Release History

Telerik UI for .NET MAUI 12.1.0

December 17, 2025

AutoComplete

NEW

• Introduced new HighlightItemFunc property to control the highlighted item after filtering.

FIXED

• [MacCatalyst] NullReferenceException is thrown when hovering the mouse over an item other than the first one.
• Setting SuggestionItemStyle overrides the default style values.
• [iOS] The control is covered by the keyboard when positioned near the bottom of the page.

Chat

NEW

• Improve control performance when attachments are used.

FIXED

• [Android] Keyboard appears on top of the input area.
• [iOS][MacCatalyst] Attached files are not displayed in the input area in .Net 10.

CheckBox

NEW

• Added the IsCheckedChanging event, which can be used to cancel changes to IsChecked.

DataGrid

NEW

• Added SortIndicatorFontSize, SortIndicatorFontFamily and SortIndicatorFontAttributes properties to the DataGridColumnHeaderAppearance.

FIXED

• NullReferenceException is thrown when PrepareTextPaintable is called during the cell measurement phase.
• NullReferenceException is thrown when CanLoadMoreItems is invoked during cell measurement.
• Group Header Aggregates are misaligned upon data changes when are next to headers.
• Updating the FooterText of a DataGridColumn while a row detail is expanded can cause jittering when scrolling through the data.
• Adding items to a collapsed group results in gaps at the bottom of the control.
• [MacCatalyst] [WinUI] Fixed an issue where the CurrentItem border appeared black when using Telerik Dark themes.

DataPager

FIXED

• DataPager_PageSizesView_LabelText localization string does not apply for Telerik themes.

MaskedEntry

FIXED

• [iOS] Cannot be focused calling the Focus method.

PdfViewer

FIXED

• [WinUI] Closing the window immediately after scrolling the PdfViewer triggers an exception.

Scheduler

FIXED

• Appointments on the same date and time are not visualized accurately in Agenda ViewDefinition.
• ScrollIntoView cannot be performed for recurring appointments in Agenda ViewDefinition.
• NullReferenceException is thrown when active definition is changed while the Agenda ViewDefinition is still loading.
• Add appointment button is missing in Agenda ViewDefinition when switching to Telerik theme.