-------- HTML CODE --------

        <form action="/include/api.ashx" method="post">
            <div class="large-6 columns">
                <input type="text" value="" id="PLUID"/>
            </div>
            <div class="large-6 columns left">
                <input type="text" value="" id="Enabled"/>
                <input type="text" value="" id="WeighingMode" />
                <input type="text" value="" id="TemplateID" />
            </div>
            <div class="large-6 columns">
                <textarea id="PLUName"></textarea>
            </div>
            <input type="submit" name="name" value="Save" />
        </form>

-------- C# --------
namespace Project.include
{
    public class API : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
       {
            object data = LoadAPI(context);
            string jsonData = JsonConvert.SerializeObject(data);
            context.Response.Write(jsonData);
        }

        public List<Dictionary<string, object>> LoadAPI(HttpContext context)
        {
            List<Dictionary<string, object>> output = new List<Dictionary<string, object>> { };

            SqlConnection sqlConnection1 = new SqlConnection(globalLibrary.NewConnectionString);
            SqlCommand cmd = new SqlCommand();
            SqlDataReader reader;
            string tablename = context.Request.QueryString["tablename"];
            string maybeID = context.Request.QueryString["ID"];
            string TableField = HttpContext.Current.Server.UrlDecode(HttpContext.Current.Request.QueryString[tablename + "Name"]);
            if (tablename != null)
            {
                cmd.CommandText = "SELECT TOP 50 * FROM " + tablename;
            }
            if (maybeID != null && Regex.IsMatch(maybeID, @"^\d+$") == true)
            {
                cmd.CommandText += " WHERE " + tablename + "ID Like '%" + maybeID + "%'";
            }
            else if (TableField != null)
            {
                cmd.CommandText += " WHERE " + tablename + "Name LIKE '%" + TableField.Replace("'", "''") + "%'";
            }

            cmd.CommandType = CommandType.Text;
            cmd.Connection = sqlConnection1;

            sqlConnection1.Open();

            reader = cmd.ExecuteReader();

            while (reader.Read())
            {
                object[] rowValues = new object[reader.FieldCount];
                var headings = Enumerable.Range(0, reader.FieldCount).Select(reader.GetName).ToArray();
                Dictionary<string, object> rowDict = new Dictionary<string, object> { };
                reader.GetValues(rowValues);
                //list.Add(headings);
                //list.Add(rowValues);

                for (int i = 0; i < Math.Max(headings.Length, rowValues.Length); i++)
                {
                    var key = headings[i];
                    var value = rowValues[i];
                    rowDict.Add(key, value);
                }
                output.Add(rowDict);
                //context.Response.Write(test);
            }
            sqlConnection1.Close();
            return output;
        }
        public bool IsReusable
        {
            get
            {
                return false;
            }
        }

    }
}