void SendResultInfoAsJson(AddPKkeysResponse res)
    {
        string strJson = JsonConvert.SerializeObject(res);

        Response.ContentType = "application/json; charset=utf-8";
        Response.Write(strJson);
        Response.End();
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        AddPKkeysResponse res = new AddPKkeysResponse();
        AddPKkeysRequest  req;

        res.error = String.Empty;

        // Need passed in store id and number of requested results.
        // 1. Deserialize the incoming Json.
        try
        {
            req = GetRequestInfo();
        }
        catch (Exception ex)
        {
            res.error = ex.Message.ToString();

            // Return the results as Json.
            SendResultInfoAsJson(res);

            return;
        }

        SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);

        try
        {
            connection.Open();

            string sql = String.Format("insert into PKkeys (name,version) VALUES ('{0}','{1}')",
                                       req.name, req.version);

            SqlCommand command = new SqlCommand(sql, connection);
            command.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            res.error = ex.Message.ToString();
        }
        finally
        {
            if (connection.State == ConnectionState.Open)
            {
                connection.Close();
            }
        }

        // Return the results as Json.
        SendResultInfoAsJson(res);
    }