Last Updated: 03 Jun 2019 06:26 by ADMIN
Release LIB 2019.2.603 (06/03/2019)
When the IsHidden property of a RadPane within a ToolWindow is set to True and then to false in quick succession, the ToolWindow is not shown. 

As a workaround, you can disable the animation of the ToolWindow:
<Style TargetType="telerik:ToolWindow">
<Setter Property="telerik:AnimationManager.IsAnimationEnabled" Value="False" />

The above style need to be placed in the resources of the App.xaml in order to take effect on the ToolWindows, since they are displayed in a separated visual tree.
Last Updated: 03 Jun 2019 06:26 by ADMIN
Release LIB 2019.2.603 (06/03/2019)
 Scrolling to a not visible column, a ToolTip appears on this column which does not have a ToolTipTemplate set.
Last Updated: 31 May 2019 14:46 by ADMIN
Release LIB 2019.2.603 (6/3/2019)
A possible solution could be to expose a HostCreated event so we can get the Window and set its AllowTransparency and WindowStyle property.
Last Updated: 31 May 2019 14:43 by ADMIN
Release LIB 2019.2.603 (6/3/2019)
In multiple selection mode, the GridViewMutiColumnComboBox column does not respect its DisplayMemberPath property.
Last Updated: 30 May 2019 13:48 by ADMIN
Created by: Tanya
Comments: 2
Category: PDFViewer
Type: Feature Request
They are used by the page and the XObjects drawn on it and deal with the overlaying of the colors. These groups are described on page 556 of PdfReference 1.7. 
Under Review
Last Updated: 30 May 2019 11:18 by ADMIN
When the FixedDocumentSinglePagePresenter content control is used to visualize PDF files in custom PDF viewer implementation a raise condition can be occurred leading to NullReferenceException with the following stack trace:
at Telerik.Windows.Documents.Fixed.UI.UIElementsHelper.FillPageContentElementsInPanel(Canvas container, RadFixedPage page)
at Telerik.Windows.Documents.UI.FixedDocumentSinglePagePresenter.CreateContent(RadFixedPage page)
at Telerik.Windows.Documents.UI.FixedDocumentSinglePagePresenter.PageLoader_WorkCompleted(Object sender, WorkCompletedEventArgs e)
at Telerik.Windows.Documents.Utilities.ResourceLoader.OnWorkCompleted(WorkCompletedEventArgs args)
at Telerik.Windows.Documents.Utilities.ResourceLoader.Worker_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.AsyncOperationCompleted(Object arg)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

The exception is thrown since the current page is unloaded while the content is being parsed.
Last Updated: 30 May 2019 08:27 by ADMIN

When the window of an application that has a TabControl with Left/Right TabStripPlacement is resized, the measure of the TabStrip is incorrect and the ScrollButtons are in Disabled state. All Tabs should be visible when the window is in its normal state and should be scrollable.
Possible workaround:
Inherit RadTabControl and override

  protected override void OnScrollButtonsVisibilityChanged()
            if (this.ScrollViewer != null)
                RadDockPanel parentDock = this.ScrollViewer.Parent as RadDockPanel;
                if (parentDock != null)
                    // Dispatcher is because Measure should be called outside other Measure phase.
                    this.Dispatcher.BeginInvoke(new Action(() =>
Last Updated: 30 May 2019 06:57 by ADMIN
A black screen and disabled camera buttons are present if the control is setup by Initialize method using the following code:

var devices = RadWebCam.GetVideoCaptureDevices();
var formats = RadWebCam.GetVideoFormats(devices[0]);[0], formats[0]); 
Last Updated: 29 May 2019 13:50 by ADMIN

Hello Support,

we are using the RadDocking.LayoutChangeEnded event to store the docking layout (via RadDocking.SaveLayout) after the user has changed it.

When animations are enabled (default) everything works as expected and all groups, split containers, and panes are included when in the XML written by RadDocking.SaveLayout.

However, when disabling animations (either using AnimationManager.IsGlobalAnimationEnabled or custom styles for RadWindow and/or ToolWindow setting AnimationManager.IsAnimationEnabled to false) the RadDocking.LayoutChangeEnded event is raised too early.

The faulty behavior can be reproduced with the attached demo application as follows:

1. start the application (App.xaml includes a style for ToolWindow with animations disabled)

2. drag the pane "Solution Explorer" out of the application to create a new tool window

3. drag the "Solution Explorer" tool window onto the "Properties" pane's compass and drop it below "Properties", so that "Properties" and "Solution Explorer" are both pinned right in the application above each other

4. when inspecting the layout written to the "Output" pane you will find that the entry for the RadPane "Solution Explorer" is missing

Any additional change to the docking layout (like resizing a pane) will update the layout and show all panes again.

When enabling animations in the ToolWindow style the above steps will result in the complete layout being written to the "Output" pane.

Please let me know should you require further information for reproduction of this bug.

Best regards,


Last Updated: 29 May 2019 11:54 by ADMIN
When there is a document with wrapped cells in it, often the content of the cell is not properly displayed in RadSpreadsheet. This results in the content also being shown over the cell below.
Last Updated: 29 May 2019 07:56 by ADMIN
Created by: Nebojsa Mancic
Comments: 8
Category: UI for WPF
Type: Feature Request
I think that deploying scenario for applications and protecting dll-s are complicated. I think that better way is to use control panel. I want to send you needed informations through control panel, a and I want to provide me my version of dll-s that are protected and I can use it in my app. You build it on your own. The way you are doing it now is complicated, and can produce issues.
Last Updated: 28 May 2019 13:05 by ADMIN
The generated ImageSource is associated with the import thread, while the UI invokes layout logic, which depends on that image, on the main thread. This causes a cross thread access exception.
Last Updated: 28 May 2019 10:46 by ADMIN
When the attribute is defined but no value is set to it, the format provider cannot import the content and throws NullReferenceException.
Last Updated: 27 May 2019 20:39 by Jared
Created by: Jared
Comments: 4
Category: FileDialogs
Type: Feature Request

It would be nice to have some additional public properties and commands for ExplorerControl.  For example:

  • Boolean properties to show/hide the first two rows (containing the breadcrumbs, new folder button, layout combo box, etc.).
  • Search command or public SearchText property.
  • Cancellable OnNavigating event.
  • Navigation tree "RootDirectory" property, which would replace the top-level "This PC" node.

Thanks for your consideration!

Last Updated: 27 May 2019 11:30 by ADMIN
Add properties that control the visibility the first two rows. Those are the rows that contain the breadcrumbs, new folder button, layout combo box, etc.
Last Updated: 27 May 2019 11:25 by ADMIN
Currently, the root of the file system is "This PC". Allow setting a custom folder as a root (for example, C:\Users\mivanov\Documents) and show only its children.
Last Updated: 27 May 2019 11:18 by ADMIN
Created by: Martin Ivanov
Comments: 0
Category: FileDialogs
Type: Feature Request
Introduce a mechanism to allow executing search manually. Similar to the RadGridViewCommands.SearchByText command.
Last Updated: 26 May 2019 20:23 by Buks
Last Updated: 24 May 2019 16:37 by ADMIN
Created by: Sean
Comments: 0
Category: RichTextBox
Type: Feature Request
Implement a mechanism that allows embedding font data when exporting documents.