private void LoadSlides(StorageDirectory storageDirectory)
		{
			foreach (var sizeFolder in storageDirectory.GetLocalFolders())
			{
				var format = SlideFormatEnum.Undefined;
				switch (Path.GetFileName(sizeFolder.LocalPath))
				{
					case "4x3":
						format = SlideFormatEnum.Format4x3;
						break;
					case "16x9":
						format = SlideFormatEnum.Format16x9;
						break;
					case "3x4":
						format = SlideFormatEnum.Format3x4;
						break;
				}
				foreach (var groupFolder in sizeFolder.GetLocalFolders())
					foreach (var slideFolder in groupFolder.GetLocalFolders())
					{
						var slideMaster = new SlideMaster(slideFolder)
						{
							Group = groupFolder.Name,
							Format = format
						};
						slideMaster.Load();
						Slides.Add(slideMaster);
					}
			}
			Slides.Sort(
				(x, y) => x.Group.Equals(y.Group) ? x.Order.CompareTo(y.Order) : WinAPIHelper.StrCmpLogicalW(x.Group, y.Group));
		}