伯爵XML中的特定XML节点 [英] Count specific XML Nodes within XML

问题描述

请参阅此XML：

<CMP>
    <OMP3>
        <personmenu>
            <submenuid>502</submenuid>
            <submenuid>503</submenuid>
        </personmenu>
        <accountsmenu>
            <submenuid>517</submenuid>
            <submenuid>518</submenuid>
            <submenuid>519</submenuid>
        </accountsmenu>

        <reportsmenu>
            <submenuid>522</submenuid>
            <submenuid>528</submenuid>
            <submenuid>536</submenuid>
        </reportsmenu>
    </OMP3>

    <AMP3>
        <admissionmenu>
            <submenuid>702</submenuid>
            <submenuid>703</submenuid>
        </admissionmenu>
    </AMP3>
</CMP>

---

我想从这个XML动态（C＃）获取节点的总数。
我该怎么办呢？任何样品code？

---

I want to get the total count of nodes from this xml dynamically (C#). How can I do it? Any sample code?

推荐答案

下面是计算所有 submenuid 节点在XML文档中没有加载到内存中的一个例子：

Here's an example of counting all submenuid nodes in your xml document without loading it into memory:

var nodeCount = 0;
using (var reader = XmlReader.Create("test.xml"))
{
    while (reader.Read())
    {
        if (reader.NodeType == XmlNodeType.Element && 
            reader.Name == "submenuid")
        {
            nodeCount++;
        }
    }
}
Console.WriteLine(nodeCount);

或者，如果你preFER的LINQ to XML：

Or if you prefer LINQ to XML:

var count = XDocument
    .Load("test.xml")
    .XPathSelectElements("//submenuid")
    .Count();

这篇关于伯爵XML中的特定XML节点的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！