Npgsql.NpgsqlCommand.AppendParameterValue C# (CSharp) Method

        private void AppendParameterValue(Stream dest, NpgsqlParameter parameter)
        {
            byte[] serialised = parameter.TypeInfo.ConvertToBackend(parameter.Value, false, Connector.NativeToBackendTypeConverterOptions);

            // Add parentheses wrapping parameter value before the type cast to avoid problems with Int16.MinValue, Int32.MinValue and Int64.MinValue
            // See bug #1010543
            // Check if this parenthesis can be collapsed with the previous one about the array support. This way, we could use
            // only one pair of parentheses for the two purposes instead of two pairs.
            dest
                .WriteBytes((byte)ASCIIBytes.ParenLeft)
                .WriteBytes((byte)ASCIIBytes.ParenLeft)
                .WriteBytes(serialised)
                .WriteBytes((byte)ASCIIBytes.ParenRight);

            if (parameter.UseCast)
            {
                dest.WriteString("::{0}", parameter.TypeInfo.CastName);

                if (parameter.TypeInfo.UseSize && (parameter.Size > 0))
                {
                    dest.WriteString("({0})", parameter.Size);
                }
            }

            dest.WriteBytes((byte)ASCIIBytes.ParenRight);
        }