/// <summary>        /// 将List转换成DataTable        /// </summary>        /// <typeparam name="T"></typeparam>        /// <param name="data"></param>        /// <returns></returns>        public static DataTable ToDataTable<T>(this IList<T> data)            {            PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(typeof(T));            DataTable dt = new DataTable();            for (int i = 0; i < properties.Count; i++)                {                PropertyDescriptor property = properties[i];                dt.Columns.Add(property.Name, property.PropertyType);                }            object[] values = new object[properties.Count];            foreach (T item in data)                {                for (int i = 0; i < values.Length; i++)                    {                    values[i] = properties[i].GetValue(item);                    }                dt.Rows.Add(values);                }            return dt;            }