xml 查询问题
<users>
    <user>
        <userName> aaaa </userName>
        <userPassword> bbbb </userPassword>
    </user>
    <user>
        <userName> ssss </userName>
        <userPassword> dddd </userPassword>
    </user>
</users>
这是一个xml文档里的内容，我想用一个textbox输入字符串，对xml里的userName进行查询判断是否为输入的字符串，该如何来查询？
谢谢各位大侠帮忙

------解决方案--------------------
XmlDocument doc = new XmlDocument();
doc.load( "your.xml ")
XmlNodeList nodeList = doc.GetElementsByTagName( "users ");
string name = " ";
foreach (XmlNode node in nodeList)
{
XmlNodeList childNodeLst = node.ChildNodes;

foreach (XmlNode childNode in childNodeLst)
{
name = childNode.FirstChild.Attributes[ "name "].Value.Trim();
if (name == "你要的数据 ")
{
//..
}
}


}
------解决方案--------------------
Asp.net 2.0 XML 教程示例;
XML学习(Working with XML)

1.幻灯片课程

下载: http://www.cnblogs.com/Files/ChengKing/Working%20with%20XML(ppt).rar

2.示例代码

下载: http://www.cnblogs.com/Files/ChengKing/Working%20with%20XML(project).rar


http://blog.csdn.net/ChengKing/archive/2006/03/31/646363.aspx