/// <summary>
 /// Calls when view are loaded
 /// </summary>
 public override void ViewDidLoad()
 {
     base.ViewDidLoad();
     Title = "Documents";
     PDFFile.FillFromDirectories(new string[] {
         Path.Combine(NSBundle.MainBundle.BundlePath, "Resource"),
         Environment.GetFolderPath(Environment.SpecialFolder.Personal)
     });
     TableView.Source = new DataSource(this);
 }