DataTable to json

gistfile1.cs

        //add reference System.Data
        //add reference System.Web.extensions
        //add reference System.Web.DataTableExtensions
        public static string ConvertToJson(DataTable dt, int page = 0, int count = 100)
        {
            var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
            var rows = new List<Dictionary<string, object>>();
            foreach (DataRow dr in dt.AsEnumerable().Skip(page * count).Take(count).ToList())
            {
                rows.Add(dt.Columns.Cast<DataColumn>().ToDictionary(col => col.ColumnName, col => dr[col]));
            }
            return serializer.Serialize(rows);
        }