Update value in xml file

Question

I have a xml-file:

  
    
    
    &         


        

Answer 1

XElement t = XElement.Load("filePath");
t.Element("level").Element("node1").Value = "";
t.Element("level").Element("node2").Value = "";
t.Element("level").Element("node3").Value = "";
t.Save("filePath");

Answer 2

Here you go:

XmlDocument xmldoc = new XmlDocument();
xmldoc.LoadXml(@"
    <root>
        <level>
            <node1 />
            <node2 />
            <node3 />
        </level>
    </root>");
XmlElement node1 = xmldoc.SelectSingleNode("/root/level/node1") as XmlElement;
if (node1 != null)
{
    node1.InnerText = "something"; // if you want a text
    node1.SetAttribute("attr", "value"); // if you want an attribute
    node1.AppendChild(xmldoc.CreateElement("subnode1")); // if you want a subnode
}

Answer 3

Use AppendChild method to inser a child inside a node.

yournode.AppendChild(ChildNode);

link text

Answer 4

//Here is the variable with which you assign a new value to the attribute
    string newValue = string.Empty 
    XmlDocument xmlDoc = new XmlDocument();

    xmlDoc.Load(xmlFile);

    XmlNode node = xmlDoc.SelectSingleNode("Root/Node/Element");
    node.Attributes[0].Value = newValue;

    xmlDoc.Save(xmlFile);

Credit goes to Padrino

How to change XML Attribute