Created Improvements in v4.5.0 (markdown)

Improvements-in-v4.5.0.md

@@ -0,0 +1,29 @@
+## <a id="Community450"></a>v4.5.0
+
+_Released November 25, 2022._
+
+**18 bug fixes and improvements**
+
+* In AvalonDock, the DockingManager now includes four new events, called PreviewFloat, Floated, PreviewDock and Docked, which track the floating and docking process of a LayoutAnchorable or LayoutDocument.
+* In AvalonDock, hovering over the application's taskbar icon will now show all of the DockingManager’s floating windows along with the application's main window.
+* In AvalonDock, floating LayoutAnchorables that are docked as tabbed documents now dock back properly into the DockingManager when it has no children.
+* In AvalonDock, when floating, maximizing, and minimizing Layout windows, the FloatingHeight and FloatingWidth properties now return the correct values.
+* In AvalonDock, selecting a LayoutContent that has its Content property set to null will now properly select that LayoutContent.
+* In AvalonDock, a LayoutAnchorable no longer docks to itself when docking a FloatingAnchorable that was floated from a LayoutDocumentPane where it was a unique child.
+* In AvalonDock, when a Layout is floated and closed, its IsFloating property is now set to false.
+* In AvalonDock, all of the parent's InputBindings are now used by the floating windows.
+* In AvalonDock, reloading an application that contains LayoutDocumentFloatingWindows now keeps the InputBindings active in the floating windows.
+* In AvalonDock, resetting the layout with a default file no longer throws a NullRefException.
+* In AvalonDock, an exception is no longer thrown when undocking tabbed LayoutItems that are not contained in a DocumentPaneTabPanel.
+* In CollectionControl, cancelling no longer removes child items from the Collection.
+* In DateTimePicker, an exception is no longer thrown when the calendar popup is opened.
+* In DockingManager, a new property, called AllowMovingFloatingWindowWithKeyboard, is now available to determine if a floating window control can be moved with the keyboard’s arrow keys or not.
+* The DropDownButton no longer closes when the child ContextMenu is opened.
+* In LayoutFloatingWindowControl, LayoutAnchorableFloatingWindowControl and LayoutDocumentFloatingWindowControl, a new property, called ResizeBorderThickness, can now be used to get or set the width of the border that is used to resize a floating window.
+* In PropertyGrid, a new editor, the CheckComboBoxEditor, is now available for Enum properties that use "Flags".
+* In PropertyGrid, using the mouse wheel over the vertical splitter that is located between the PropertyNames and PropertyValues now allows to scroll vertically.
+
+We hope you love this release and decide to support the project by getting a license to Xceed Toolkit Plus for WPF.
+-- Xceed Team
+
+-----