wpf c# GetElementsByTagName 然后读取内部标签值如何
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时间：2020-09-13 06:37:54 来源:igfitidea点击:
c# GetElementsByTagName then read the inner tags values how
提问by MonsterMMORPG
this below is example xml
下面是示例 xml
<DOC>
<DOCNO>WSJ870323-0180</DOCNO>
<HL>Italy's Commercial Vehicle Sales</HL>
<DD>03/23/87</DD>
<DATELINE>TURIN, Italy</DATELINE>
<TEXT>Commercial-vehicle sales in Italy rose 11.4% in February from a year earlier, to 8,848 units, according to provisional figures from the Italian Association of Auto Makers.</TEXT>
</DOC>
<DOC>
<DOCNO>WSJ870323-0180</DOCNO>
<HL>Italy's Commercial Vehicle Sales</HL>
<DD>03/23/87</DD>
<DATELINE>TURIN, Italy</DATELINE>
<TEXT>Commercial-vehicle sales in Italy rose 11.4% in February from a year earlier, to 8,848 units, according to provisional figures from the Italian Association of Auto Makers.</TEXT>
</DOC>
and this below code is not working why ?
下面的代码不起作用，为什么？
System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
doc.Load("docs.xml");
XmlNodeList elemList = doc.GetElementsByTagName("DOC");
for (int i = 0; i < elemList.Count; i++)
{
string docno = elemList[i].Attributes["DOCNO"].ToString();
}
C# 4.0 wpf
C# 4.0 wpf
回答by Mir
Use this code, assuming you have a valid root:
使用此代码，假设您有一个有效的根：
XmlNodeList elemList = doc.GetElementsByTagName("DOC");
for (int i = 0; i < elemList.Count; i++)
{
var elements = elemList[i].SelectNodes("DOCNO");
if (elements == null || elements.Count == 0) continue;
var firstElement = elements.Item(0);
var docno = firstElement.InnerText;
}
回答by L.B
Using Linq To Xml to parse Xml is much more easier. For example,
使用 Linq To Xml 解析 Xml 要容易得多。例如，
var xDoc = XDocument.Load("docs.xml");
var docs = xDoc.Descendants("DOC")
.Select(x => new{
DocNo = x.Element("DOCNO").Value,
Text = x.Element("TEXT").Value
})
.ToList();
