我有一个问题,需要在C#中解析我的XML文件(RSS Feed)。我只想读取“entry”条目(根父项“feed”不相关)。所有的“entry”条目几乎都一样,除了“state”部分。有些条目没有该条目。
因此,我只想读取以下内容: “entry”节点:
1. updated 2. expires 3. title 4. summary 5. state(如果存在)
有什么建议吗? 非常感谢。
在这种情况下,如果状态不存在,我就没有数据之间的关系。
因此,我只想读取以下内容: “entry”节点:
1. updated 2. expires 3. title 4. summary 5. state(如果存在)
有什么建议吗? 非常感谢。
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<updated>2011-01-01T00:00:00+0100</updated>
<link href="http://www.domain.com" rel="self"/>
<author>
<name>Mr X</name>
<email>Mr_X@domain.com</email>
</author>
<title>Some infos....</title>
<id>domain.com</id>
<entry>
<updated>2011-01-01T00:00:00Z</updated>
<expires>2011-01-02T00:00:00Z</expires>
<title>My first Title</title>
<id>First ID</id>
<link type="text/html" rel="alternate"
href="http://domain.com/firstElement"></link>
<summary>My first important summary</summary>
<rights>domain.com</rights>
<content type="xhtml">
<div xmlns="http://www.w3.org/1999/xhtml">
<div>
<img alt="second" width="32"
src="http://domain.com/firstElement.png"/>
</div>
</div>
</content>
</entry>
<entry>
<updated>2011-01-01T00:00:00Z</updated>
<expires>2011-01-02T00:00:00Z</expires>
<title>My second Title</title>
<state>active</state>
<id>Second ID</id>
<link type="text/html" rel="alternate"
href="http://domain.com/secondElement"></link>
<summary>My second important summary</summary>
<rights>domain.com</rights>
<content type="xhtml">
<div xmlns="http://www.w3.org/1999/xhtml">
<div>
<img alt="second" width="32"
src="http://domain.com/secondElement.png"/>
</div>
</div>
</content>
</entry>
</feed>{<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<updated>2011-01-01T00:00:00+0100</updated>
<link href="http://www.domain.com" rel="self"/>
<author>
<name>Mr X</name>
<email>Mr_X@domain.com</email>
</author>
<title>Some infos....</title>
<id>domain.com</id>
<entry>
<updated>2011-01-01T00:00:00Z</updated>
<expires>2011-01-02T00:00:00Z</expires>
<title>My first Title</title>
<id>First ID</id>
<link type="text/html" rel="alternate"
href="http://domain.com/firstElement"></link>
<summary>My first important summary</summary>
<rights>domain.com</rights>
<content type="xhtml">
<div xmlns="http://www.w3.org/1999/xhtml">
<div>
<img alt="second" width="32"
src="http://domain.com/firstElement.png"/>
</div>
</div>
</content>
</entry>
<entry>
<updated>2011-01-01T00:00:00Z</updated>
<expires>2011-01-02T00:00:00Z</expires>
<title>My second Title</title>
<state>active</state>
<id>Second ID</id>
<link type="text/html" rel="alternate"
href="http://domain.com/secondElement"></link>
<summary>My second important summary</summary>
<rights>domain.com</rights>
<content type="xhtml">
<div xmlns="http://www.w3.org/1999/xhtml">
<div>
<img alt="second" width="32"
src="http://domain.com/secondElement.png"/>
</div>
</div>
</content>
</entry>
</feed>
我目前的C#代码:
public void ParseXML(XmlDocument xmlFile)
{
ArrayList updated = new ArrayList();
ArrayList expires = new ArrayList();
ArrayList title = new ArrayList();
ArrayList summary = new ArrayList();
ArrayList state = new ArrayList();
ObservableCollection<TrafficInformation> trafInfo = new ObservableCollection<TrafficInformation>();
myCollection = trafInfo;
XmlNodeReader reader = new XmlNodeReader(xmlFile);
StringBuilder output = new StringBuilder();
while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
if(reader.Name == "updated")
{
updated.Add(reader.ReadString());
}
if (reader.Name == "expires")
{
expires.Add(reader.ReadString());
}
if (reader.Name == "title")
{
title.Add(reader.ReadString());
}
if (reader.Name == "summary")
{
summary.Add(reader.ReadString());
}
if (reader.Name == "state")
{
state.Add(reader.ReadString());
}
break;
}
}
}
在这种情况下,如果状态不存在,我就没有数据之间的关系。
ArrayList
- 改用List<string>
。这样,你至少拥有类型安全性。 - Oded