how to comment an xml node

Question

3.00/5 (2 votes)

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hi all,
i've one xml file as follows

XML

<a>
  <b />
  <c />
</a>

now i want to change the xml as follows

XML

<a>
 <!-- <b /> -->
 <c />
</a>

how can i move with this?
please help me

Posted 13-Dec-11 18:44pm

Jijesh Balakrishnan b

Updated 13-Dec-11 18:50pm

v5

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Abhinav S · Accepted Answer · 2011-12-13T18:48:00

Solution 1

Try

XML

<a>
  <!--<b />-->
  <c />
</a>

Open you file in notepad or any other text editor and add  on the second node.
That should be all you need.

Posted 13-Dec-11 18:48pm

Abhinav S

Updated 13-Dec-11 18:52pm

v2

Comments

Jijesh Balakrishnan b 14-Dec-11 1:05am

how can i do this by code?

Abhinav S 14-Dec-11 1:19am

http://www.ucancode.net/CPP_Library_Control_Tool/VC-XML-Read-Write-Create-Processing-XML-Document-Article--Source-Code.htm might help. Basically you need to read the xml and then write it back into the file (with your changes).

Amir Mahfoozi 14-Dec-11 2:58am

+5 for the link ;)

BrainlessLabs.com 14-Dec-11 1:17am

What parser you are using?
You basically have to fetch the node, remove it, and add a comment in the xml stream.

Jijesh Balakrishnan b 14-Dec-11 1:29am

okay..thank you

Abhinav S 14-Dec-11 3:15am

You are welcome.

Amir Mahfoozi · Accepted Answer · 2011-12-13T20:06:00

Firstly you should know that XmlDocument does't give you the position of the elements in source stream.

So you have to use Html Agility Pack :
http://htmlagilitypack.codeplex.com/wikipage?title=Examples[^]

Then you will have something like this :

C#

HtmlAgilityPack.HtmlDocument htmlDocument = new HtmlDocument();
var content =@"<a>
                      <b />
                      <c />
                    </a>";
htmlDocument.LoadHtml(content);
var desiredNode = htmlDocument.DocumentNode.SelectNodes("/a/b")[0];
content = content.Insert(desiredNode.StreamPosition + desiredNode.OuterHtml.Length, "-->");
content = content.Insert(desiredNode.StreamPosition, "<!--");

Remember to add some error checkings.

Hope it helps.