Created Improvements in v4.1.0 (markdown)

Improvements-in-v4.1.0.md

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+## <a id="Community410"></a>v4.1.0
+
+_Released May 18, 2021._
+
+**20 bug fixes and improvements**
+
+* In AvalonDock, de-serializing AvalonDock many times in the same frame no longer raises an exception related to floatingWindows that can't show up because they are already closed.
+* In AvalonDock, floating a LayoutAnchorable contained in a multi-LayoutAnchorableGroup with specific star sizes no longer resets the sizes of the remaining LayoutAnchorables after the floating.
+* In AvalonDock, moving a LayoutFloatingWindowControl over the DockingManager no longer shows the overlay of any LayoutAnchorableFloatingWindow positioned behind the DockingManager.
+* In AvalonDock, the LayoutAnchorable pin button tooltip and its context menu now displays a "Restore" text instead of an "AutoHide" text when the control is auto-hidden.
+* In AvalonDock, when auto-hiding a LayoutAnchorable, only the selected LayoutAnchorable now gets auto-hidden instead of all the LayoutAnchorables within the same LayoutAnchorablePane.
+* In AvalonDock, when the DockingManager window is hidden, floating windows can no longer be dropped inside the DockingManager.
+* In CalculatorUpDown, setting the IsReadOnly property to true no longer enables the toggleButton to pop the Calculator.
+* In CheckComboBox and CheckListBox, using these controls inside the tabs of a TabControl with their SelectedItemsOverride property set no longer removes the selection while switching tabs.
+* In CheckListBox and CheckComboBox, the new ItemSelectionChanging event is now available to cancel a selection/deselection.
+* In PropertyGrid, properties of type Collection/Array/Dictionary, which only contains a getter, can now be opened with their editor, but not edited.
+* In PropertyGrid, the expander background color SystemColors.ControlBrush can now be easily overridden.
+* In PropertyGrid, the new PropertyNameTextWrapping property can now be used to wrap long property names.
+* In PropertyGrid, the PropertyValueChanged event is now raised when a PropertyItem of type IEnumerable is modified through the CollectionEditor.
+* In PropertyGrid, using a ComboBox editor for PropertyItems when PropertyGrid.IsReadOnly property is true now prevents from modifying the comboBox value.
+* In PropertyGrid, when the IsVirtualizing property is false, scrolling over expanded sub-propertyItems no longer jumps to the next propertyItem when the parent propertyItem goes out of view.
+* In SplitButton, DropDownButton and MultiLineTextEditor, the ContentStringFormat property can now be used to format a content string.
+* In TimeSpanUpDown, incrementing when no value is set and CurrentDateTimePart is set now increments the corresponding dateTime part.
+* In TimeSpanUpDown, when the property ShowDays is true, the control now always displays the days in a "00" format, even when there are 0 days.
+* In WindowContainer, calling Children.Remove() no longer throws a NullRefException for a null child.
+* In Zoombox, re-connecting during a remote desktop connection session no longer raises a NullRefException.
+
+We hope you love this release and decide to support the project by getting a license to Xceed Toolkit Plus for WPF.
+-- Xceed Team
+
+-----