Question about C# classes generated from a .xsd via xsd.exe in VS 2003

[Roy Chastain]

I have a schema that has been in existence over 1 year. I have been making a few minor modifications to it recently and suddenly
the generated C# classes have made a radical change.

I have just compared the xsd source to the last compiled version on 8/25/06 and they are identical, yet the generated C# is
different. I do not know enough about XSD and schemas to understand how the original output was generated, but I need to get it
back.

I am showing an excerpt from the schema and the old and new generated C# class.

<xs:complexTy pe name="ListenerI tem">
<xs:sequence>
<xs:choice id="HostFormat" >
<xs:element name="HostName" type="mstns:Ful lyQualifiedName Type" />
<xs:element name="HostAddre ss" type="mstns:IPA ddressTypeV4" />
<xs:element name="Any" type="xs:string " />
</xs:choice>
<xs:element ref="mstns:Clie ntType" />
<xs:element name="HostPort" type="mstns:Por tNumberType" />
<xs:element name="NumThread s" type="xs:unsign edInt" />
<xs:element name="InitialSt ate" type="mstns:Lis tenerState" />
<xs:element name="Name" type="xs:string " nillable="false "></xs:element>
<xs:element name="AllowGene ricStation" type="xs:boolea n" nillable="false " default="false" ></xs:element>
<xs:element name="AllowClie ntSuppliedStati on" type="xs:boolea n" nillable="false " default="false" />
<xs:element name="AllowHost Lookup" type="xs:boolea n" nillable="false " default="false" />
<xs:element name="ClientVer sion" type="mstns:Cli entVersion" />
<xs:element name="Encryptio nRequirements" type="mstns:Enc ryptionEnum" />
<xs:element name="Authenica tionRequirement sRequired" type="mstns:Aut henicationEnum" />
<xs:element name="Authenica tionRequirement sAllowed" type="mstns:Aut henicationEnum" />
<xs:element name="KeepAlive Interval" type="xs:unsign edInt" default="5" />
<xs:element name="KeepAlive Units" type="KeepAlive UnitsType" default="Minute s" />
</xs:sequence>
</xs:complexType>

OLD C# Code
[System.Xml.Seri alization.XmlTy peAttribute(Nam espace="http://tempuri.org/XMLSchema.xsd")]
public class ListenerItem {

/// <remarks/>
[System.Xml.Seri alization.XmlEl ementAttribute( "HostAddres s", typeof(string))]
[System.Xml.Seri alization.XmlEl ementAttribute( "Any", typeof(string))]
[System.Xml.Seri alization.XmlEl ementAttribute( "HostName", typeof(string))]
[System.Xml.Seri alization.XmlCh oiceIdentifierA ttribute("ItemE lementName")]
public string Item;

/// <remarks/>
[System.Xml.Seri alization.XmlIg noreAttribute()]
public AddressTypeChoi ceWithAny ItemElementName ; <------------ see this line below

/// <remarks/>
public ClientType ClientType;
.......

NEW C# Code
[System.Xml.Seri alization.XmlTy peAttribute(Nam espace="http://tempuri.org/XMLSchema.xsd")]
public class ListenerItem {

/// <remarks/>
[System.Xml.Seri alization.XmlEl ementAttribute( "HostAddres s", typeof(string))]
[System.Xml.Seri alization.XmlEl ementAttribute( "Any", typeof(string))]
[System.Xml.Seri alization.XmlEl ementAttribute( "HostName", typeof(string))]
[System.Xml.Seri alization.XmlCh oiceIdentifierA ttribute("ItemE lementName")]
public string Item;

/// <remarks/>
[System.Xml.Seri alization.XmlIg noreAttribute()]
public ItemChoiceType1 ItemElementName ; <-------------- See type changed

/// <remarks/>
public ClientType ClientType;
.......

I would expect that most of you would say that I am crazy or that I have not been generating from the xsd that I though that I
had, but I have gone back in VSS for over the past year and that part of the schema has not changed and the generated C# has not
changed until today.

Could someone please tell me what to put into the schema to turn ItemChoiceType1 back to AddressTypeChoi ceWithAny?

Thanks
-------------------------------------------
Roy Chastain
KMSYS Worldwide, Inc.
http://www.kmsys.com

[John Saunders]

"Roy Chastain" <ro*@kmsys.comw rote in message
news:39******** *************** *********@4ax.c om...

>I have a schema that has been in existence over 1 year. I have been making
a few minor modifications to it recently and suddenly
the generated C# classes have made a radical change.

...

I would expect that most of you would say that I am crazy or that I have
not been generating from the xsd that I though that I
had, but I have gone back in VSS for over the past year and that part of
the schema has not changed and the generated C# has not
changed until today.

I see that you already know the answer to the question. Now, all you have to
do is believe it and figure out how it happened.

Either:

1) If you don't change anything, but something changes anyway, then it's
because something changed, possibly because you changed it.
2) If you change something, but the outputs don't change, then either you
didn't change it, or you're looking at the wrong outputs.

