Last Updated: 10 Jul 2024 11:00 by Martin Ivanov
The context menu that opens when you right click in the file explorer (over a file or an empty area) is displayed wrong when the menu is opened on the second monitor. The context menu is offset to the left or right of the mouse, based on the monitor position. The first monitor in this context means the one where the RadFileDialog (or the ExplorerControl) was initially opened. The second monitor is the other monitor.
Last Updated: 18 Dec 2023 15:02 by Martin Ivanov

The following exception is thrown when a new file dialog is created on a separate thread and its ShowDialog method is invoked.
InvalidOperationException: "The calling thread cannot access this object because a different thread owns it."

This happens also if you define an ExplorerControl in any Window opened on another UI thread.

To work this around make sure that you use RadFileDialog and ExplorerControls only on the main UI thread. For example:

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

Last Updated: 29 May 2023 08:38 by ADMIN
Release R2 2023

ArithmeticException is thrown on RadSaveFileDialog's ShowDialog call, when the device model profile of the OS (from the Color Management menu) is set to sRGB virtual device model profile.

The profile should be set through the Change system defaults menu. This setting is accessed by opening the Color Management menu in the OS, then select the Advanced tab, then click on Change system defaults... In the newly opened dialog click Advanced again and change the Device profile to sRGB virtual device model profile.

This is actually a bug in the WPF framework that is reported here.

The important part of the exception stacktrace is the following:

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)

Won't Fix
Last Updated: 21 Apr 2023 13:54 by ADMIN
A binding error appears in the VS Output pane on startup of the RadOpenFileDialog. The error states the following:
System.Windows.Data Error: 26 : ItemTemplate and ItemTemplateSelector are ignored for items already of the ItemsControl's container type RadBreadcrumbBarItem
The error can be ignored because it doesn't break the file dialog functionalities.
Last Updated: 19 Jan 2023 14:50 by ADMIN
Applying custom dark Windows8Touch theme palette colors results to black colors (unchanged) of the save file dialog's PART_SelectedFilesAutoCompleteBox caret and the confirm save dialog content's foreground.
Last Updated: 23 Sep 2022 08:10 by ADMIN
Release LIB 2022.3.926 (26 Sep 2022)
Currently, long file names are truncated when the view is either List, Small Icons, or Tiles
Last Updated: 25 Jul 2022 09:51 by ADMIN
Release LIB 2022.2.725 (25 July 2022)
A binding error is thrown in RadOpenFolderDialog when it is shown.

 System.Windows.Data Error: 40 : BindingExpression path error: 'IsSearchActive' property not found on 'object' ''OpenFolderDialogViewModel' (HashCode=65514185)'. BindingExpression:Path=IsSearchActive; DataItem='OpenFolderDialogViewModel' (HashCode=65514185); target element is 'FileDialogSearchPane' (Name=''); target property is 'IsSearchViewActive' (type 'Boolean')
Last Updated: 22 Jul 2022 16:43 by ADMIN
Release LIB 2022.2.725 (25 July 2022)
The following output binding error is printed - System.Windows.Data Error: 26 : ItemTemplate and ItemTemplateSelector are ignored for items already of the ItemsControl's container type; Type='RadWatermarkTextBox'.
Last Updated: 14 Jun 2022 13:18 by ADMIN
Release R2 2022 SP1
When DetailsView is set from the drop-down, the Date Modified column is not updated. For example, if the dialog is opened at a specific place and we modified a file (edit, replace) from an external place (source), Date Modified does not reflect the changed date.
Last Updated: 10 Jun 2022 11:02 by ADMIN
Release LIB 2022.2.613 (13 June 2022)
Currently, the resource key's value for the Italian culture is "ANNULLA", instead of "Annulla".
Last Updated: 06 Jun 2022 08:28 by ADMIN
Release LIB 2022.2.606 (06 June 2022)
Created by: Flavio
Comments: 1
Category: FileDialogs
Type: Bug Report
The search functionality of the file dialogs does not display any results when the project targets the .NET 6 framework.
Last Updated: 17 Feb 2022 15:27 by ADMIN
Release R1 2022 SP1
Inserting a USB doesn't reflect changes in the dialogs until they are reopened.
Last Updated: 16 Feb 2022 10:50 by ADMIN
Release R1 2022 SP1
Created by: Martin Ivanov
Comments: 0
Category: FileDialogs
Type: Bug Report

Some files that can be seen in the Windows Explorer are missing from the ExplorerControl of the file dialogs. This happens because of a silent ArgumentOutOfRangeException thrown for a corrupted file that doesn't have a "Date Modified" attribute set. This breaks the loading of the following files in the directory.

