使用索引器的XML元素导航，通过从父级进行索引来访问子节点. [英] XML Element Navigation using the Indexer, accessing childnodes by indexing from parents.
问题描述
我有一个嵌套的XML文档，其示例如下:
I have a nested XML document a sample of which is as follows:
<?xml version="1.0" encoding="utf-8"?>
<root>
<contact>
<adr3 />
<city>Alicante</city>
<time_in_spain>
<departed_UK>1999-09-12</departed_UK>
<residency>2010-06-21</residency>
</time_in_spain>
<oap>true</oap>
<case>
<docs_posted>2011-06-21</docs_posted>
<completion>2011-06-21</completion>
<payment_recieved_uk>
<date_received>2011-06-21</date_received>
<transfer_date>2011-06-21</transfer_date>
</payment_recieved_uk>
</case>
</contact>
</root>
我想通过索引器访问诸如<date_received></date_received>之类的子节点.我正在访问诸如< adr3>之类的Contact.ChildNodes.通过contactnode ["adr3"].InnerText的方法，但是当我尝试以下任何一种方法时都无法使用:contactnode ["date_received"].InnerText或contactnode ["//date_received"].InnerText或contactnode ["case/payment_receieved_uk/date_received].InnerText.那么，我如何才能访问这些子节点.重组数据库IS和选件，但该结构以其他方式有助于管理；我宁愿仅获取正确的限定名称或通过其他方式访问.
I want to access the childnodes such as <date_received></date_received> by means of the indexer. I am accessing Contact.ChildNodes such as <adr3> by means of contactnode["adr3"].InnerText, but it will not work when I try either of: contactnode["date_received"].InnerText or contactnode["//date_received"].InnerText or contactnode["case/payment_receieved_uk/date_received"].InnerText. How, then, can I access these child nodes. Restructuring the database IS and option but the structure helps with management in other ways; I would prefer just to get the qualified name correct or access by some other means.
推荐答案
我希望此类对您有所帮助，请尝试XmlStuff.GetXmlStuffFromPath(字符串路径)为您的Xml文件.
嗯，有一种技术可以从Xml中获取所有节点.
I hope this class will help you, try XmlStuff.GetXmlStuffFromPath( string path ) for you Xml file.
Well there is the technique to get all Nodes from the Xml.
class XmlStuff
{
public string adr3 { get; set; }
public string city { get; set; }
public string departed_UK { get; set; }
public string residency { get; set; }
public bool oap { get; set; }
public string docs_posted { get; set; }
public string completion { get; set; }
public string date_received { get; set; }
public string transfer_date { get; set; }
public static XmlStuff GetXmlStuffFromPath(string path)
{
XmlStuff xmlStuff = new XmlStuff();
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Load(path);
foreach (XmlNode xmlNode in xmlDocument.ChildNodes)
{
switch (xmlNode.Name)
{
case "root":
foreach (XmlNode rootChildNode in xmlNode.ChildNodes)
{
switch (rootChildNode.Name)
{
case "contact":
foreach (XmlNode contactChildNode in rootChildNode.ChildNodes)
{
switch (contactChildNode.Name)
{
case "adr3":
xmlStuff.adr3 = contactChildNode.InnerText;
break;
case "city":
xmlStuff.city = contactChildNode.InnerText;
break;
case "time_in_spain":
foreach (XmlNode timeInSpainChildNode in contactChildNode.ChildNodes)
{
switch (timeInSpainChildNode.Name)
{
case "departed_UK":
xmlStuff.departed_UK = timeInSpainChildNode.InnerText;
break;
case "residency":
xmlStuff.residency = timeInSpainChildNode.InnerText;
break;
default:
break;
}
}
break;
case "oap":
xmlStuff.oap = Convert.ToBoolean(contactChildNode.InnerText);
break;
case "case":
foreach (XmlNode caseChildNode in contactChildNode.ChildNodes)
{
switch (caseChildNode.Name)
{
case "docs_posted":
xmlStuff.docs_posted = caseChildNode.InnerText;
break;
case "completion":
xmlStuff.completion = caseChildNode.InnerText;
break;
case "payment_recieved_uk":
foreach (XmlNode paymentRecievedUkChildNode in caseChildNode.ChildNodes)
{
switch (paymentRecievedUkChildNode.Name)
{
case "date_received":
xmlStuff.date_received = paymentRecievedUkChildNode.InnerText;
break;
case "transfer_date":
xmlStuff.transfer_date = paymentRecievedUkChildNode.InnerText;
break;
default:
break;
}
}
break;
default:
break;
}
}
break;
default:
break;
}
}
break;
default:
break;
}
}
break;
default:
break;
}
}
return xmlStuff;
}
}
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