Added a ChatControl, a XAML-definable chat UI for showing a conversation between a user and an assistant.
You get customizable bubbles, corner radius, timestamps, a typing indicator, and an input area, which is enough to stand up an in-app support thread or an assistant experience without inventing the layout from scratch.
Added a WrapPanel view for ListBox. Until now ListBox could only stack its items in a single row or a single column. The new vertical or horizontal WrapPanel view flows items across lines or columns based on the container size.
On the AvalonDock side, routed commands now fire correctly when a LayoutAutoHideWindowControl contains a LayoutAnchorable, and the docking manager now resizes its children properly when its window is resized.
Xceed DataGrid for WPF:
Groups and the rows beneath them no longer disappear under UI Automation.
The old behavior could break automated UI tests outright and could misreport the grid's state to assistive technology, so this keeps the grid in sync with its real content for both your test suite and screen reader users.
Xceed Business Suite for WPF V26.1主版本2026年3月15日
修复
Xceed Datagrid for WPF
Opening the print preview window when a printer is configured to use a different default page orientation will no longer trigger a NullReferenceException.
A NullReferenceException no longer occurs in HeaderFooterItem.PrepareContainer when the grid loads.