1: public string ID { get; set; }

   2: public string Title { get; set; }

   3: public string Speaker { get; set; }

   4: public Uri WMVHighUri { get; set; }

   1: StringBuilder _errors = new StringBuilder();

   2: private string _destinationPath = string.Empty;

   3:  

   4: private const string FILENAME_FORMATSTRING = "{0}\\{1}_{2}.wmv";

   5: private const string DATA_FILE_URI = "http://www.franksworld.com/Downloads/PDC09Sessions.xml";

   6:  

   7:  

   8: public Window1()

   9: {

  10:     InitializeComponent();

  11: }

  12:  

  13: private void Window_Loaded(object sender, RoutedEventArgs e)

  14: {

  15:     this._destinationPath = PickDownloadDirectory();

  16:  

  17:     if (this._destinationPath == null)

  18:     {

  19:         Application.Current.Shutdown();

  20:     }

  21:  

  22:  

  23: }

  24:  

  25:  

  26: private void btnStart_Click(object sender, RoutedEventArgs e)

  27: {

  28:     this.lblStatus.Content = "Downloading Data File";

  29:  

  30:     XDocument dataFile = XDocument.Load(DATA_FILE_URI);

  31:  

  32:     var sessionNodes =  dataFile.Descendants("session");

  33:  

  34:  

  35:     DownLoadFiles(sessionNodes);

  36:  

  37:  

  38:  

  39: }

  40:  

  41:  

  42: private string PickDownloadDirectory()

  43: {

  44:  

  45:     string returnDirectory = null;

  46:  

  47:  

  48:     Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();

  49:     dlg.FileName = "";

  50:     dlg.DefaultExt = ".*";

  51:     dlg.Filter = "All documents (*.*)|*.*";

  52:  

  53:     // Show open file dialog box

  54:     Nullable<bool> result = dlg.ShowDialog();

  55:  

  56:     // Process open file dialog box results

  57:     if (result == true)

  58:     {

  59:         // Open document

  60:         string filename = dlg.FileName;

  61:  

  62:  

  63:         returnDirectory = System.IO.Path.GetDirectoryName(filename);

  64:  

  65:  

  66:     }

  67:  

  68:     return returnDirectory;

  69:  

  70: }

  71:  

  72:  

  73: private void DownLoadFiles(IEnumerable<XElement> sessionNodes)

  74: {

  75:     var sessionList = from session in sessionNodes

  76:             select new Session

  77:             {

  78:                 SessionId = (string)session.Element("code"),

  79:                 WMVHigh = GetUri( session.Descendants("resources") , "WMVHigh" ),

  80:                 Name = GetSessionName(session)

  81:             };

  82:  

  83:     sessionList.ToList().ForEach(x => DownLoadFile(x));

  84:  

  85:  

  86:  

  87:     MessageBox.Show(_errors.ToString());

  88:  

  89:  

  90:  

  91:  

  92:  

  93:  

  94: }

  95:  

  96: private string GetSessionName(XElement session)

  97: {

  98:  

  99:     // THIS is *UGLY* LINQ code. I need to fix

 100:     var resources = session.Descendants("resources");

 101:  

 102:     var webResource = resources.Where(x => x.Attribute("ContentType").Value == "Web");

 103:  

 104:     string name = string.Empty;

 105:  

 106:     webResource.ToList().ForEach(x => name = x.Value);

 107:  

 108:     return name;

 109:  

 110: }

 111:  

 112: private void DownLoadFile(Session session)

 113: {

 114:  

 115:     try

 116:     {

 117:         WebClient wc = new WebClient();

 118:  

 119:         string destinationFileName = string.Format(FILENAME_FORMATSTRING, _destinationPath, session.SessionId, session.Name);

 120:  

 121:         if (!File.Exists(destinationFileName))

 122:         {

 123:             this.lblStatus.Content = "Copying " + destinationFileName;

 124:             wc.DownloadFile(session.WMVHigh, destinationFileName);

 125:         }

 126:     }

 127:     catch (Exception ex)

 128:     {

 129:  

 130:         _errors.AppendLine("session: " + session.SessionId + ": error: " +  ex.Message);

 131:     }

 132: }

 133:  

 134: private string GetUri(IEnumerable<XElement> iEnumerable, string p)

 135: {

 136:  

 137:     var wmvnode = iEnumerable.Where(node => node.Attribute("ContentType").Value == p);

 138:  

 139:     return wmvnode.Attributes("uri").First().Value;

 140:  

 141: }