App.Current.Dispatcher.BeginInvoke(new Action(() =>
{
     RadOpenFileDialog openFileDialog = new RadOpenFileDialog();
     openFileDialog.ShowDialog();
}));

• the address bar where you enter the directory
• the search bar at the top right corner of the window
• the main pane, where the folders and files are displayed
• the navigation treeview at the left side of the control
• the new folder button
• the layout combobox

System.ArithmeticException: Overflow or underflow in the arithmetic operation.
--- End of inner exception stack trace ---
at System.Windows.Media.Imaging.ColorConvertedBitmap.FinalizeCreation()
at System.Windows.Media.Imaging.ColorConvertedBitmap..ctor(BitmapSource source, ColorContext sourceColorContext, ColorContext destinationColorContext, PixelFormat format)
at System.Windows.Media.Imaging.BitmapSource.CreateCachedBitmap(BitmapFrame frame, BitmapSourceSafeMILHandle wicSource, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, BitmapPalette palette)
at System.Windows.Media.Imaging.BitmapFrameDecode.FinalizeCreation()
at System.Windows.Media.Imaging.BitmapFrameDecode..ctor(Int32 frameNumber, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, BitmapDecoder decoder)
at System.Windows.Media.Imaging.BitmapDecoder.SetupFrames(BitmapDecoder decoder, ReadOnlyCollection`1 frames)
at System.Windows.Media.Imaging.BitmapDecoder.get_Frames()
at System.Windows.Media.Imaging.BitmapFrame.CreateFromUriOrStream(Uri baseUri, Uri uri, Stream stream, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, RequestCachePolicy uriCachePolicy)
at System.Windows.Media.ImageSourceConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)
at System.Windows.Baml2006.TypeConverterMarkupExtension.ProvideValue(IServiceProvider serviceProvider)

System.Windows.Data Error: 26 : ItemTemplate and ItemTemplateSelector are ignored for items already of the ItemsControl's container type RadBreadcrumbBarItem