Here are the exception details:

System.ArgumentOutOfRangeException: Not a valid Win32 FileTime.
Parameter name: fileTime
   at System.DateTime.FromFileTimeUtc(Int64 fileTime)
   at System.IO.FileSystemInfo.get_LastWriteTimeUtc()
   at System.IO.FileSystemInfo.get_LastWriteTime()
   at Telerik.Windows.Controls.FileDialogs.FileSystemInfoWrapper..ctor(FileSystemInfoWrapperFactoryBase factory, FileSystemInfo fileSystemInfo)
   at Telerik.Windows.Controls.FileDialogs.FileInfoWrapper..ctor(FileSystemInfoWrapperFactoryBase factory, FileInfo info)
   at Telerik.Windows.Controls.FileDialogs.FileSystemInfoWrapperFactory.TryGetConcreteFileSystemInfoWrapper(FileSystemInfo fileSystemInfo, FileSystemInfoWrapper& fileSystemInfoWrapper)
   at Telerik.Windows.Controls.FileDialogs.DirectoryInfoWrapper.LoadFiles(DirectoryInfo directoryInfo)
   at Telerik.Windows.Controls.FileDialogs.DirectoryInfoWrapper.ReloadChildren()


Last Updated: 21 Jan 2022 16:44 by ADMIN
Some network shared folders cannot be access with expanding network tree in the explorer.
Entering such shared folder in breadccrumb might result in the folling: child folders of target folder are briefly visible 
for some short period of time then breadcrumb and tree fallbacks selection to a parent folder.
Last Updated: 16 Dec 2021 06:35 by ADMIN
Release LIB 2021.3.1220 (20 Dec 2021)

An exception is thrown when the ShowNetworkLocations property is set to false.

System.ArgumentNullException: Value cannot be null. (Parameter 'value')
   at System.String.StartsWith(String value)
   at Telerik.Windows.Controls.FileDialogs.Helpers.PathHelper.CapitalizeNetworkPath(String path)
   at Telerik.Windows.Controls.FileDialogs.ExplorerControl.BringItemIntoView(DirectoryBaseWrapper itemToBring)
   at Telerik.Windows.Controls.FileDialogs.ExplorerControl.BringCurrentDirIntoView()
   at Telerik.Windows.Controls.FileDialogs.ExplorerControl.MainNavigationPaneLoaded(Object sender, RoutedEventArgs e)

Last Updated: 13 Oct 2021 14:29 by ADMIN
Release LIB 2021.3.1018 (18 Oct 2021)
When the ExplorerControl is shown in a scenario with an excel addin project, the filtering does not work. 
Last Updated: 07 Oct 2021 13:25 by ADMIN
Release LIB 2021.3.1011 (11 Oct 2021)
Performance degradation is observed while trying to open a folder in the file dialog with thousands of sub-folders/files.
Last Updated: 07 Oct 2021 08:04 by ADMIN
Release LIB 2021.3.1011 (11 Oct 2021)
Setting the InitialDirectory property of the FileDialog to a folder with a huge large number of folders/items/files inside will significantly delay the loading process.
Last Updated: 09 Aug 2021 14:48 by ADMIN
Release LIB 2021.2.809 (9 Aug 2021)
FileDialog with ExpandToCurrentDirectory set to false and a network location set as initial directory.
On Load, Breadcrumb shows only Network node but it should actually show the full path to the requested folder. Then this leads to inability to navigate upward with buttons next to breadcrumb bar.
Last Updated: 26 Apr 2021 09:48 by ADMIN
Release LIB 2021.1.426 (26/04/2021)
A COMException with error message 'Exception from HRESULT: 0x80270000' is thrown when canceling the delete operation of a locked file. The operation needs to be invoked by pressing the Delete key of the keyboard - deleting the file by using the context menu works as expected.
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