Serializing object to XML

[Wayne]

Below is some code we have for converting our objects to XML. Both convert
the XML just fine, but I have a question about a small differnance.

The first block of code outputs the ?xm tag with utf-16, the second block
outputs it with utf-8. Why do they generate the header differnt? And why
would IE complain about the utf-16 file with the following error:

Switch from current encoding to specified encoding not supported.

Thanks
Wayne

string fileName = @"C:\Temp.xml";
StreamWriter sr = File.CreateText(fileName);
XmlSerializer serializer = new
XmlSerializer(typeof(USERINSPECTIONLETTERS));
TextWriter textwriter = new StringWriter();
serializer.Serialize(textwriter, letters);
sr.WriteLine(textwriter.ToString());
sr.Close();

XmlSerializer serializer2 = new
XmlSerializer(typeof(USERINSPECTIONLETTERS));
TextWriter writer = new StreamWriter(@"C:\Temp2.xml");
serializer2.Serialize(writer, letters);
writer.Close();

[Derek Harmon]

"Wayne" <Me******@community.nospam> wrote in message news:Oz**************@TK2MSFTNGP09.phx.gbl...

The first block of code outputs the ?xm tag with utf-16, the second block
outputs it with utf-8. Why do they generate the header differnt? : : TextWriter textwriter = new StringWriter();
serializer.Serialize(textwriter, letters); : : TextWriter writer = new StreamWriter(@"C:\Temp2.xml");
serializer2.Serialize(writer, letters);

Strings are always UTF-16 encoded in .NET (two bytes per character), that's why the first
block emits the encoding as being UTF-16.

Otherwise, XML serialization defaults to UTF-8, as exhibited by the second block of code.
Derek Harmon

[Wayne]

Thank you
Wayne

"Derek Harmon" <lo*******@msn.com> wrote in message
news:uw**************@tk2msftngp13.phx.gbl...

"Wayne" <Me******@community.nospam> wrote in message news:Oz**************@TK2MSFTNGP09.phx.gbl...

The first block of code outputs the ?xm tag with utf-16, the second block outputs it with utf-8. Why do they generate the header differnt?

: :

TextWriter textwriter = new StringWriter();
serializer.Serialize(textwriter, letters);

: :

TextWriter writer = new StreamWriter(@"C:\Temp2.xml");
serializer2.Serialize(writer, letters);

Strings are always UTF-16 encoded in .NET (two bytes per character),

that's why the first block emits the encoding as being UTF-16.

Otherwise, XML serialization defaults to UTF-8, as exhibited by the second block of code.

Derek Harmon