delete a node from xml?

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hi guys,

i have a question. i have an xml file like:

<Group>
<1>Text1</1>
<1>text2</1>
</Group>

i want delete a <1> where element is text1 .

thanks in advance

Posted 28-Sep-11 21:50pm

Member 8214635

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3 solutions

Solution 1

Hi
check this code for your requirement.

C#

XmlTextReader reader = new XmlTextReader(Server.MapPath("~/SomeFiles") + "/" + "XMLFile4.xml");
reader.WhitespaceHandling = WhitespaceHandling.None;

XmlDocument xmldoc = new XmlDocument();
xmldoc.Load(reader);
XmlNodeList xmlnodeli = xmldoc.SelectNodes("Group/1");
XmlNode  xmlnodeli1 = xmldoc.SelectSingleNode("Group");
XmlNode xn = null;
if (xmlnodeli.Count > 0)
{
      //you 've to check each and every node value if it has more than two nodes
    if (xmlnodeli[1].InnerText == "Test1")
    {
        xn = xmlnodeli[1];
    }
}
xmlnodeli1.RemoveChild(xn);
reader.Close();
xmldoc.Save(Server.MapPath("~/SomeFiles") + "/" + "XMLFile4change.xml");

I hope you understood What I did.

All the Best

Posted 28-Sep-11 22:16pm

Muralikrishna8811

Solution 3

Hi,

You can use system.Xml.Linq to perform same task in two lines as shown below:

C#

var elements = XElement.Parse("<group><g1>Text1</g1><g1>Text2</g1><g1>Text3</g1></group>").Elements();

//OR
//var elements = XElement.Load("samplefilePath").Elements();

elements.Where(ele => ele.Value == "Text1").Remove();

Posted 29-Sep-11 0:28am

Ravindra Nidhonkar

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Theingi Win · Accepted Answer · 2011-09-28T23:23:00

You should check your Xml format first.I'm not sure in XML tag can give only number or not.I will give you sample of my XML and Delete node.

XML

XML

<?xml version="1.0" encoding="utf-8"?>
<Group>
  <G1>Text1</G1>
  <G1>Text2</G1>
</Group>

Sample C# code

XmlTextReader reader = new XmlTextReader(Server.MapPath("~/XMLFile") + "/" + "Test.xml");
 reader.WhitespaceHandling = WhitespaceHandling.None;

 XmlDocument xmldoc = new XmlDocument();
 xmldoc.Load(reader);
 XmlNodeList xmlnodelist = xmldoc.SelectNodes("Group/G1");
 XmlNode xmlnode = xmldoc.SelectSingleNode("Group");
 XmlNode xn = null;
 if (xmlnodelist.Count > 0)
 {
     //you 've to check each and every node value if it has more than two nodes
     for (int i = 0; i < xmlnodelist.Count; i++)
     {
         if (xmlnodelist[i].InnerText == "Text1")
         {
             xn = xmlnodelist[1];
         }
     }

 }
 if (xn != null)
 {
     xmlnode.RemoveChild(xn);
 }
 reader.Close();
 xmldoc.Save(Server.MapPath("~/XMLFile") + "/" + "Test.xml"");