Question

The code is bellow…and I get the error at the last line : loadedData.Save(“levelNo.xml”);

And i don’t understand why as there is a method with that type of parameter in XDocument : Save(String) Serialize this XDocument to a file, overwriting an existing file, if it exists.

Errors i get:
Error 2: Argument 1: cannot convert from ‘string’ to ‘System.Xml.XmlWriter’
Error 1: The best overloaded method match for ‘System.Xml.Linq.XDocument.Save(System.Xml.XmlWriter)’ has some invalid arguments

XDocument loadedData = XDocument.Load("levelNo.xml", LoadOptions.None);
        XElement root = loadedData.Root;
        XElement asset = (XElement)root.FirstNode;
        asset.RemoveAll();
        asset.Add(new XElement("level", levelNo));
        asset.Add(new XElement("mana", player.Mana));
        asset.Add(new XElement("score", score));

        loadedData.Save("levelNo.xml");

I really need some help…I’ve been searchig for some hours for a solution…My goal is to modify the levelNo.xml file, and then rewrite it…

Answer 1

Where are you hoping to save the file to? In Windows Phone 7 you need to use isolated storage. There’s a guide to WP7 Isolated Storage which has various examples, including reading and writing XML.

Ultimately, you’ll need to open an IsolatedStorageFile, then create an IsolatedStorageFileStream, and write to that:

using (var store = IsolatedStorageFile.GetUserStoreForApplication())
{
    using (var stream = store.CreateFile("levelNo.xml"))
    {
        loadedData.Save(stream);
    }
}