C# can't deserialize XML containing xsi:type
Question
I am trying to deserialize the following XML
<?xml version="1.0" encoding="UTF-8"?>
<GovTalkMessage xmlns="http://www.govtalk.gov.uk/CM/envelope">
<EnvelopeVersion>2.0</EnvelopeVersion>
<Header>
<MessageDetails>
<Class>DRUG_DATA</Class>
<Qualifier>response</Qualifier>
<Function>submit</Function>
<CorrelationID>BD694DAAA26AA6068EAAAE5C7746CE54</CorrelationID>
<Transformation>XML</Transformation>
</MessageDetails>
<SenderDetails>
<IDAuthentication>
<SenderID />
<Authentication>
<Method />
<Role />
<Value />
</Authentication>
</IDAuthentication>
</SenderDetails>
</Header>
<GovTalkDetails>
<Keys>
<Key Type="SpokeName" />
</Keys>
</GovTalkDetails>
<Body>
<S:Envelope xmlns:S="http://www.w3.org/2003/05/soap-envelope">
<S:Body>
<ns2:getGenericDrugsResponse xmlns:ns2="http://webservice.sirkb/">
<return>
<DRUG xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns2:genericDrug">
<GENERIC_DRUG_ID>147</GENERIC_DRUG_ID>
<GENERIC_DRUG_NAME>Amoxicilline 125mg/5ml - 60ml</GENERIC_DRUG_NAME>
</DRUG>
<DRUG xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns2:genericDrug">
<GENERIC_DRUG_ID>149</GENERIC_DRUG_ID>
<GENERIC_DRUG_NAME>Amoxicilline 250mg/5ml - 60ml</GENERIC_DRUG_NAME>
</DRUG>
<DRUG xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns2:genericDrug">
<DOSAGE>10mg/5ml</DOSAGE>
<GENERIC_DRUG_ID>2312</GENERIC_DRUG_ID>
<GENERIC_DRUG_NAME>Vinorelbine (as vinorelbine tartrate)</GENERIC_DRUG_NAME>
<PHARMACEUTICAL_FORM>concentrate for solution for infusion</PHARMACEUTICAL_FORM>
</DRUG>
<DRUG xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns2:genericDrug">
<DOSAGE>100 u/ml (approximately 0.58mg)</DOSAGE>
<GENERIC_DRUG_ID>2313</GENERIC_DRUG_ID>
<GENERIC_DRUG_NAME>Laronidase</GENERIC_DRUG_NAME>
<PHARMACEUTICAL_FORM>concentrate for solution for infusion</PHARMACEUTICAL_FORM>
</DRUG>
<RETURN_STATUS>SUCCESS</RETURN_STATUS>
</return>
</ns2:getGenericDrugsResponse>
</S:Body>
</S:Envelope>
</Body>
</GovTalkMessage>
I have generated the classes through Paste XML as Classes feature of Visual Studio 2017. (Using the xsd.exe is the same) I have not changed the generated classes.
They have the following form:
// NOTE: Generated code may require at least .NET Framework 4.5 or .NET Core/Standard 2.0.
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://www.govtalk.gov.uk/CM/envelope", IsNullable = false)]
public partial class GovTalkMessage
{
private decimal envelopeVersionField;
private GovTalkMessageHeader headerField;
private GovTalkMessageGovTalkDetails govTalkDetailsField;
private GovTalkMessageBody bodyField;
/// <remarks/>
public decimal EnvelopeVersion
{
get
{
return this.envelopeVersionField;
}
set
{
this.envelopeVersionField = value;
}
}
/// <remarks/>
public GovTalkMessageHeader Header
{
get
{
return this.headerField;
}
set
{
this.headerField = value;
}
}
/// <remarks/>
public GovTalkMessageGovTalkDetails GovTalkDetails
{
get
{
return this.govTalkDetailsField;
}
set
{
this.govTalkDetailsField = value;
}
}
/// <remarks/>
public GovTalkMessageBody Body
{
get
{
return this.bodyField;
}
set
{
this.bodyField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageHeader
{
private GovTalkMessageHeaderMessageDetails messageDetailsField;
private GovTalkMessageHeaderSenderDetails senderDetailsField;
/// <remarks/>
public GovTalkMessageHeaderMessageDetails MessageDetails
{
get
{
return this.messageDetailsField;
}
set
{
this.messageDetailsField = value;
}
}
/// <remarks/>
public GovTalkMessageHeaderSenderDetails SenderDetails
{
get
{
return this.senderDetailsField;
}
set
{
this.senderDetailsField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageHeaderMessageDetails
{
private string classField;
private string qualifierField;
private string functionField;
private string correlationIDField;
private string transformationField;
/// <remarks/>
public string Class
{
get
{
return this.classField;
}
set
{
this.classField = value;
}
}
/// <remarks/>
public string Qualifier
{
get
{
return this.qualifierField;
}
set
{
this.qualifierField = value;
}
}
/// <remarks/>
public string Function
{
get
{
return this.functionField;
}
set
{
this.functionField = value;
}
}
/// <remarks/>
public string CorrelationID
{
get
{
return this.correlationIDField;
}
set
{
this.correlationIDField = value;
}
}
/// <remarks/>
public string Transformation
{
get
{
return this.transformationField;
}
set
{
this.transformationField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageHeaderSenderDetails
{
private GovTalkMessageHeaderSenderDetailsIDAuthentication iDAuthenticationField;
/// <remarks/>
public GovTalkMessageHeaderSenderDetailsIDAuthentication IDAuthentication
