用替代组反序列化消息时出现问题

<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>
<Radars xmlns=\"http://mycompany.com/2008/c2s2\">
  <Radar>
    <Identification>
      <Identifier>140:141</Identifier>
      <IP>10.216.1.79</IP>
      <Label>Radar 1</Label>
      <Model>Radar123</Model>
      <Category>Civil</Category>
    </Identification>
    <Database>
      <Radar456General>
        <Identifier>203</Identifier>
        <Version>8</Version>
        <RadarStartStop>false</RadarStartStop>
        <AntennaRotationSpeed>false</AntennaRotationSpeed>
        <RadarAntennaRotation>false</RadarAntennaRotation>
        <AntennaStaringPosition>0</AntennaStaringPosition>
      </Radar456General>
    </Database>
  </Radar>
</Radars>

    public static T Deserialize<T>(string message)
    {
        object obj = null;

        try
        {
            XmlSerializer xs = new XmlSerializer(typeof(T));
            StringReader reader = new StringReader(message);
            XmlTextReader xmlReader = new XmlTextReader(reader);

            obj = xs.Deserialize(xmlReader);

            xmlReader.Close();
            reader.Close();
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex);
            throw ex;
        }

        return (T)obj;
    }

Radars radars = Serializer.Deserialize<Radars>(message);

<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<xs:schema xmlns:xs=\"http://www.w3.org/2001/XMLSchema\" 
           xmlns=\"http://mycompany.com/2008/c2s2\" 
           targetNamespace=\"http://mycompany.com/2008/c2s2\" 
           elementFormDefault=\"qualified\" version=\"1.0\">

  <xs:include schemaLocation=\"asterix_cat034.xsd\"/>
  <xs:include schemaLocation=\"asterix_cat253.xsd\"/>

  <xs:element name=\"Radars\">
    <xs:annotation>
      <xs:documentation>List of radar information</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element name=\"Radar\" type=\"RadarType\" minOccurs=\"0\" maxOccurs=\"unbounded\"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:complexType name=\"RadarType\">
    <xs:sequence>
      <xs:element name=\"Identification\" type=\"RadarIdentificationType\"/>
      <xs:element name=\"Database\" type=\"DatabaseType\"/>
    </xs:sequence>
  </xs:complexType>

  <xs:element name=\"Radar\" type=\"RadarType\"/>

  <xs:complexType name=\"RadarIdentificationType\">
    <xs:annotation>
      <xs:documentation>
        This type represents the radar identification.
      </xs:documentation>
    </xs:annotation>
    <xs:sequence>
      <xs:element name=\"Identifier\" type=\"xs:string\"/>
      <xs:element name=\"IP\" type=\"xs:string\"/>
      <xs:element name=\"Label\" type=\"xs:string\"/>
      <xs:element name=\"Model\" type=\"RadarModelType\"/>
      <xs:element name=\"Category\" type=\"RadarCategoryType\"/>
    </xs:sequence>
  </xs:complexType>

  <xs:simpleType name=\"RadarModelType\">
    <xs:restriction base=\"xs:string\">
      <xs:enumeration value=\"Radar123\"/>
      <xs:enumeration value=\"Radar456\"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name=\"RadarCategoryType\">
    <xs:restriction base=\"xs:string\">
      <xs:enumeration value=\"Civil\"/>
      <xs:enumeration value=\"Military\"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:complexType name=\"DatabaseSectionType\">
    <xs:sequence>
      <xs:element name=\"Identifier\" type=\"xs:unsignedByte\"/>
      <xs:element name=\"Version\" type=\"I253_100_DB_VER\"/>
    </xs:sequence>
  </xs:complexType>

  <xs:element name=\"DatabaseSectionType\" type=\"DatabaseSectionType\">
    <xs:annotation>
      <xs:documentation>root of the substitution group</xs:documentation>
    </xs:annotation>
  </xs:element>

  <xs:complexType name=\"DatabaseType\">
    <xs:sequence>
      <xs:element ref=\"DatabaseSectionType\" minOccurs=\"1\" maxOccurs=\"unbounded\"/>
    </xs:sequence>
  </xs:complexType>

  <xs:element name=\"Radar456General\" substitutionGroup=\"DatabaseSectionType\">
    <xs:annotation>
      <xs:documentation>Radar456General database section</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base=\"DatabaseSectionType\">
          <xs:sequence>
            <xs:element name=\"RadarStartStop\" type=\"I253_100_Start_Stop\"/>
            <xs:element name=\"AntennaRotationSpeed\" type=\"I253_100_ARS\"/>
            <xs:element name=\"RadarAntennaRotation\" type=\"I253_100_ROT\"/>
            <xs:element name=\"AntennaStaringPosition\" type=\"I253_100_ASP\"/>
          </xs:sequence>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>

  <xs:element name=\"Radar123General\" substitutionGroup=\"DatabaseSectionType\">
    <xs:annotation>
      <xs:documentation>Radar123General database section</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base=\"DatabaseSectionType\">
          <xs:sequence>
            <xs:element name=\"Shutdown\" type=\"I253_100_Shutdown\"/>
            <xs:element name=\"RotationTransmission\" type=\"I253_100_ROT_TX\"/>
            <xs:element name=\"SurfaceInstrumentedRange\" type=\"I253_100_SIR\"/>
            <xs:element name=\"TransmitterTuneMode\" type=\"I253_100_TT_mode\"/>
          </xs:sequence>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
</xs:schema>