how to change xml value file using c#

Question

Hi,

How can I change one value (attribute) in xml file, using C#/

Thanks,

Answer 1

http://www.developer.com/net/csharp/article.php/3489611

Answer 2

Using LINQ to xml if you are using framework 3.5:

using System.Xml.Linq;

XDocument xmlFile = XDocument.Load("books.xml");

var query = from c in xmlFile.Elements("catalog").Elements("book")

select c;

foreach (XElement book in query)

{

book.Attribute("attr1").Value = "MyNewValue";

}

xmlFile.Save("books.xml");

Answer 3

Mike; Everytime I need to modify an XML document I work it this way:

    //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);

    //xmlFile is the path of your file to be modified

I hope you find it useful