通过XML文件排序 [英] Sorting Through XML Files

问题描述

我正在尝试运行一个程序，该程序将对特定项目的XML文档进行排序，并返回该项目。我一直在尝试使用XMLNodeList和XMLNodeItem，但没有任何运气。以下是我的XML文档的示例，
以及我试图找到的内容

< NEO>

< section name =" NeoInterface">

< entry name =" ProductVersion">" Some Value"< / entry>

< entry name =" ReleaseDate">" Some Value2"< / entry>

< entry name =" DB Path">" Some Value3"< / entry>

< ; / section>

< / NEO>

非常具体，我正在尝试查找子条目的值（除非我是误解了这个）产品版本。这是我尝试过的，并且取得了"最大的成功"。 with：

 XMLDocument doc = new XMLDocument（）; 
 
 doc.Load（" filepath\NEO.xml"）; 
 
 XmlNodeList list = doc.GetElementsByTagName（" entry"）; 
 
 for（int i = 0; i< list.Count; i ++）
 {
 Console.WriteLine（list [i] .InnerXML）; 
} 

这似乎成功地抛出了每一个"某些价值"。进入一个输出。我已经尝试将这些值（在FOR循环内）移动到一个数组中，然后移动到变量中，但我没有成功将它们分开，以便找到特定的"Product
Version"。 

有人能指出我正确的方向吗？我觉得我很接近。  

 

解决方案

为了提取产品版本，试试这个：

 XmlDocument doc = new XmlDocument（）; 
 doc.Load（" filepath\NEO.xml"）; 
 
 var neo_interface = doc.SelectSingleNode（" / NEO / section [@ name ='NeoInterface']"）; 
 string product_version = neo_interface？.SelectSingleNode（" entry [@ name ='ProductVersion']"）?. InnerText; 
 

它使用 XmlDocument 类。

I'm trying to run a program that will sort through an XML document for a specific item, and return that item. I have been experimenting using the XMLNodeList and XMLNodeItem, but aren't having any luck. Here is an example of what my XML Document looks like, and what I"m trying to find

<NEO>

<section name="NeoInterface">

<entry name="ProductVersion">"Some Value"</entry>

<entry name="ReleaseDate">"Some Value2"</entry>

<entry name="DB Path">"Some Value3"</entry>

</section>

</NEO>

Very specifically, I'm trying find the value of the child entry(unless i've misunderstood this) for Product Version. Here is what I have tried, and had the "most success" with:

XMLDocument doc = new XMLDocument();

doc.Load("filepath\NEO.xml");

XmlNodeList list = doc.GetElementsByTagName("entry");

for(int i = 0; i < list.Count; i++)
{
   Console.WriteLine(list[i].InnerXML);
}

This appears to successfully throw every "Some Value" into an output. I have tried moving these values (inside the FOR Loop) into an array, and into variables, but I have no success with breaking them apart, as to find the specific "Product Version". 

Can somebody point me in the right direction? I feel like I"m close.  

 

解决方案

In order to extract Product Version, try this:

XmlDocument doc = new XmlDocument();
doc.Load("filepath\NEO.xml");

var neo_interface = doc.SelectSingleNode( "/NEO/section[@name='NeoInterface']" );
string product_version = neo_interface?.SelectSingleNode( "entry[@name='ProductVersion']" )?.InnerText;

It uses the XmlDocument class.

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