Output error in VS:

System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='Telerik.Windows.Controls.RadRibbonView', AncestorLevel='1''. BindingExpression:Path=IsHostedInRibbonWindow; DataItem=null; target element is 'WindowTitle' (Name='WindowTitle'); target property is 'NoTarget' (type 'Object')

The KeyboardNavigation throws null reference exception when you try to move through the DropDownButton of the QAT and we does not have the button in the style targeting the QAT.


Available in LIB version: 2016.3.1121

Workaround for this bug is setting Style.Triggers for this scenario.

<Style BasedOn="{StaticResource RadRibbonSplitButtonStyle}" TargetType="telerik:RadRibbonSplitButton">
  <Style.Triggers>
    <MultiTrigger>
      <MultiTrigger.Conditions>
        <Condition Property="IsChecked" Value="True"/>
        <Condition Property="IsEnabled" Value="True"/>
        <Condition Property="CurrentSize" Value="Medium"/>
      </MultiTrigger.Conditions>
      <MultiTrigger.Setters>
        <Setter Property="Foreground" Value="{DynamicResource CheckedBrush}"/>
      </MultiTrigger.Setters>
    </MultiTrigger>
  </Style.Triggers>
</Style>

Available in LIB version: 2016.3.1003

Workaround:
In the Loaded event of the RibbonWindow, use the Telerik.Windows.Controls.RibbonView.Shell.WindowChrome class to get the current window and set its ResizeBorderThickness property to 0. 

public MainWindow()
{
    InitializeComponent();
    this.Loaded += MainWindow_Loaded;
}
 
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
    Telerik.Windows.Controls.RibbonView.Shell.WindowChrome chome = Telerik.Windows.Controls.RibbonView.Shell.WindowChrome.GetWindowChrome(this);
    chome.ResizeBorderThickness = new Thickness(0);
}

The workaround is setting in the ControlTemplate of the RadRibbonSplitButton in Button x:Name="ButtonPart" setter for a custom style  or Style="{TemplateBinding ButtonPartStyle}" and adding a ButtonPartStyle in the setters of the RadRibbonSplitButton to point to the default RadButtonStyle.


Available in R3 2016 Release

Available in LIB version: 2016.2.725

This is reproducible only if the application that holds RadRibbonView is started on another machine and you are connected to it through Remote Desktop Connection. When the keytips are enabled and you click in the main machine, then click inside the remote desktop window, the keytips are displayed.

This exception reproduces only if the keytips are enabled and the ribbonview is set as a Content of RadPane (or RadTabItem) that is not selected, and also the MinimizeButtonVisibility property is set to Visible.

The error will occur also if the HelpButtonVisibility is set to Visible.

As a workaround you can set the MinimizeButtonVisibility to Collapsed. Then subscribe for the SelectionChanged event of the pane group and in its handler set the visibility to Visible only when the corresponding pane is selected.



Available in LIB version: 2016.2.725

The ApplicationMenu is not closed when a button's keytip is activated. 


Available in LIB version: 2016.2.725

After you re-select a (RadRibbon)DropDownButton  (wrapped in RadRibbonGallery expand content), the button disappears together with any other content of the RadRibbonGallery.

Possible workaround could be handling DropDownClosed event of the DropDownButton and setting e.Handled = True.


Available in LIB version: 2016.2.725

RadRibbonDropDown is not closed when RadListBoxItem is selected with keyboard navigation(when enter is pressed)


Available in LIB version: 2016.2.725

Available in LIB version: 2016.2.725

Application title disappears when you change the current theme to Expression_Dark or Windows8.

As a workaround: You can set the RadRibbonWindow.IsWindowsThemeEnabled static property to False in order to apply the Telerik predefined themes instead of using the Windows OS theme. 

Available in LIB version: 2016.1.21

Available in LIB version: 2016.1.21

Available in LIB version: 2016.2.516

The KeyTips of the RadRibbonView are drawn incorrectly with FlowDirection set to RighToLeft 

Available in LIB version: 2016.2.725

Items in RadCollapsible are not rendered correctly on Windows7 with DPI 150% and UseLayoutRounding set to true and ItemSpacing is set to more than 0.

Available in LIB version: 2015.3.1215

Black bar apears on Windows10 machine when in Maximized state and the RadRibbonView has set Visibility="Collapsed".

Available in LIB version: 2016.1.21

Available in LIB version: 2016.2.516