Npgsql.NpgsqlCommand.AppendParameterPlaceHolders C# (CSharp) Метод

        private void AppendParameterPlaceHolders(Stream dest)
        {
            bool first = true;

            for (int i = 0; i < parameters.Count; i++)
            {
                NpgsqlParameter parameter = parameters[i];

                if (
                    (parameter.Direction == ParameterDirection.Input) ||
                    (parameter.Direction == ParameterDirection.InputOutput)
                )
                {
                    if (first)
                    {
                        first = false;
                    }
                    else
                    {
                        dest.WriteString(", ");
                    }

                    AppendParameterPlaceHolder(dest, parameter, i + 1);
                }
            }
        }