But you already know this, you just prefer to think that something magical
happened instead. It didn't. Get that clear in your mind, and you can begin
to solve the real problem.

John

"Once you have elimintated the impossible, that which remains, no matter how
unlikely, is the truth.", S. Holmes

[Kevin Yu [MSFT]]

Hi Roy,

The xsd.exe analyzes the whole schema and generates the class. A small
change may result in a big change as John mentioned. Do you have any
concern on the change of the generated class? If so, maybe we can find a
workaround for that.

Kevin Yu
Microsoft Online Community Support

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[Priya Lakshminarayanan]

Even though you havent changed the schema, did you upgrade your framework
from .NET 1.0/1.1 to .NET 2.0?

Thanks,
Priya

"Roy Chastain" <ro*@kmsys.comw rote in message
news:39******** *************** *********@4ax.c om...

>I have a schema that has been in existence over 1 year. I have been making
a few minor modifications to it recently and suddenly
the generated C# classes have made a radical change.

I have just compared the xsd source to the last compiled version on
8/25/06 and they are identical, yet the generated C# is
different. I do not know enough about XSD and schemas to understand how
the original output was generated, but I need to get it
back.

I am showing an excerpt from the schema and the old and new generated C#
class.

<xs:complexTy pe name="ListenerI tem">
<xs:sequence>
<xs:choice id="HostFormat" >
<xs:element name="HostName" type="mstns:Ful lyQualifiedName Type" />
<xs:element name="HostAddre ss" type="mstns:IPA ddressTypeV4" />
<xs:element name="Any" type="xs:string " />
</xs:choice>
<xs:element ref="mstns:Clie ntType" />
<xs:element name="HostPort" type="mstns:Por tNumberType" />
<xs:element name="NumThread s" type="xs:unsign edInt" />
<xs:element name="InitialSt ate" type="mstns:Lis tenerState" />
<xs:element name="Name" type="xs:string " nillable="false "></xs:element>
<xs:element name="AllowGene ricStation" type="xs:boolea n" nillable="false "
default="false" ></xs:element>
<xs:element name="AllowClie ntSuppliedStati on" type="xs:boolea n"
nillable="false " default="false" />
<xs:element name="AllowHost Lookup" type="xs:boolea n" nillable="false "
default="false" />
<xs:element name="ClientVer sion" type="mstns:Cli entVersion" />
<xs:element name="Encryptio nRequirements" type="mstns:Enc ryptionEnum" />
<xs:element name="Authenica tionRequirement sRequired"
type="mstns:Aut henicationEnum" />
<xs:element name="Authenica tionRequirement sAllowed"
type="mstns:Aut henicationEnum" />
<xs:element name="KeepAlive Interval" type="xs:unsign edInt" default="5" />
<xs:element name="KeepAlive Units" type="KeepAlive UnitsType"
default="Minute s" />
</xs:sequence>
</xs:complexType>

OLD C# Code

[System.Xml.Seri alization.XmlTy peAttribute(Nam espace="http://tempuri.org/XMLSchema.xsd")]
public class ListenerItem {

/// <remarks/>
[System.Xml.Seri alization.XmlEl ementAttribute( "HostAddres s",
typeof(string))]
[System.Xml.Seri alization.XmlEl ementAttribute( "Any",
typeof(string))]
[System.Xml.Seri alization.XmlEl ementAttribute( "HostName",
typeof(string))]

[System.Xml.Seri alization.XmlCh oiceIdentifierA ttribute("ItemE lementName")]
public string Item;

/// <remarks/>
[System.Xml.Seri alization.XmlIg noreAttribute()]
public AddressTypeChoi ceWithAny ItemElementName ; <------------ see
this line below

/// <remarks/>
public ClientType ClientType;
......

NEW C# Code

[System.Xml.Seri alization.XmlTy peAttribute(Nam espace="http://tempuri.org/XMLSchema.xsd")]
public class ListenerItem {

/// <remarks/>
[System.Xml.Seri alization.XmlEl ementAttribute( "HostAddres s",
typeof(string))]
[System.Xml.Seri alization.XmlEl ementAttribute( "Any",
typeof(string))]
[System.Xml.Seri alization.XmlEl ementAttribute( "HostName",
typeof(string))]

[System.Xml.Seri alization.XmlCh oiceIdentifierA ttribute("ItemE lementName")]
public string Item;

/// <remarks/>
[System.Xml.Seri alization.XmlIg noreAttribute()]
public ItemChoiceType1 ItemElementName ; <-------------- See type
changed

/// <remarks/>
public ClientType ClientType;
......

I would expect that most of you would say that I am crazy or that I have
not been generating from the xsd that I though that I
had, but I have gone back in VSS for over the past year and that part of
the schema has not changed and the generated C# has not
changed until today.

Could someone please tell me what to put into the schema to turn
ItemChoiceType1 back to AddressTypeChoi ceWithAny?

Thanks
-------------------------------------------
Roy Chastain
KMSYS Worldwide, Inc.
http://www.kmsys.com