A few weeks ago, I upgraded an XML server of ours to .NET 2.0. All went
fine. Then last week, I decided to remove all obsolete calls from the app
and sign each project in the solution in the .NET 2 way so that the app
compiled with no warnings. This built fine but we noticed that server was
deserializing one
of our XML messages incorrectly. I confirmed via source control
that neither the schemas themselves nor the classes representing the
messages had been altered but the problem continued.
After some investigation, I found I could I could actively switch this bug
on and off in debug mode by switching between the .NET 1.1 and .NET 2.0 ways
of signing the assembly which contains the serialization code. By this I mean.
..NET 1.1 = Opening assemblyinfo.cs and identifying a key with [assembly:
AssemblyKeyFile (@"somekey)]
..NET 2.0 - Removing this line of code from assemblyinfo.cs and setting
the key to sign the project with in the project proerties dialog.
If I use the .NET 1.1 method, the XML is serialized correctly in debug
build but not in release build. If I use the .NET 2.0 method, the XMl is
serialized wrongly in both builds. I have now reverted all code back to the
original .NET 2.0 build but the problem still persists - debug build is fine
but release build continues to deserialize incorrectly, so I'm completely
lost now. I have pasted below highlights of the xml message as it should
appear, the xml message as it currently appears, the schema I'm working with
and the class which represents the elements being serialized.
Any ideas?
Dan Maharry
MSDN ID: 210068425
---
Correct XML.
<?xml version="1.0" encoding="utf-8"?>
<epp xmlns="urn:ietf :params:xml:ns: epp-1.0">
<greeting>
....
</greeting>
</epp>
---
Incorrect XML
<?xml version="1.0" encoding="utf-8"?>
<epp xmlns="urn:ietf :params:xml:ns: epp-1.0">
<hello d2p1:type="gree tingType"
xmlns:d2p1="htt p://www.w3.org/2001/XMLSchema-instance">
....
</hello>
</epp>
---
Schema (relevant pieces)
<?xml version="1.0" encoding="UTF-8" ?>
<schema targetNamespace ="urn:ietf:para ms:xml:ns:epp-1.0"
xmlns:epp="urn: ietf:params:xml :ns:epp-1.0"
xmlns:eppcom="u rn:ietf:params: xml:ns:eppcom-1.0"
xmlns="http://www.w3.org/2001/XMLSchema"
elementFormDefa ult="qualified" >
<!--
Import common element types.
-->
<import namespace="urn: ietf:params:xml :ns:eppcom-1.0"
schemaLocation= "eppcom-1.0.xsd" />
<annotation>
<documentatio n>
Extensible Provisioning Protocol v1.0 schema.
</documentation>
</annotation>
<element name="epp" type="epp:eppTy pe" />
<complexType name="eppType">
<choice>
<element name="greeting" type="epp:greet ingType" />
<element name="hello" />
<element name="command" type="epp:comma ndType" />
<element name="response" type="epp:respo nseType" />
<element name="extension " type="epp:extAn yType" />
</choice>
</complexType>
<complexType name="greetingT ype">
<sequence>
<element name="svID" type="epp:sIDTy pe" />
<element name="svDate" type="dateTime" />
<element name="svcMenu" type="epp:svcMe nuType" />
<element name="dcp" type="epp:dcpTy pe" />
</sequence>
</complexType>
---
C# class generated by xsd.exe
/// <remarks/>
[System.Xml.Seri alization.XmlTy peAttribute(Nam espace="urn:iet f:params:xml:ns :epp-1.0", TypeName="eppTy pe")]
[System.Xml.Seri alization.XmlRo otAttribute("ep p",
Namespace="urn: ietf:params:xml :ns:epp-1.0", IsNullable=fals e)]
public class EppType {
private object item;
/// <remarks/>
[System.Xml.Seri alization.XmlEl ementAttribute( "hello",
typeof(object))]
[System.Xml.Seri alization.XmlEl ementAttribute( "response",
typeof(Response Type))]
[System.Xml.Seri alization.XmlEl ementAttribute( "greeting",
typeof(Greeting Type))]
[System.Xml.Seri alization.XmlEl ementAttribute( "extension" ,
typeof(ExtAnyTy pe))]
[System.Xml.Seri alization.XmlEl ementAttribute( "command",
typeof(EppComma ndType))]
public object Item {
get {
return this.item;
}
set {
this.item = value;
}
}
}
