Suppose you have a simple class
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| [Serializable, XmlRoot("LogEntry")]
public class LogFeeder
{
private Guid sourceId;
private String _Data;
private String _Log;
[XmlAttribute("DetailSourceId")]
public Guid SourceId {
get { return sourceId; }
set { sourceId = value; }
}
[XmlAttribute("Data")]
public string Data {
get { return _Data; }
set { _Data = value; }
}
[XmlAttribute("Log")]
public string Log {
get { return _Log; }
set { _Log = value; }
}
public LogIUriFeeder() {}
public LogIUriFeeder(Guid sourceId, string data, string log) {
this.sourceId = sourceId;
_Data = data;
_Log = log;
}
}
|
If you serialize with XmlSerializer you got this output as default
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| <?xml version="1.0" encoding="utf-16"?>
<LogEntry
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
DetailSourceId="63509b61-f7a0-44ea-955a-38cce19aa13a"
Data="data"
Log="log" />
|
This is not very satisfying because I need to store it in database as xml fragment or appending to an existing xml node; so I do not care about the namespace or the xml declaration and I want to remove the xml declaration. The trick is to use an XmlWriter to specify format of outputted XML, and use a Blank Namespace to avoid namespace declaration, here is the code
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| public static String ToXml(Object obj) {
XmlSerializer ser = new XmlSerializer(obj.GetType(), "");
StringWriter sw = new StringWriter();
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
settings.Indent = true;
settings.NewLineOnAttributes = true;
XmlSerializerNamespaces blank = new XmlSerializerNamespaces();
blank.Add("", "");
using (XmlWriter writer = XmlWriter.Create(sw, settings)) {
ser.Serialize(writer, obj, blank);
}
return sw.ToString();
}
|
With this code the result of the serialization is
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| <LogEntry
DetailSourceId="63509b61-f7a0-44ea-955a-38cce19aa13a"
Data="data"
Log="log" />
|
cleaner and shorter. With XmlWriterSettings you can also decide formatting, as example I prefer to have a new line on attributes, since my serialization is attribute centric.
alk.
Tags: XmlSerialization
