固定的数据源Table分页 vs DataRow[] 转换成Json格式

 DataTable searchTable = _createPageManager.SearchSql(searchSql, searchField); 
            DataRow[] drArr = searchTable.AsEnumerable().Skip((pageIndex - 1) * pageSize).Take(pageSize).ToArray();

/// <summary>
        /// DataRow[] 转换成Json格式
        /// </summary>
        /// <param name="drArr"></param>
        /// <returns></returns>
        public static string DataRowToJson(DataRow[] drArr)
        {
            StringBuilder jsonBuilder = new StringBuilder();
            jsonBuilder.Append("[");
            if (drArr.Length > 0)
            {
                foreach (DataRow dr in drArr)
                {
                    jsonBuilder.Append("{");
                    for (int drIndex = 0; drIndex < dr.ItemArray.Length; drIndex++)
                    {
                        jsonBuilder.AppendFormat("\"{0}\":\"{1}\",",
                            dr.Table.Columns[drIndex].ColumnName, dr[drIndex].ToString().Replace('"', '‘').Replace("'","‘").Trim());
                    }
                    jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
                    jsonBuilder.Append("},");
                }
                jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
            }
            jsonBuilder.Append("]");
            return jsonBuilder.ToString();
        }