Serialize Datatable using JavaScriptSerializer

        public static string JavaScriptSerialize(DataTable dt)

        {

            JavaScriptSerializer ser = new JavaScriptSerializer();

            List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>();

            Dictionary<string, object> row;

            foreach (DataRow dr in dt.Rows)

            {

                row = new Dictionary<string, object>();

                foreach (DataColumn col in dt.Columns)

                {

                    row.Add(col.ColumnName, dr[col]);

                }

                rows.Add(row);

            }

            return ser.Serialize(rows);

        }