{
get
{
return this.iDAuthenticationField;
}
set
{
this.iDAuthenticationField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageHeaderSenderDetailsIDAuthentication
{
private object senderIDField;
private GovTalkMessageHeaderSenderDetailsIDAuthenticationAuthentication authenticationField;
/// <remarks/>
public object SenderID
{
get
{
return this.senderIDField;
}
set
{
this.senderIDField = value;
}
}
/// <remarks/>
public GovTalkMessageHeaderSenderDetailsIDAuthenticationAuthentication Authentication
{
get
{
return this.authenticationField;
}
set
{
this.authenticationField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageHeaderSenderDetailsIDAuthenticationAuthentication
{
private object methodField;
private object roleField;
private object valueField;
/// <remarks/>
public object Method
{
get
{
return this.methodField;
}
set
{
this.methodField = value;
}
}
/// <remarks/>
public object Role
{
get
{
return this.roleField;
}
set
{
this.roleField = value;
}
}
/// <remarks/>
public object Value
{
get
{
return this.valueField;
}
set
{
this.valueField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageGovTalkDetails
{
private GovTalkMessageGovTalkDetailsKeys keysField;
/// <remarks/>
public GovTalkMessageGovTalkDetailsKeys Keys
{
get
{
return this.keysField;
}
set
{
this.keysField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageGovTalkDetailsKeys
{
private GovTalkMessageGovTalkDetailsKeysKey keyField;
/// <remarks/>
public GovTalkMessageGovTalkDetailsKeysKey Key
{
get
{
return this.keyField;
}
set
{
this.keyField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageGovTalkDetailsKeysKey
{
private string typeField;
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string Type
{
get
{
return this.typeField;
}
set
{
this.typeField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class GovTalkMessageBody
{
private Envelope envelopeField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute(Namespace = "http://www.w3.org/2003/05/soap-envelope")]
public Envelope Envelope
{
get
{
return this.envelopeField;
}
set
{
this.envelopeField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.w3.org/2003/05/soap-envelope")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://www.w3.org/2003/05/soap-envelope", IsNullable = false)]
public partial class Envelope
{
private EnvelopeBody bodyField;
/// <remarks/>
public EnvelopeBody Body
{
get
{
return this.bodyField;
}
set
{
this.bodyField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.w3.org/2003/05/soap-envelope")]
public partial class EnvelopeBody
{
private getGenericDrugsResponse getGenericDrugsResponseField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute(Namespace = "http://webservice.sirkb/")]
public getGenericDrugsResponse getGenericDrugsResponse
{
get
{
return this.getGenericDrugsResponseField;
}
set
{
this.getGenericDrugsResponseField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://webservice.sirkb/")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://webservice.sirkb/", IsNullable = false)]
public partial class getGenericDrugsResponse
{
private @return returnField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute(Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public @return @return
{
get
{
return this.returnField;
}
set
{
this.returnField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "http://www.govtalk.gov.uk/CM/envelope", IsNullable = false)]
public partial class @return
{
private returnDRUG[] dRUGField;
private string rETURN_STATUSField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("DRUG")]
public returnDRUG[] DRUG
{
get
{
return this.dRUGField;
}
set
{
this.dRUGField = value;
}
}
/// <remarks/>
public string RETURN_STATUS
{
get
{
return this.rETURN_STATUSField;
}
set
{
this.rETURN_STATUSField = value;
}
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class returnDRUG
{
private string dOSAGEField;
private ushort gENERIC_DRUG_IDField;
private string gENERIC_DRUG_NAMEField;
private string pHARMACEUTICAL_FORMField;
/// <remarks/>
public string DOSAGE
{
get
{
return this.dOSAGEField;
}
set
{
this.dOSAGEField = value;
}
}
/// <remarks/>
public ushort GENERIC_DRUG_ID
{
get
{
return this.gENERIC_DRUG_IDField;
}
set
{
this.gENERIC_DRUG_IDField = value;
}
}
/// <remarks/>
public string GENERIC_DRUG_NAME
{
get
{
return this.gENERIC_DRUG_NAMEField;
}
set
{
this.gENERIC_DRUG_NAMEField = value;
}
}
/// <remarks/>
public string PHARMACEUTICAL_FORM
{
get
{
return this.pHARMACEUTICAL_FORMField;
}
set
{
this.pHARMACEUTICAL_FORMField = value;
}
}
}
I get the following error:
System.InvalidOperationException: 'There is an error in XML document (33, 14).'
