System.Runtime.Serialization.XmlWriterDelegator.XmlWriterDelegator.WriteExtensionData C# (CSharp) Метод

        internal void WriteExtensionData(IDataNode dataNode)
        {
            bool handled = true;
            Type valueType = dataNode.DataType;
            switch (Type.GetTypeCode(valueType))
            {
                case TypeCode.Boolean:
                    WriteBoolean(((DataNode<bool>)dataNode).GetValue());
                    break;
                case TypeCode.Char:
                    WriteChar(((DataNode<char>)dataNode).GetValue());
                    break;
                case TypeCode.Byte:
                    WriteUnsignedByte(((DataNode<byte>)dataNode).GetValue());
                    break;
                case TypeCode.Int16:
                    WriteShort(((DataNode<short>)dataNode).GetValue());
                    break;
                case TypeCode.Int32:
                    WriteInt(((DataNode<int>)dataNode).GetValue());
                    break;
                case TypeCode.Int64:
                    WriteLong(((DataNode<long>)dataNode).GetValue());
                    break;
                case TypeCode.Single:
                    WriteFloat(((DataNode<float>)dataNode).GetValue());
                    break;
                case TypeCode.Double:
                    WriteDouble(((DataNode<double>)dataNode).GetValue());
                    break;
                case TypeCode.Decimal:
                    WriteDecimal(((DataNode<decimal>)dataNode).GetValue());
                    break;
                case TypeCode.DateTime:
                    WriteDateTime(((DataNode<DateTime>)dataNode).GetValue());
                    break;
                case TypeCode.String:
                    WriteString(((DataNode<string>)dataNode).GetValue());
                    break;
                case TypeCode.SByte:
                    WriteSignedByte(((DataNode<sbyte>)dataNode).GetValue());
                    break;
                case TypeCode.UInt16:
                    WriteUnsignedShort(((DataNode<ushort>)dataNode).GetValue());
                    break;
                case TypeCode.UInt32:
                    WriteUnsignedInt(((DataNode<uint>)dataNode).GetValue());
                    break;
                case TypeCode.UInt64:
                    WriteUnsignedLong(((DataNode<ulong>)dataNode).GetValue());
                    break;
                case TypeCode.Empty:
                case TypeCode.DBNull:
                case TypeCode.Object:
                default:
                    if (valueType == Globals.TypeOfByteArray)
                        WriteBase64(((DataNode<byte[]>)dataNode).GetValue());
                    else if (valueType == Globals.TypeOfObject)
                    {
                        object obj = dataNode.Value;
                        if (obj != null)
                            WriteAnyType(obj);
                    }
                    else if (valueType == Globals.TypeOfTimeSpan)
                        WriteTimeSpan(((DataNode<TimeSpan>)dataNode).GetValue());
                    else if (valueType == Globals.TypeOfGuid)
                        WriteGuid(((DataNode<Guid>)dataNode).GetValue());
                    else if (valueType == Globals.TypeOfUri)
                        WriteUri(((DataNode<Uri>)dataNode).GetValue());
                    else if (valueType == Globals.TypeOfXmlQualifiedName)
                        WriteQName(((DataNode<XmlQualifiedName>)dataNode).GetValue());
                    else
                        handled = false;
                    break;
            }

            if (!handled)
            {
                throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateInvalidPrimitiveTypeException(valueType));
            }
        }