需要帮助使用 LINQ 查询复杂的 XML 以获取复杂的 xml 结构

Question

Can someone tell me how to query the below xml using LINQ to get name of the books written by John.I am completely new to linq and it would be great if you can help me on this. I tried to write some queries but it didnt work.

<Library>
<Name>Central Library</Name>
<Address>
<Place>West Fort</Place>
<Pin>0088</Pin>
</Address>
<Books>
<Book>
  <Name>Book1</Name>
   <Specifications>
     <Specification>
      <Name>status</Name>
      <value><![CDATA[available]]></value>
     </Specification>
     <Specification>
      <Name>Author</Name>
      <value><![CDATA[John]]></value>
     </Specification>
  </Specifications>
</Book>
<Book>
 <Name>Book2</Name>
  <Specifications>
   <Specification>
    <Name>status</Name>
    <value><![CDATA[Not available]]></value>
   </Specification>
   <Specification>
    <Name>Author</Name>
   <value><![CDATA[Smith]]></value>
   </Specification>
</Specifications>
</Book>
<Book>
<Name>Book3</Name>
 <Specifications>
  <Specification>
   <Name>status</Name>
   <value><![CDATA[Not available]]></value>
  </Specification>
  <Specification>
   <Name>Author</Name>
   <value><![CDATA[John]]></value>
 </Specification>
</Specifications>
</Book>
</Books>
</Library>

Answer 1

You can do it like this:

var xmlDocument = XDocument.Load("Xml filePath");

var books = xmlDocument
            .Descendants("Specification")
            .Where(x => ((string) x.Element("value")).Contains("John"))
            .Select(x => x.Parent.Parent);

But keep in mind you shouldn't ask for code.First you should do some research, read documentation & tutorials, spend some effort then if you have problems abour your attempt(s) you should come and ask for those specific problems.