我试图建立的XmlDocument，这样序列化之后，我可以做到这样的XML：

I'm trying to build XmlDocument so that after serialization I could achieve something like this xml:

<?xml version="1.0" encoding="UTF-8"?>
<wnio:element xmlns:wnio="somuri" xmlns:xf="abcd">
   <xf:nestedelement>somtext</xf:nestedelement>
</wnio:element>

的事情之一是，允许的XmlElement通过的namespaceURI和preFIX性能只能指定一个命名空间。我怎样才能实现这种功能？

The things is that XmlElement allows to specify ONLY ONE namespace via NamespaceURI and Prefix properties. How can I accomplish this kind of functionality?

推荐答案

属性的xmlns：wnio和的xmlns：XF就像任何其他的属性。简单地将它们添加到您希望这些XML命名空间范围的的XmlElement。

The attributes "xmlns:wnio" and "xmlns:xf" are attributes like any other. Simply add them to the XmlElement that you would like these XML Namespaces to scope to.

下面的代码片段产生几乎正是你想要的：

The following snippet produces almost exactly what you want:

XmlDocument document = new XmlDocument();
document.AppendChild(document.CreateElement("wnio", "element", "somuri"));
document.DocumentElement.SetAttribute("xmlns:xf", "abcd");
document.DocumentElement.AppendChild(document.CreateElement("xf", "nestedelement", "abcd"));