怎么读取XML指定节点下的值？

[hanwuji502]

<Customers>
<User name="aaa" age="21">
<Address>
Shanghai
</Address>
<Technology>
C#
</Technology>
</User>
<User name="bbb" age="22">
<Address>
Zhejiang
</Address>
<Technology>
javascript
</Technology>
</User>
<User name="ccc" age="23">
<Address>
Zhejiang
</Address>
<Technology>
Delphi
</Technology>
</User>
</Customers>

请问，我如果要获取 name="bbb" 的节点下面的 Address节点的值zhejiang，C#应该怎么写呢？

[a82344626]

System.Xml.XmlNode xn = xd.SelectSingleNode("User/[@name='ccc']/Address");
if (xn != null)
return xn.Attributes["Source"].Value;

[sprc_lcl]

        string xmlStr = "....";
        XmlDocument xd = new XmlDocument();
        xd.LoadXml(xmlStr);
        XmlNodeList xnlUser = xd.SelectNodes("Customers/User");
        string bAddress = "";
        foreach(XmlNode xnUser in xnlUser)
        {
            if(xnUser.Attributes["name"].Value == "bbb")
            {
                bAddress = xnUser.SelectSingleNode("Address").InnerText;
                break;
            }
        }

[空间数据研究所]

[Quote=引用 1 楼 a82344626 的回复:]
System.Xml.XmlNode xn = xd.SelectSingleNode("User/[@name='ccc']/Address");
if (xn != null)
return xn.Attributes["Source"].Value;
[/Quote]
正解

[q107770540]

void Main()
{
	   string xml = @"<Customers>
							  <User name=""aaa"" age=""21"">
								<Address>
								   Shanghai
								</Address>
								<Technology>
								   C#
								</Technology>
							  </User>
							  <User name=""bbb"" age=""22"">
								<Address>
								   Zhejiang
								</Address>
								<Technology>
								   javascript
								</Technology>
							  </User>
							  <User name=""ccc"" age=""23"">
								<Address>
								   Zhejiang
								</Address>
								<Technology>
								   Delphi
								</Technology>
							  </User>
							</Customers>";
			XElement xmlPage = XElement.Parse(xml);
			var q = from x in xmlPage.Descendants("User")
					where x.Attribute("name").Value == "bbb"
					select x.Element("Address").Value;
					q.ToList().ForEach(l=>Console.WriteLine(l));
}

/*
 Zhejiang
*/

[PxxxP]

            string xml = @"<Customers>
  <User name=""aaa"" age=""21"">
  <Address>
  Shanghai
  </Address>
  <Technology>
  C#
  </Technology>
  </User>
  <User name=""bbb"" age=""22"">
  <Address>
  Zhejiang
  </Address>
  <Technology>
  javascript
  </Technology>
  </User>
  <User name=""ccc"" age=""23"">
  <Address>
  Zhejiang
  </Address>
  <Technology>
  Delphi
  </Technology>
  </User>
</Customers>";


            XDocument Doc = XDocument.Parse(xml);
            var query = Doc.Descendants("User").Where(x => x.Attribute("name").Value == "bbb").Select(x => x.Element("Address").Value);
            foreach (var v in query)
            {
                Console.WriteLine(v.ToString());

[cdglynn]

序列化

[龍月]

可以根据xml path 来直接获取 此消息通过 【CSDN论坛 Winform测试版】 回复！龙月.NET的博客