Loading an XML file in your Silverlight project into memory
Version : Silverlight 2 Beta 2
Reading an XML file in an XAP package can easily be done with the help of a helper class like so:
1: public static class XmlHelper
2: {3: public static XElement LoadDocument(string fileName)
4: {5: //No longer required in Silverlight 2 since
6: //XmlXapResolver has been added as the default resolver for XmlReader
7: //ref: http://msdn.microsoft.com/en-us/library/cc189007(vs.95).aspx
8: //XmlReaderSettings settings = new XmlReaderSettings();
9: //settings.XmlResolver = new XmlXapResolver();
10: //XmlReader reader = XmlReader.Create(fileName, settings);
11: 12: XmlReader reader = XmlReader.Create(fileName); 13: XElement element = XElement.Load(reader);14: return element;
15: } 16: }Once you have the XElement object, you are free to manipulate it with LINQ to XML as shown below:
1: public static List<Slide> LoadSlides()
2: {3: XElement element = XmlHelper.LoadDocument("Slides.xml");
4: var slides = from slide in element.Descendants("Slide")
5: select new Slide {
6: Title = (string)slide.Element("Title"),
7: Text = (string)slide.Element("Text"),
8: Image = (string)slide.Element("Image"),
9: };10: return slides.ToList();
11: }The method above returns a List<Slide> where the Slide class is defined like so:
1: public class Slide
2: {3: public string Title { get; set; }
4: public string Text { get; set; }
5: public string Image { get; set; }
6: }and the contents of the XML file we are reading is:
1: <?xml version="1.0" encoding="utf-8"?>
2: <Slides> 3: <Slide> 4: <Title>Slide 1</Title> 5: <Text>Slide 1 Description</Text> 6: <Image>Slide1.jpg</Image> 7: </Slide> 8: <Slide> 9: <Title>Slide 2</Title> 10: <Text>Slide 2 Description</Text> 11: <Image>Slide2.jpg</Image> 12: </Slide> 13: </Slides>Note that the XML file should have its BuildAction set to "Content".