C#中怎么获得xml节点的值？ - .NET技术 / C#

<?xml version="1.0" encoding="utf-8" ?> 
<LocalPara xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <DataBaseType>1</DataBaseType> 
  <ServerIp>127.0.0.1</ServerIp> 
  <Database>mw_db</Database> 
  <Uid>sa</Uid> 
  <Pwd>sasa</Pwd> 
  <SDE_Port>5151</SDE_Port> 
  <SDE_VER>90</SDE_VER> 
  <ThrowBFrame>0</ThrowBFrame> 
 </LocalPara>
如我有这样一个xml文件，我想获得<SDE_VER>节点的值，怎么获取？

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C# code:

XmlDocument doc = new XmlDocument();
doc.Load(filename);
XmlNodeList list = doc.ChildNodes;
foreach (XmlNode xn in list)
{
if (xn.Name == "SDE_VER")
{
return ne.InnerText
}
}

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引用

C# code

XmlDocument doc = new XmlDocument();
doc.Load(filename);
XmlNodeList list = doc.ChildNodes;
fo