.net 对XML属性使用冒号字符时出错

如何使用类XDocument并将其属性名设置为接受冒号字符？我得到这个错误

名称中不能包含十六进制值0x3A的“：”字符

我只是希望下面使用XDocument类输出以下标题

<?xml version="1.0" encoding="UTF-8"?>
<urlset
      xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
            http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">

产出：

<urlset xmls="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xi="http://www.w3.org/2001/XMLSchema-instance" xi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" />

如果这是您要求的，请告诉我。

尝试（使用VS 2010，否则需要添加行连续字符）

Dim ns As XNamespace = "http://www.sitemaps.org/schemas/sitemap/0.9"
Dim xi As XNamespace = "http://www.w3.org/2001/XMLSchema-instance"

Dim sitemapValue As New XDocument(New XDeclaration("1.0", "utf-8", ""), New XElement("urlset", New XAttribute("xmls", ns),  _
                                     New XAttribute(XNamespace.Xmlns + "xi", xi), New XAttribute(xi + "schemaLocation", "http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd")))

<urlset xmls="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xi="http://www.w3.org/2001/XMLSchema-instance" xi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" />

Dim ns As XNamespace = "http://www.sitemaps.org/schemas/sitemap/0.9"
Dim xi As XNamespace = "http://www.w3.org/2001/XMLSchema-instance"

Dim doc As XDocument = New XDocument(
                       New XElement(ns + "urlset",
                                    New XAttribute(XNamespace.Xmlns + "xsi", xi),
                                    New XAttribute(xi + "schemaLocation", "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd")))