remove xml node

Question

My xml file is like this:

 

<root>
<files>
<filesource uploadName="20180131T083441_638_Test.doc" originalName="Test.doc">c:\uploadDir\20180131T083441_638_Test.doc</filesource>
<filesource uploadName="20180131T083441_638_Test1.doc" originalName="Test1.doc">c:\uploadDir\20180131T083441_638_Test1.doc</filesource>
<filesource uploadName="20180131T083441_638_Test2.doc" originalName="Test2.doc">c:\uploadDir\20180131T083441_638_Test2.doc</filesource>
</files>
</root>

 

in C#:

 

XmlNode filesNodes = xmlFile.findNode("/root/files"); //Here fileNodes has all 3 filessources.


List<string> filenames = new List<string>(); // variable
filesname.add("c:\uploadDir\20180131T083441_638_Test.doc")

filesname.add("c:\uploadDir\20180131T083441_638_Test1.doc")

 

whatever variable-filenames has I want to keep it in xmlfile and rest I want to delete it  from xmlfile.