArrayList();                    foreach (PropertyInfo pi in propertys)                    {                        object obj = pi.GetValue(entitys[i], null);                        tenpList.Add(obj);                    }                    object[] array = tenpList.ToArray();                    dtresult.LoadDataRow(array, true);                }            }            return dtresult;        }