CODEWITHSUNDEEP
c#.netxml
GANI
GANI

Reputation: 2049

How to add root tag to the string xml

            XDocument doc = XDocument.Parse(_data)
           XElement root = new XElement("student");
           doc.Element("marks").Add(root);
             doc.Save(_data)

the _data is the deserialized string xml and student is the root tag want to add doc.save throws the error.How to save the root tag ?

the string xml

             <marks>
           <name>Martin</name> 
           <date>3/24/2012</date> 
           <field>Percent</name> 
           <new>33.3</new> 
           <old>10</old> 
            </marks>

this is the string xml before root tag is added, once it is added it should look like after the root tag is added it should look like

             <student>
            <marks>
           <name>Martin</name> 
           <date>3/24/2012</date> 
           <field>Percent</name> 
           <new>33.3</new> 
           <old>10</old> 
            </marks> 
            </student>

Upvotes: 0

Views: 5858

Answers (2)

Jakub Januszkiewicz
Jakub Januszkiewicz

Reputation: 4418

How about:

var doc = new XDocument();
var root = new XElement("student");
var innerXml = XElement.Parse(_data);
root.Add(innerXml);
doc.Add(root);
_data = doc.ToString();

or alternatively

var doc = new XElement(
    new XElement("student",
        XElement.Parse(_data)
    )
);
_data = doc.ToString();

or a one-liner:

_data = new XElement(new XElement("student", XElement.Parse(_data))).ToString();

Upvotes: 3

Henk Holterman
Henk Holterman

Reputation: 273179

XDocument.Parse(_data)

implies that _data is XML, ie "<tag> <sub /> </tag>"

doc.Save(_data)

Requires _data to be a valid filename. Like "output.xml"

Ok, seems that you need:

//doc.Save(_data)
_data = doc.ToString();

Take 3:

You need to add the existing xml to <Student>, not the other way around. 

//untested    
XElement doc = XElement.Parse(_data);  // not XDoc
XElement root = new XElement("student", doc);
//doc.Save(_data)
_data = root.ToString();

Upvotes: 4

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