I am using the following code to create an xml document -
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("", "");
new XmlSerializer(typeof(docket)).Serialize(Console.Out, i, ns);
this works great in creating the xml file with no namespace attributes. i would like to also have no encoding attribute in the root element, but I cannot find a way to do it. Does anyone have any idea if this can be done?
Thanks
Old answer removed and update with new solution:
Assuming that it's ok to remove the xml declaration completly, because it makes not much sense without the encoding attribute:
XmlSerializerNamespaces ns = new XmlSerializerNamespaces(); ns.Add("", "");
using (XmlWriter writer = XmlWriter.Create(Console.Out, new XmlWriterSettings { OmitXmlDeclaration = true}))
{
new XmlSerializer(typeof (SomeType)).Serialize(writer, new SomeType(), ns);
}
To remove encoding from XML header pass TextWriter with null encoding to XmlSerializer:
MemoryStream ms = new MemoryStream();
XmlTextWriter w = new XmlTextWriter(ms, null);
s.Serialize(w, vs);
Explanation
XmlTextWriter uses encoding from TextWriter passed in constructor:
// XmlTextWriter constructor
public XmlTextWriter(TextWriter w) : this()
{
this.textWriter = w;
this.encoding = w.Encoding;
..
It uses this encoding when generating XML:
// Snippet from XmlTextWriter.StartDocument
if (this.encoding != null)
{
builder.Append(" encoding=");
...
encoding which is null is a good way to achieve this. Note that according to section 2.8 of the XML 1.1 Recommendation it is perfectly legal to not include an encoding declaration inside the XML declaration. In that case the XML declaration looks like: <?xml version="1.1"?> (or <?xml version="1.0"?> for XML 1.0).string withEncoding;
using (System.IO.MemoryStream memory = new System.IO.MemoryStream()) {
using (System.IO.StreamWriter writer = new System.IO.StreamWriter(memory)) {
serializer.Serialize(writer, obj, null);
using (System.IO.StreamReader reader = new System.IO.StreamReader(memory)) {
memory.Position = 0;
withEncoding= reader.ReadToEnd();
}
}
}
string withOutEncoding= withEncoding.Replace("<?xml version=\"1.0\" encoding=\"utf-8\"?>", "");
Credit to this blog for helping me with my code http://blog.dotnetclr.com/archive/2008/01/29/removing-declaration-and-namespaces-from-xml-serialization.aspx
here's my solution, same idea, but in VB.NET and a little clearer in my opinion.
Dim sw As StreamWriter = New, StreamWriter(req.GetRequestStream,System.Text.Encoding.ASCII)
Dim xSerializer As XmlSerializer = New XmlSerializer(GetType(T))
Dim nmsp As XmlSerializerNamespaces = New XmlSerializerNamespaces()
nmsp.Add("", "")
Dim xWriterSettings As XmlWriterSettings = New XmlWriterSettings()
xWriterSettings.OmitXmlDeclaration = True
Dim xmlWriter As XmlWriter = xmlWriter.Create(sw, xWriterSettings)
xSerializer.Serialize(xmlWriter, someObjectT, nmsp)
