In Development
Last Updated: 23 Jul 2021 13:28 by ADMIN
The popup of a notify icon does not appear when the application is built against .Net Core or .Net 5.
Last Updated: 23 Jul 2021 12:14 by ADMIN
The sort order of the aggregated values is wrong when the sorted field contains null values. To reproduce this the null values should be allowed by setting the IgnoreNullValues property of the associated PropertyAggregateDescription object to False.
Last Updated: 23 Jul 2021 09:38 by ADMIN
When a big image is pasted from Word with defined Square wrapping and the layout mode is Flow, then the scrollbar of the page is not visible and the image is not auto-stretched.
Pending Review
Last Updated: 22 Jul 2021 12:32 by Franz

When placing controls in the CellTemplate/CellEditTemplate in the RadMultiColumnComboBox`s dropdown`s GridView some do not receive/accept the mouse input correctly.

In the newest version (2021.2.615) the dropdown of a RadDatePicker does not open. A RadButton works fine and a RadComboBox open and can select an item via mouse click.

In a previous version (2021.1.325) the RadComboBox also does not work, this seems to be fixed already.


I have attached a sample project demonstrating the behavio:

1) start the project

2) open the dropdown of the RadMultiColumnComboBox

3) click on the RadDatePicker`s calender icon button. => the calender view does not open

The very same DataTemplate is applied obove the RadMultiColumnComboBox to illustrate the proper behavior in contrast.


The behavior is visually demonstrated in the .gif (1.gif and 2.gif) I have attached.

Last Updated: 21 Jul 2021 12:03 by ADMIN
Release LIB 2021.2.726 (26 Jul 2021)
When a cell that has a defined name is selected, the associated name should appear in the name box. However, when the cell is part of a merged range, its row and column name (A1) is shown instead of the defined name.
Last Updated: 20 Jul 2021 15:11 by Daniel
While scrolling a document containing many Link annotations there is a decrease in the performance.
Last Updated: 20 Jul 2021 09:42 by ADMIN
Output error in VS:

System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='Telerik.Windows.Controls.RadRibbonView', AncestorLevel='1''. BindingExpression:Path=IsHostedInRibbonWindow; DataItem=null; target element is 'WindowTitle' (Name='WindowTitle'); target property is 'NoTarget' (type 'Object')
Last Updated: 16 Jul 2021 14:14 by ADMIN

Hundreds of Connections with ConnectionsBridges turned on in diagram. One on top of the others.

StackOverflowException between updating the Connections' Start/End points.

Won't Fix
Last Updated: 14 Jul 2021 14:22 by ADMIN
The designer of VS crashes with a "Key cannot be null" when custom markup extension is used in Style Setter. This reproduces in the sample app attached in the blog ( on the TextBlock of the RabRadioButton HeadingStyle (snapshot attached) if you open MainWindow in Designer. Runtime everything works as expected.
Last Updated: 13 Jul 2021 13:17 by ADMIN
Field values are lost on import-export using the PdfFormatProvider.
Last Updated: 08 Jul 2021 11:05 by Andrii
Unicode hex character code "​" is not rendered correctly 
Last Updated: 07 Jul 2021 10:39 by ADMIN
Created by: Fred
Comments: 0
Category: Spreadsheet
Type: Bug Report
Changing the active sheet in code removes the frozen panes.
Last Updated: 02 Jul 2021 10:05 by Emin Sadigov
A NullReferenceException is thrown when a new picture is inserted in a document with enabled tracked changes. Sometimes it might take two or three images to be inserted for the exception to occur once the document is open. The original document should contain image >> text >> image >> text.
Last Updated: 01 Jul 2021 14:18 by ADMIN
Release LIB 2021.2.705 (5 Jul 2021)

Hello Support,


I have some hidden panes (see attachement). The Problem is that when I try to reorder and save the layout and reload it, the panes are not ordered as wished.


I there a way to provide it?


Best regards,

Frédéric Le Blay.

Last Updated: 01 Jul 2021 14:16 by ADMIN
Release LIB 2021.2.705 (05 Jul 2021)
 Memory leak when loading a new document more than 20 times. The issue is introduced in version 2021.2.511.
Last Updated: 01 Jul 2021 14:15 by ADMIN
Release LIB 2021.2.705 (5 Jul 2021)
When one presses the Defaults button on the webcam's settings dialog the value of the property is restored to its default value. If, however, the property was initially set to control its value automatically this setting is not restored.
Last Updated: 01 Jul 2021 07:24 by ADMIN
Release LIB 2021.2.531 (31/05/2021)
Run-time modifications on RadDocument may cause application freeze. It seems that the issue is caused by a deadlock in caret time logic.
Last Updated: 01 Jul 2021 06:12 by ADMIN
Release LIB 2021.2.705 (5 Jul 2021)
In this case, all columns have fixed width. Resizing one of the right frozen columns is not working as expected.
Last Updated: 30 Jun 2021 08:37 by ADMIN
Shapes inside a:cxnSpLocks elements are imported wrongly and cause NullReferenceException in Telerik.Windows.Documents.dll while laying out them.
Last Updated: 30 Jun 2021 08:31 by ADMIN
Created by: Stefan
Comments: 0
Category: RichTextBox
Type: Bug Report
When the 'NoFill' option is selected for the fill of a shape, it should be rendered. However, the shape is visualized in RadRichTextBox with white fill.
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