WatchThis.Models.SlideshowModel.ParseFile C# (CSharp) Méthode

		static public SlideshowModel ParseFile(string filename)
		{
			var ssModel = new SlideshowModel();
			var doc = XDocument.Parse(File.ReadAllText(filename));

			if (!doc.Root.Name.LocalName.Equals(XmlRootName))
			{
				throw new Exception(string.Format("Wrong namespace '{0}', expected {1}", doc.Root.Name.LocalName,XmlRootName));
			}

			ssModel.Filename = filename;
			ssModel.Name = doc.Root.GetAttribute(XmlAttrName, "");
			ssModel.SlideSeconds = doc.Root.GetAttribute(XmlAttrSlideDuration, ssModel.SlideSeconds);
			ssModel.TransitionSeconds = doc.Root.GetAttribute(XmlAttrTransitionDuration, ssModel.TransitionSeconds);
            ssModel.FindAPhotoHost = doc.Root.GetAttribute(XmlAttrFindAPhotoHost, ssModel.FindAPhotoHost);

			foreach (var a in doc.Root.Attributes())
			{
				if (!expectedAttributes.Contains(a.Name.LocalName))
				{
					throw new Exception(string.Format("Unexpected attribute: {0}", a.Name.LocalName));
				}
			}

			foreach (var f in doc.Descendants("folder"))
			{
				ssModel.FolderList.Add(FolderModel.FromElement(f));
			}
            foreach (var s in doc.Descendants("search"))
            {
                ssModel.Search = s.GetAttribute("query", null);
            }
            if (ssModel.FolderList.Count < 1 && ssModel.Search == null)
			{
				throw new Exception("Missing either 'folder' or 'search' tag");
			}

			foreach (var e in doc.Root.Elements())
			{
				if (!expectedElements.Contains(e.Name.LocalName))
				{
					throw new Exception(string.Format("Unexpected element: {0}", e.Name.LocalName));
				}
			}

			return ssModel;
		}