VS Designer trows exceptions if a RibbonTab is placed in a UserControl: If the RibbonTab control size isn't defined, the designer throws a System.InvalidOperationException - FrameworkElement_LayoutMeasure_InfinityNaNReturned. If the RibbonTab size is set, then clicking on the tab in the designer raises a System.ArgumentException - Property 'Items' was not found in the property collection 'Grid'.
Currently only the Left Key activates the key tips.
The RibbonTabStrip does not collapse when Application Button is Collaps as well as the RibbonTabs. This works in RibbonBar. Available in LIB version: 2014.3.1402
The RibbonGroup displays a white border on mouse over around its Image element when the group is in collapsed state when a Windows8 theme is applied.
Setting Button, TextBlock, TextBox or any other UI Element as a Header of RadRibbonGroup produces a runtime exception: The Element is Already Child of another visual.
The RibbonView ContextualGroup is not redrawn when a new RadTabItem is added dynamically and the ContextualGroup is currently active.
A "System.ArgumentException: Requested value was not found." is throws if we set AccessText containing more than one char in for the Backstage. Available in LIB version: 2015.3.1207
When the Ribbon is hosted in a RibbonWindow, the ContextualGroups are rended differently Q3 2013 release.
Available in LIB version: 2015.1.0604
The RibbonSplitButtons Text is not visible when its IsToggle property is set to true and Windows8 theme is used. Available in LIB version: 2015.1.0604
Expose an IsActiveChanged event for the ContextualGroups Will be available in Q1 2015 Release.
If you have a RadRibbonTab with two RadRibbonGroups and the RadRibbonView is minimized, the groups will be collapsed even if you set their default variant to Large. Will be available in Q1 2015 Release.
When you click on a control in the DropDownContent of a RibbonSplitButton, a click is registered in the underlying control (behind the DropDownContent).
If the height of the screen is smaller than needed the App_menu is clipped in the bottom. There are 5-10 px wrong in calculation
The RadRibbonView executes its KeyTips by executing the Command of the Button and the Invoking its peer. This behavior is inconsistent when a user interacts with the button ( first the Click/Toggle is fired then the command is executed).
The RibbonWindow throws exception for missing brush in Expression_Dark theme (Resource with the Name/Key RibbonWindow_InnerBorder is missing)
The buttons of the RadRibbonWindow are not visible in Office2013. The fill of the paths is the same color as the background.