Linq XML problems using namespace . net

Question

I am using a namespace at the moment I create my xml, but xmlns is also appearing in the tag below the root, this is hurting me, how can I make 'xmlns' get apernas in the root tag (Tlote_gnre)? Follows the code:

Dim xDoc As New XDocument(New XDeclaration("1.0", "utf-8", Nothing))
Dim nS As XNamespace = "http://www.gnre.pe.gov.br"

Dim xGuias As XElement = New XElement("guias")
xDoc.Add(New XElement(nS + "TLote_GNRE", xGuias))

Dim sw As New StringWriter()
Dim xWrite As XmlWriter = XmlWriter.Create(sw)

xDoc.Save(xWrite)
xWrite.Close()

xDoc.Save("C:\xml.xml")

XML output:

<?xml version="1.0" encoding="UTF-8"?>
 <TLote_GNRE xmlns="http://www.gnre.pe.gov.br">
 <guias xmlns=""/>
</TLote_GNRE>

Answer 1

Removing the variable nS from here:

xDoc.Add(New XElement(nS + "TLote_GNRE", xGuias))

I think it was confusing the way you used it. The right thing would be to use it like this:

Dim raiz As XElement = New XElement("TLote_GNRE", new XAttribute("Xmlns", ns))

Dim xGuias As XElement = New XElement(ns + "guias")
raiz.Add(xGuias)
xDoc.Add(raiz)

Note that "guias" also needs the namespace.