Inner Exception
InvalidOperationException: The specified type was not recognized: name='genericDrug', namespace=' http://webservice.sirkb/ ', at http://www.govtalk.gov.uk/CM/envelope'>.
I have noticed from this thread that if I remove xsi:type="ns2:genericDrug" from the XML file I can deserialize the XML. I can't modify the XML because it is the response I get for the request. It is not a good practice to do a string replace on XML, so I am looking for a better solution.
This might be a duplicate question from this one , but since I am not able to solve the problem I am posting it again because it is difficult to get help in the comment section.
Based on the above question I have tried to change the annotation of public partial class returnDRUG
from
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
to
[System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://www.w3.org/2001/XMLSchema-instance", TypeName = "genericDrug")]
but still cant parse the XML.
The parsing code is simple
var deserializer = new XmlSerializer(typeof(GovTalkMessage));
TextReader textReader = new StreamReader("drug.xml"); //saved response in file for simplicity
GovTalkMessage response;
response = (GovTalkMessage)deserializer.Deserialize(textReader);
textReader.Close();
What can I do to deserialize the XML in the GovTalkMessage object?
1 answers
solution1
0 ACCPTED 2018-10-13 09:07:37
You need to change the decoration on the returnDRUG class
from this
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true, Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public partial class returnDRUG
to this
[System.Xml.Serialization.XmlTypeAttribute(TypeName = "genericDrug", Namespace = "http://webservice.sirkb/")]
public partial class returnDRUG
Specify it's type as "genericDrug", and the crucial bit, correct it's namespace to " http://webservice.sirkb/ "
I've just used you code and managed to de-serialize using this change.
The explanation is that if you take a look at the definition of DRUG you can see that it's type is defined as "genericDRUG" in the namespace alias "ns2"
<DRUG xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns2:genericDrug">
if you look at the definition of the ns2 alias you can see that it's " http://webservice.sirkb/ "
<ns2:getGenericDrugsResponse xmlns:ns2="http://webservice.sirkb/">
Some addition to prevent default values for DRUG objects
Every property of the returnDrug class should have the namespace http://www.govtalk.gov.uk/CM/envelope .
The complete class should have the following form:
[System.Xml.Serialization.XmlTypeAttribute(TypeName = "genericDrug", Namespace = "http://webservice.sirkb/")]
public partial class returnDRUG
{
private string dOSAGEField;
private ushort gENERIC_DRUG_IDField;
private string gENERIC_DRUG_NAMEField;
private string pHARMACEUTICAL_FORMField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute(Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public string DOSAGE
{
get
{
return this.dOSAGEField;
}
set
{
this.dOSAGEField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute(Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public ushort GENERIC_DRUG_ID
{
get
{
return this.gENERIC_DRUG_IDField;
}
set
{
this.gENERIC_DRUG_IDField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute(Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public string GENERIC_DRUG_NAME
{
get
{
return this.gENERIC_DRUG_NAMEField;
}
set
{
this.gENERIC_DRUG_NAMEField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute(Namespace = "http://www.govtalk.gov.uk/CM/envelope")]
public string PHARMACEUTICAL_FORM
{
get
{
return this.pHARMACEUTICAL_FORMField;
}
set
{
this.pHARMACEUTICAL_FORMField = value;
}
}
}
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