XML Data management in .NET

Question

I learning Xml data handling in .NET. I have the following XML format.

    
        
        <         


        

Answer 1

Here's an example of adding and removing elements using LINQ to XML:

// load the XML file into an XElement
XElement xml = XElement.Load(filePath);

// add a new book
xml.Add(
    new XElement("BOOK",
        new XElement("TITLE", "book 3"),
        new XElement("AUTHOR", "author 3"),
        new XElement("PRICE", 0.1),
        new XElement("YEAR", 2012)));

// remove a book that matches the desired title     
xml.Elements("BOOK").Where(x => x.Element("TITLE").Value == "book 1").Remove();

// to edit an existing element:
xml.Elements("BOOK")
    .Single(x => x.Element("TITLE").Value == "book 2") // take a single book
    .Element("AUTHOR").Value = "new author";  // and change its author field

Basically, use whatever you want, as long as you're comfortable with the technology. LINQ to SQL seems a bit easier, in my opinion.