问我有一个具有多个siteserver元素的xml，我希望将所有siteserver元素分组到Siteservers父节点

EN

<Sites>
    <SiteServer>
      <ID>4</ID>
      <SiteID>4</SiteID>
      <ServerName>New server</ServerName>
      <IPAddress>1022216522</IPAddress>
      <PDPServer>true</PDPServer>
      <bFTPS>false</bFTPS>
    </SiteServer>
    <SiteServer>
      <ID>4</ID>
      <SiteID>4</SiteID>
      <ServerName>New server</ServerName>
      <IPAddress>1022216522</IPAddress>
      <PDPServer>true</PDPServer>
      <bFTPS>false</bFTPS>
    </SiteServer>
</Sites>

<Sites>
    <SiteServers>
    <SiteServer>
      <ID>4</ID>
      <SiteID>4</SiteID>
      <ServerName>New server</ServerName>
      <IPAddress>1022216522</IPAddress>
      <PDPServer>true</PDPServer>
      <bFTPS>false</bFTPS>
    </SiteServer>
    <SiteServer>
      <ID>4</ID>
      <SiteID>4</SiteID>
      <ServerName>New server</ServerName>
      <IPAddress>1022216522</IPAddress>
      <PDPServer>true</PDPServer>
      <bFTPS>false</bFTPS>
    </SiteServer>
    </SiteServers>
</Sites>

var xml = XDocument.Load(@"C:\Users\rbarnwal\source\repos\testXML\testXML\ExportXml2.xml");
var result = new XElement(xml.Root.Name, xml.Root.Elements().GroupBy(x => x.Name).Select(x =>
    new XElement("Parent", new XAttribute("name", x.Key))));

var result2 = new XElement(xml.Root.Name, xml.Root.Attributes().ToArray(),
    xml.Root.Elements().GroupBy(x => x.Element("SiteServer").Value.Trim()).Select(x =>
        new XElement("SiteServers"))
);