I am trying to write a serialized xml object to an xml file with some XmlWriterSettings in place. The XML is written alright but none of the XmlWriterSettings seem to work.

Below is what I have tried so far.

Attempt 1:

var serializer = new XmlSerializer(typeof(MyObject));
using (var stream = new StreamWriter(outXmlFile))
using (var xmlWriter = XmlWriter.Create(stream, new XmlWriterSettings() { OmitXmlDeclaration = true, Indent = true, IndentChars = "t", Encoding = Encoding.UTF8 }))
    serializer.Serialize(stream, xmlObj);

Attempt 2:

var serializer = new XmlSerializer(typeof(MyObject));
string xmlStr;
using (var memoryStream = new MemoryStream())
using (var xmlWriter = XmlWriter.Create(memoryStream, new XmlWriterSettings() { OmitXmlDeclaration = true, Indent = true, IndentChars = "t", Encoding = Encoding.UTF8 }))
{
    serializer.Serialize(memoryStream, xmlObj);
    memoryStream.Seek(0, SeekOrigin.Begin);
    var streamReader = new StreamReader(memoryStream);
    xmlStr = streamReader.ReadToEnd();
}

 using (var streamWriter = new StreamWriter(outXmlFile, false, Encoding.UTF8))
     streamWriter.WriteLine(xmlStr);

Am I missing something or not using correctly?