WinUI controls have been upgraded to Windows App SDK 2.2.0.
WinUI controls have been upgraded to Windows SDK BuildTools 10.0.28000.2270.
Telemetry
Starting with this release, Syncfusion WinUI UI Component Suite introduces telemetry (development-only) to help Syncfusion better understand product usage, feature adoption, usage trends and make better product roadmap decisions.
Telemetry is enabled by default and collects only a limited set of anonymous usage data while applications are running in a development environment. Telemetry is automatically disabled in production environments, and no telemetry is collected from deployed production applications or end users.
Since telemetry has been added as a dependency to all the controls, it is mandatory to include the telemetry assembly in your project whenever you use any of the control assemblies.
SfKanban
Added support for selecting and dragging multiple cards simultaneously in the Kanban control.
Fixes
SfDataGrid
Fixed an issue that caused incorrect record placement during drag-and-drop operations within the same group in the SfDataGrid.
Syncfusion Essential Studio WinUI 2026 Volume 2 (34.1.33)Jul 28, 2026
Fixes
SfDataGrid
Unexpected prefix characters are no longer added when entering values using Alt + Numeric Keypad input in SfDataGrid.
The WinUI Markdown Viewer is a UI control that converts Markdown input into a fully formatted visual representation without requiring external rendering engines or manual formatting. It provides a flexible way to display rich Markdown content within WinUI applications to present documentation, release notes, help content, and other Markdown-based information. Key features:
Markdown rendering: Converts Markdown syntax such as headings, lists, links, images, tables, code blocks, block quotes, and more into styled, readable content.
Multiple content sources: Supports loading Markdown from a string, file, or URL.
Hyperlink navigation: Supports clickable links that open external URLs or trigger in-app navigation.
Content customization: Provides styling options to customize fonts, colors, and text appearance.
When using LoadOnDemand in Day and Timeline views, setting the MinimumAppointmentDuration property will now work correctly without causing a NullReferenceException.
Provided support for localizing strings without using .resw files.
Cartesian Charts
Financial series (new) - The financial series in the Cartesian Charts make it easy to visualize stock-market price movements or any dataset that includes open, high, low, and close values, all natively in WinUI.
Candle series - A candlestick series shows stock market data using open, high, low, and close values in a single symbol. The high and low are connected by a vertical line, while the difference between the open and close is shown as a column. This format clearly highlights bullish and bearish trends and is commonly used in technical analysis to assess market trends and investor sentiment.
OHLC series - The OHLC series combines high and low ranges with open and close indicators to present trading sessions in a compact form. The high and low are shown with a vertical line, while open and close values appear as horizontal ticks. This visualization clearly represents trading activity and is useful for comparing open and close behavior across multiple stocks.
NumberBox
Support for various data types - The NumberBox control now supports handling for various numeric data types (double, decimal, byte, short, int, long, float) and accepts scientific calculations.