how to remove a single node from Xml

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Hi every one,

I am taking XML file as my data base. The data that I want to insert into XML file it is getting inserted.

But now I want to remove a node from that XML file. Here is my XML file content.

XML

<Cluster_list>
  <Cluster>A</Cluster>
  <Cluster>B</Cluster>
  <Cluster>C</Cluster>
</Cluster_list>

Now I want to remove the node which has the value C from that list.

I wrote code like this.

C#

XmlDocument doc = new XmlDocument();
                doc.Load(cluster_path);//Path is given globly

 XmlNode node = doc.SelectSingleNode("/Cluster_list [Cluster='"+cluster_name+"']");

node.ParentNode.RemoveChild(node);


                doc.Save(cluster_path);

Here I will give the value cluster_name=C.

The error is coming at the - doc.Save(cluster_path);
Saying - "invalid xml document the document does not have a root element it does have a root element"

I searched in internet but I didn't got proper solution. So can any body suggest any solution.

Advance Thanks
Arun

Posted 8-Dec-11 19:54pm

arunrv

Updated 8-Dec-11 20:00pm

RaisKazi

v2

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3 solutions

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Derek Henderson · Answer 1 · 2011-12-08T22:27:00

Solution 1

Switch to using XElement ... in LINQ to XML ... makes handling and manipulating XML much easier than using XmlDocument. Plenty of examples on the web.

Posted 8-Dec-11 22:27pm

Derek Henderson

Manish.Insan · Answer 2 · 2011-12-08T23:35:00

Solution 2

I have not worked so much on c# to xml but u can use this :

C#

XmlNode.RemoveChild(XmlNode);

n search about this. this will surely help you. :)

Posted 8-Dec-11 23:35pm

Manish.Insan

v2

Comments

RaviRanjanKr 9-Dec-11 5:50am

A suggestion :- Never use short text words like u instead of 'you' and n instead of 'and'.

arunrv 9-Dec-11 23:46pm

Please don't use short form of words :)

Member 16360323 · Answer 3 · 2024-09-05T11:33:00

Solution 3

XmlDocument xml = new XmlDocument();
xml.Load(cluster_path);
XmlNode userNodes = xml.SelectSingleNode("/Cluster_list[Cluster='"+cluster_name+"']");
foreach (XmlNode userNode in userNodes)
{
if (userNode.InnerText == cluster_name)
{
userNodes.RemoveChild(userNode);
}
}
xml.Save(cluster_path);
userNodes = null;
xml = null;

Posted 5-Sep-24 11:33am

Member 16360323

Updated 6-Sep-24 7:59am

v4

Comments

Dave Kreskowiak 5-Sep-24 20:05pm

XElement is easier to use and you're 13 years too late to the discussion.

Member 16360323 6-Sep-24 10:19am

It doesn't matter how much time has passed, but the solution to the problem.

Richard Deeming 9-Sep-24 4:24am

An unformatted, unexplained code-dump is never a "solution" to a question!

Also, the RemoveChild method was already mentioned in solution 2, posted back in 2011.

Stick to answering new questions where the OP still needs help, unless you have something new and interesting to add to the discussion. Resurrecting ancient questions with an unexplained code-dump, or with a solution that just repeats what has already been said, will get you banned.