Unplanned
Last Updated: 23 Jan 2026 21:23 by JJ
Created by: Piotr
Comments: 1
Category: WatermarkTextBox
Type: Feature Request
2
Add support for RadWatermarkTextBox.
Completed
Last Updated: 21 Jan 2026 12:28 by ADMIN
Release Telerik UI for WPF 2025.4.1321
 Unify the keyboard selection in tables with the arrow keys to match MS Word.
Completed
Last Updated: 21 Jan 2026 12:28 by ADMIN
Release Telerik UI for WPF 2025.4.1321
ADMIN
Created by: Tina Stancheva
Comments: 0
Category: UI for WPF
Type: Feature Request
0
When developing live (localization/resource) display language switching for SL5, the LocalizationManager should allow to update all localization strings applied through the ResourceManager. In SL5 it's not possible to listen to an attached dependency property for all dependency objects. Therefore it would help to have a way to know when the attached ResourceKey dependency property changes (and on which DependencyObject) in the LocalizationManager. 
Completed
Last Updated: 21 Jan 2026 12:28 by ADMIN
Release Telerik UI for WPF 2025.4.1321
Created by: Iva
Comments: 4
Category: RichTextBox
Type: Feature Request
6
Currently, the only customization that can be performed is using HyperlinkToolTipFormatString property of RadRichTextBox, which sets the format for all hyperlinks in the document of the control. It would be nice if it were possible to be able to set different tooltips. 
Unplanned
Last Updated: 21 Jan 2026 11:22 by Martin Ivanov
Created by: Martin Ivanov
Comments: 0
Category: PivotGrid
Type: Feature Request
2
Currently, the sorting happens only based on the corresponding property in the underlying data model. Add API that allows you to implement custom sorting logic.
Unplanned
Last Updated: 19 Jan 2026 09:15 by Stenly
Created by: Stenly
Comments: 0
Category: RichTextBox
Type: Feature Request
1
Currently, the RadRichTextBox control does not support selecting multiple images as MS Word does when the Wrap Text option is not set to In Line with Text.
Unplanned
Last Updated: 13 Jan 2026 11:14 by Martin Ivanov
Add an option to disable the file system watcher used by the RadFileDialogs.
Unplanned
Last Updated: 13 Jan 2026 10:08 by Stenly
Unplanned
Last Updated: 09 Jan 2026 16:01 by Stenly
Currently, when using the RadSpreadsheet with the RadSpreadsheetRibbon, the performance can be reduced when performing selection and edit operations in fast succession.

We could check if we could improve the performance in this scenario.
Unplanned
Last Updated: 09 Jan 2026 11:25 by ADMIN
ADMIN
Created by: Tanya
Comments: 14
Category: UI for WPF
Type: Feature Request
37
Enable the customers to create and modify .pptx (PowerPoint) files . They need processing as well as showing such documents.
Unplanned
Last Updated: 08 Jan 2026 13:56 by Martin Ivanov
Currently, on lost focus of RadDateTimePicker, the input text is validated and if it is not in the proper date-time format the text is cleared. This forces the user to write the full date-time value again when a mistake is made. Add a mechanism to allow invalid date-time texts without automatically clearing the text input field. 
Unplanned
Last Updated: 24 Dec 2025 08:36 by Martin Ivanov
Created by: Martin Ivanov
Comments: 0
Category: RichTextBox
Type: Feature Request
1
Improve the performance of the document import. Currently, large documents take a lot of time to get imported with the DocxFormatProvider, even if not assigned to the RadRichTextBox control. 
Unplanned
Last Updated: 18 Dec 2025 15:15 by Martin Ivanov
Add a property or another mechanism to disable the fade expand/collapse animation of RadExpander in the Windows11 theme.
Unplanned
Last Updated: 18 Dec 2025 10:13 by Martin Ivanov

FormatException is thrown during the import of a table coming from a docx document when the application culture is "sv-SE". This happens when the column width in the document is a floating point number (ex: 120.65). The Swedish culture uses "," as decimal separator and " " as the number group separator, which makes any invariant decimal value (like 120.65) invalid during standard parsing (ex: float.Parse("120.65")).

