Recently Updated
Unplanned
Last Updated:
13 Jan 2026 11:14
by Martin Ivanov
Created by:
Martin Ivanov
Comments:
0
Category:
FileDialogs
Type:
Feature Request
Add an option to disable the file system watcher used by the RadFileDialogs.
Unplanned
Last Updated:
13 Jan 2026 10:08
by Stenly
Created by:
Stenly
Comments:
0
Category:
PDFViewer
Type:
Feature Request
Introduce events similar to the PageRenderStarted and PageRenderCompleted ones that the Telerik UI for WinForms RadPdfViewer provides:
WinForms PdfViewer How-To Handle Rendering Events - Telerik UI for WinForms
In Development
Last Updated:
12 Jan 2026 08:53
by ADMIN
Created by:
Swapnil
Comments:
0
Category:
RichTextBox
Type:
Feature Request
Unify the keyboard selection in tables with the arrow keys to match MS Word.
Unplanned
Last Updated:
09 Jan 2026 16:01
by Stenly
Created by:
Stenly
Comments:
0
Category:
Spreadsheet
Type:
Feature Request
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.
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
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
Created by:
Martin Ivanov
Comments:
0
Category:
DateTimePicker
Type:
Feature Request
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.
In Development
Last Updated:
06 Jan 2026 09:06
by ADMIN
ADMIN
Created by:
Tina Stancheva
Comments:
0
Category:
UI for WPF
Type:
Feature Request
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.
Unplanned
Last Updated:
24 Dec 2025 08:36
by Martin Ivanov
Created by:
Martin Ivanov
Comments:
0
Category:
RichTextBox
Type:
Feature Request
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
Created by:
Martin Ivanov
Comments:
0
Category:
Expander
Type:
Feature Request
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
Created by:
Martin Ivanov
Comments:
0
Category:
RichTextBox
Type:
Feature Request
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
Created by:
Stenly
Comments:
5
Category:
Buttons
Type:
Feature Request
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
Created by:
Stenly
Comments:
0
Category:
Buttons
Type:
Feature Request
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.
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
Created by:
EUNKYUNG
Comments:
0
Category:
Spreadsheet
Type:
Feature Request
Multiple rows are not selected in FindAll (Ctrl+F) on the Spreadsheet.
Duplicated
Last Updated:
08 Dec 2025 08:43
by Atanas2
Created by:
Avrohom
Comments:
0
Category:
UI for WPF
Type:
Feature Request
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
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
Created by:
Martin Ivanov
Comments:
1
Category:
ChartView
Type:
Feature Request
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).
Completed
Last Updated:
11 Nov 2025 08:11
by ADMIN
Release Telerik UI for WPF 2025.4.1111 (2025 Q4)
Created by:
Martin Ivanov
Comments:
0
Category:
VirtualKeyboard
Type:
Feature Request
RadVirtualKeyboard starts a new Task which constantly checks the system culture and synchronizes this with the culture of the control. When the control gets unloaded or when the SynchronizeCultureWithSystem property is set to False, the Task's thread is stopped using the Cancel method of the associated CancellationToken, along with the ThrowIfCancellationRequested method.
This throws an OperationCanceledException, which is the expected behavior to signal that the thread was canceled. However, the exception is marked as unobserved, which throws the TaskScheduler.UnobservedTaskException static event. This doesn't cause problems in the control or the host application, but the RadVirtualKeyboard can handled it better, so the exception is not marked as unobserved.
This throws an OperationCanceledException, which is the expected behavior to signal that the thread was canceled. However, the exception is marked as unobserved, which throws the TaskScheduler.UnobservedTaskException static event. This doesn't cause problems in the control or the host application, but the RadVirtualKeyboard can handled it better, so the exception is not marked as unobserved.
Completed
Last Updated:
11 Nov 2025 08:11
by ADMIN
Release Telerik UI for WPF 2025.4.1111 (2025 Q4)
Created by:
Stenly
Comments:
0
Category:
MultiColumnComboBox
Type:
Feature Request
Currently, when an item is selected and the RadWatermarkTextBox (search box) is focused, pressing the Back or Delete key will remove the selected item. This logic is encapsulated, and it cannot be altered. We could add an option to control this behavior.
Completed
Last Updated:
11 Nov 2025 08:11
by ADMIN
Release Telerik UI for WPF 2025.4.1111 (2025 Q4)
Created by:
Martin Ivanov
Comments:
0
Category:
Menu
Type:
Feature Request
Currently, the icon of RadMenuItem is left aligned to the content. Add a property that allows to change the icon position of each RadMenuItem - left or right.
Completed
Last Updated:
11 Nov 2025 08:11
by ADMIN
Release Telerik UI for WPF 2025.4.1111 (2025 Q4)
Created by:
Martin Ivanov
Comments:
0
Category:
ComboBox
Type:
Feature Request
Currently, the drop down of RadComboBox contains only the RadComboBoxItems and the Clear Selection button. Add new content presenter that allows you to include extra visuals, like buttons or text.
The feature is similar to the AdditionalContent of RadTabControl.