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Telerik UI for Winforms

Release History

Telerik UI for WinForms 2025.1.211 (2025 Q1)

February 12, 2025

What's new

NEW
  • RadGridView - Native .NET DateOnly and TimeOnly support with dedicated data columns.
  • Extended UI Automation support.
Breaking Changes
  • Starting with 2025 Q1, all users of the Telerik and Kendo UI components and tools, will need to apply a valid license key file to both new and existing projects. For details, see our Licensing Documentation.
  • Document Processing Libraries: Remediated (CVE-2025-0332).

Common

NEW
  • Upgraded WiX version from 3.14.0 to 5.0.2 of Windows installer (MSI).
  • Integrated "Download License Key" functionality in Visual Studio Extension.
CHANGED
  • CHM and Help3 offline documentation resources will be discontinued, starting from 2025 Q2.
  • With 2025 Q2 release the .NET 6 distribution will be discontinued, following the Microsoft's End of Support for .NET 6.
  • In 2025 Q2, the classes inside the Telerik.WinControls.Zip and Telerik.WinForms.Spreadsheet.Zip namespaces will be removed from the Telerik.WinControls and Telerik.WinControls.RadSpreadsheet assemblies. Please transition to System.IO.Compression or Telerik Document Processing libraries for continued Zip functionality.
Dependencies
  • Telerik Document Processing Library (DPL) version is updated to 2025.1.205.

RadBarcodeView

FIXED
  • The UPCE symbology is not validated correctly.

RadBindingNavigator

FIXED
  • Images on the buttons are not scaled properly on systems with a high DPI.

RadButton

NEW
  • Implement UI Automation.

RadCalendar

FIXED
  • Visual selection highlight remains on a cell when clicking and holding on one cell, then releasing on a different cell.

RadCheckBox

NEW
  • Implement UI Automation.

RadControl

FIXED
  • Remove the ComVisible=True attribute from the AccessibleObjects in NetCore.

RadDropDownList

FIXED
  • Auto complete items overlap in VisualStudio2022 theme.
  • The control is focused when it is added runtime on HDPI monitor.

RadGridView

NEW
  • Native .NET DateOnly and TimeOnly support with dedicated data columns.
FIXED
  • Error occurs when setting the ShowSelectColumn property at design time.
  • Filtering is not working, when UseCheckboxRowSelectionOnly=true.
  • BestFitColumns does not immediately update the columns size.
  • Merge cells are mispositioned when the user scrolls horizontally using the ScrollBar arrow buttons.
  • An exception is thrown when a null value is set to the bound property.
  • Missing icons in ExpressionEditor functions section.
  • Grouping by date column leads to an exception in self-reference hierarchy when data records contain dates that differ only by milliseconds.
  • Add() method allows adding Null values.
  • Merge cells are offset when there are pin columns in the ControlDefault theme.

RadLabel

NEW
  • Implement UI Automation.

RadMap

FIXED
  • Updated legend items panel background color in Windows11CompactDark, Windows11Dark and Windows11HighContrast themes.

RadNavigationView

FIXED
  • The view scrolls to an incorrect position when the user selects the last SubPage.
  • Error occurs when removing a sub page and navigation view is collapsed.
  • RadPageViewPage.Title property does not work.

RadPageView

FIXED
  • Error in NavigationViewItemUIAutomationProvider when removing a page.
  • Provide option to access and customize the dropdown list that holds the overflowed pages.

RadPdfViewer

FIXED
  • Wrong colors are displayed because alpha graphic state colors are imported incorrectly.
  • Invalid annotation position leads to missing content.

RadPopupEditor

FIXED
  • The popup does not always close when click outside the control inside the Fluent theme.

RadRibbonBar

FIXED
  • RadImageButtonElement ShowBorder property is not serialized.

RadRichTextEditor

NEW
  • Expose API that allows you to change the mouse selection handler and override its methods.
FIXED
  • One is unable to insert SDT (content controls) right before or right after another content control.
  • Custom list styles are not imported from HTML.
  • An UnverifiedXamlException is raised when importing a XAML document that contains a DocumentPartProperties instance.
  • Selecting a numeric/bullet list and clicking the button does not mark all items as numeric/bullet.
  • OpenedFileName property is reset when a document is opened and the OpenFileDialog is canceled.

RadScheduler

FIXED
  • The Navigator TimeZone dropdown list does not change the time zone of the control.
  • AppointmentExceptionOfRecurrenceIcon is not embedded in .NET Core assemblies.

RadSpreadsheet

NEW
  • Add possibility to move to the first cell when using Ctrl+Home key combination.
FIXED
  • Error when creating Scatter charts.

RadToastNotification

NEW
  • Update the version of System.Drawing.Common in the .NET NuGet package to 8.0.11.

RadToggleButton

NEW
  • Implement UI Automation.

RadToggleSwitch

NEW
  • Implement UI Automation.
FIXED
  • Text is not shown in Windows11 themes.

RadVirtualKeyboard

FIXED
  • Clicking on a key closes the popup with suggestions of the RadDropDownList control.

TPF

NEW
  • New DateOnly & TimeOnly editors.

Zip

FIXED
  • File on disk can be rewritten through a malicious archive.

Infrastructure

FIXED
  • Missing Document Processing assemblies inside the zip archive part of the Preview releases.

New features & Roadmap

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