关于C#读取xml小例子

1.首先这是一个xml文件
<?xml version="1.0" encoding="utf-8"?>
<Document>
  <Events>
    <Event Name="SalesWareHouseOut" MainAction="WareHouseOut">
      <ActionMaping>
        <Action Name="WareHouseOut">
          <ActionData>Code</ActionData>
          <ActionData>CorpOrderID</ActionData>
          <ActionData>Actor</ActionData>
          <ActionData>ActDate</ActionData>
        </Action>
      </ActionMaping>
      <DataMaping>
        <MetaData Name="Code" Type="string" />
        <MetaData Name="CorpOrderID" Type="string" />
        <MetaData Name="Actor" Type="string" />
        <MetaData Name="ActDate" Type="Date" />
      </DataMaping>
      <DataField>
        <Data Code="81143900028040251957" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900027511806124" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900027510453880" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900027509255484" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900027508057635" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900027508204343" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900027509403677" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900027510601766" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900027511950686" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
        <Data Code="81143900028040405694" ReplaceCode="" CorpOrderID="138204" Actor="1" ActDate="2013-12-19 08:47:09" WrongCode="" UpperCorpOrderID="" />
      </DataField>
    </Event>
  </Events>
</Document>
如何获取到所有的CorpOrderID

using System.Xml.Linq;//引用这个命名空间

XElement xml = XElement.Load(@"D:\Test\user.xml");//加载这个xml

var query = xml.Descendants("Data");//获取Data节点

foreach (var item in query)

{

    Console.WriteLine(item.Attribute("CorpOrderID").Value);//获取属性为CorpOrderID的值.

}