如何把一个XML文件,根据条件生成新的XML文件?
现有如下XML文档FILE1.XML
-   <TREENODES>
    <treenode     id= "001 "   text= "门店管理 "   >
          <treenode     id= "011 "   text= "打印管理 "   >
                <treenode     id= "111 "   text= "中店管理 "/>
          </treenode>
          <treenode     id= "012 "   text= "小店管理 "/>
    </treenode
    <treenode     id= "002 "   text= "前台收款 "     />  
    <treenode     id= "003 "   text= "卖货收款 "     />  
    <treenode     id= "004 "   text= "收款 "     />  
    <treenode     id= "005 "   text= "前收款 "     />  
--   </TREENODES>
想输入动态条件如:   "001,003,011,111 "   字符串,然后生成有如:   FILE2.XML
-   <TREENODES>
    <treenode     id= "001 "   text= "门店管理 "   >
          <treenode     id= "011 "   text= "打印管理 "   >
                <treenode     id= "111 "   text= "中店管理 "/>
          </treenode>
          <treenode     id= "012 "   text= "小店管理 "/>
    </treenode
    <treenode     id= "003 "   text= "卖货收款 "     />  
--   </TREENODES>
内容的XML文件
请教在.NET中该如何做?


------解决方案--------------------
string s = "001,003,011,111 ";
s = ", " + s + ", ";
System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
doc.Load(Server.MapPath( "1.xml "));
System.Xml.XmlNodeList nodes = doc.SelectNodes( "/TREENODES/treenode ");
foreach(System.Xml.XmlNode n in nodes)
{
if(s.IndexOf( ", " + n.Attributes[ "id "].Value + ", ") == -1)
{
n.ParentNode.RemoveChild(n);
}
}
doc.Save(Server.MapPath( "2.xml "));