Question

In my code:

XmlDocument document = new XmlDocument();
XmlElement book = document.CreateElement("book");
document.AppendChild(book);

... // create and add a bunch of nodes

document.Save(filename);

I want to modify my code so that the string <?xml version="1.0"?> is saved at the top of filename. What is the simplest way to do this?

Answer 1

Without manipulating the document, you can provide the Save method with an XmlWriter, which writes the XML declaration by default:

    using (XmlWriter xw = XmlWriter.Create(filename))
    {
        document.Save(xw);
    }