Stacktrace:

FormatException: The input string '4514.5' was not in the correct format.
at System.Single.Parse(String s)
Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.TableImporter.ImportTableGrid(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Parsing.Style style)  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.TableImporter.Import(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Parsing.Style parentStyle)  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.MainDocumentImporter.BuildTable(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Parsing.Style parentStyle)  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.MainDocumentImporter.BuildBody()  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.MainDocumentImporter.BuildDocument()  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.MainDocumentImporter.Import()Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxImporter.ReadXmlContentFromPackage(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxPartImporterBase importer)  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxImporter.ReadXmlContentAndRelationsFromPackage(Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxPartImporterBase importer)
Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.Import.DocxImporter.Import()  Telerik.Windows.Controls.RichTextBox.dll!Telerik.Windows.Documents.FormatProviders.OpenXml.Docx.DocxFormatProvider.Import(System.IO.Stream input) 

To work this around, switch to InvariantCulture during the import and return the original culture after that.

 var cultureCache = Thread.CurrentThread.CurrentCulture;
 Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.InvariantCulture;
 Thread.CurrentThread.CurrentUICulture = System.Globalization.CultureInfo.InvariantCulture;
 var provider= new DocxFormatProvider();
 rtb.Document = provider.Import(stream);
 Thread.CurrentThread.CurrentCulture = cultureCache;
 Thread.CurrentThread.CurrentUICulture = cultureCache;

Declined
Last Updated: 15 Dec 2025 14:00 by ADMIN
The ThumbWidth and ThumbHeight properties of the RadToggleSwitchButton are not taken into account when the mouse is over the control with the Windows 11 theme.
Unplanned
Last Updated: 15 Dec 2025 13:56 by Stenly
Currently, with the Windows 11 theme, the animation is applied via DoubleAnimationUsingKeyFrames, which sets the Width and Height properties of the element that represents the thumb of the RadToggleSwitchButton to 14px, which does not take into account the ThumbWidth/ThumbHeight properties.

We can improve the animation applied to the thumb for the mouse-over state to take into account the values of the ThumbWidth/ThumbHeight and properties.
In Development
Last Updated: 10 Dec 2025 12:35 by ADMIN
Multiple rows are not selected in FindAll (Ctrl+F) on the Spreadsheet.
Duplicated
Last Updated: 08 Dec 2025 08:43 by Atanas2

Can we have a floating Label on a RadComboBox and a RadMultiColumnComboBox, same as a WatermarkTextBox?

It is quite annoying to have on a same form a WatermarkTextBox and Combo boxes as they appearance are so different.

Unplanned
Last Updated: 02 Dec 2025 15:23 by Stenly
Created by: Stenly
Comments: 0
Category: PivotGrid
Type: Feature Request
0

For the Spanish culture, some of the localization strings are for the German culture.

The following resource keys are the ones containing wrong values:

  • PivotInlineFieldList_ValuesEmptyText
  • PivotInlineFieldList_RowsEmptyText
  • PivotInlineFieldList_ColumnsEmptyText
  • PivotInlineFieldList_FiltersEmptyText
  • Pivot_AggregateSum
  • PivotFieldList_SetSumAggregate
  • PivotFieldList_Top10Sum
  • PivotFieldList_StringFormatDescription

To work around this, you could introduce a custom LocalizationManager and override the GetStringOverride method.

More information about this suggestion can be found here.

Unplanned
Last Updated: 26 Nov 2025 17:04 by Eljay
The feature needs to cover functionality as follows: The logarithmic axis has an exponent step (1, 10, 100, 1000) and the current ticks support of the axis only plots evenly distributed ticks. Clients, however, sometimes need to display unevenly distributed ticks (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and so on).
1 2 3 4 5 6