#### XML Serialization without Attributes?

Hello,

I'm programming with Visual Studio 2005 for .net 2.0 in C#. Very often I
use XML Serilization [1].
Some of the output files can be edited by the user with an external
editor. What I don't like are some attributes which are inserted into
the fily by the serializer, and which may confuse the user.

Example:
| <?xml version="1.0"?>
| <Summary xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd = "http://www.w3.org/2001/XMLSchema">
|       <CurrentCQI>
|             <Incident>
|                   <CQI>
<snip>

I'd like to have something like that:
| <Summary>
|       <CurrentCQI>
|             <Incident>
|                   <CQI>
<snip>

The "?xml version" and xmlns attributes are not needed for
deserialization. XML files which were written manually without this
information are deserialized without problem.

Is there a possibility to tell the serializer to leave this data out of
the output file?

TIA,
Christian

[1] Here's the kind of code I use for serialization:

public object Data; // The object to be saved, set by a different method
private Type SType; // The type of the object
private FileStream DStream;
private XmlSerializer XmlSer;

SType = Data.GetType();
XmlSer = new XmlSerializer(SType);

DStream = new FileStream(p, FileMode.CreateNew);
XmlSer.Serialize(DStream, Data);

 0
11/7/2009 3:03:24 PM
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Christian Treffler wrote:

> I'm programming with Visual Studio 2005 for .net 2.0 in C#. Very often I
> use XML Serilization [1].
> Some of the output files can be edited by the user with an external
> editor. What I don't like are some attributes which are inserted into
> the fily by the serializer, and which may confuse the user.
>
> Example:
> | <?xml version="1.0"?>
> | <Summary xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd = "http://www.w3.org/2001/XMLSchema">
> |       <CurrentCQI>
> |             <Incident>
> |                   <CQI>
> <snip>
>
> I'd like to have something like that:
> | <Summary>
> |       <CurrentCQI>
> |             <Incident>
> |                   <CQI>
> <snip>
>
> The "?xml version" and xmlns attributes are not needed for
> deserialization.

<?xml version="1.0"?> is not an attribute, it is the XML declaration. If
you don't want that then serialize to an XmlWriter with the
XmlWriterSettings specifying to omit the XML declaration e.g.

XmlWriterSettings xws = new XmlWriterSettings();
xws.OmitXmlDeclaration = true;
xws.Indent = true;

XmlSerializer ser = new XmlSerializer(typeof(Foo));

using (XmlWriter writer = XmlWriter.Create(@"file.xml", xws))
{
ser.Serialize(writer, fooInstance);
writer.Close();
}
--

Martin Honnen --- MVP XML
http://msmvps.com/blogs/martin_honnen/

 0
mahotrash (1777)
11/7/2009 4:46:55 PM
Christian Treffler wrote:

> I'm programming with Visual Studio 2005 for .net 2.0 in C#. Very often I
> use XML Serilization [1].
> Some of the output files can be edited by the user with an external
> editor. What I don't like are some attributes which are inserted into
> the fily by the serializer, and which may confuse the user.
>
> Example:
> | <?xml version="1.0"?>
> | <Summary xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd = "http://www.w3.org/2001/XMLSchema">
> |       <CurrentCQI>
> |             <Incident>
> |                   <CQI>
> <snip>
>
> I'd like to have something like that:
> | <Summary>
> |       <CurrentCQI>
> |             <Incident>
> |                   <CQI>
> <snip>
>
> The "?xml version" and xmlns attributes are not needed for
> deserialization. XML files which were written manually without this
> information are deserialized without problem.

If you think you don't need them then you can get rid of the xmlns:xsi
and xmlns:xsd attributes as follows:

XmlSerializer ser = new XmlSerializer(typeof(Foo));
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();

using (XmlWriter writer = XmlWriter.Create(@"file.xml", xws))
{
ser.Serialize(writer, fooInstanceObject, ns);
writer.Close();
}

--

Martin Honnen --- MVP XML
http://msmvps.com/blogs/martin_honnen/

 0
mahotrash (1777)
11/7/2009 6:48:51 PM
Martin Honnen wrote:

> <?xml version="1.0"?> is not an attribute, it is the XML declaration. If
> you don't want that then serialize to an XmlWriter with the
> XmlWriterSettings
<snip>

Martin, thank you for your inputs. I implemented them and found that the
XmlWriterSettings provided some additional means to control the output.
That was very useful.

Christian

 0
11/9/2009 2:30:48 PM

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