static HeaderToImageConverter() { Instance = new HeaderToImageConverter(); Uri uri; try { uri = new Uri("pack://application:,,,/GUI/Images/diskdrive.png"); DriveImage = new BitmapImage(uri); } catch { DriveImage = DefaultImage; } try { uri = new Uri("pack://application:,,,/GUI/Images/folder.png"); FolderImage = new BitmapImage(uri); } catch { FolderImage = DefaultImage; } }