Completed
Last Updated: 14 May 2024 15:37 by ADMIN
Release 2024.2.514 (2024 Q2)

The width of the popup element that shows the selected tab content when RadRibbonView is minimized is wrong in the following situation. A tab in the minimized ribbon is clicked to display its content, then the tab is clicked again. After that, the width of the ribbon is changed. At this point when you open the minimized content, the popup uses the previous size of the RadRibbonView control. 

To work this around, you can manually update the MaxWidth of the popup content element on size changed.

public class CustomRibbonView : RadRibbonView
{
    private ContentPresenter popupContent;

    public override void OnApplyTemplate()
    {
        base.OnApplyTemplate();
        this.popupContent = this.GetTemplateChild("SelectedTabContentPopup") as ContentPresenter;
    }

    protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo)
    {
        base.OnRenderSizeChanged(sizeInfo);
        if (popupContent != null)
        {
            double popupContentPadding = 16;
            popupContent.MaxWidth = this.ActualWidth - popupContentPadding;
        }
    }
}

Completed
Last Updated: 11 Mar 2024 07:36 by ADMIN
Release 2024.1.312
Unpinned RibbonView content popup is not rendered correctly (has invalid width) when the application main window is of type RadRibbonWindow and in Maximized Mode.
Completed
Last Updated: 26 Oct 2023 11:52 by ADMIN
Release LIB 2023.3.1106 (6 Nov 2023)
The checked RadRibbonSplitButton doesn't look good and it is not consistent with the RadRibbonToggleButton when hosted in QuickAccessToolBar. This is reproducible when the IsToggle of the button is set to True and the button is checked (IsChecked=True). Also, it reproduces in the Windows11 and Office2019 themes.

To work this around, you will need to re-template the button when hosted in QuickAccessToolBar.
Completed
Last Updated: 26 Oct 2023 10:07 by ADMIN
Release LIB 2023.3.1106 (6 Nov 2023)

The RibbonSplitButton can behave like a toggle button by setting its IsToggle property to True. When the button is hosted in ApplicationMenu its default template is changed with a special one that adjust the UI of the button to the ApplicationMenu design. However, the alternative template is missing the code that updates the UI of the button when the IsChecked property is True.

To work this around, you can edit the ControlTemplate of RadRibbonSplitButton. The template for the button when hosted in ApplicationMenu is using the following x:Key "ApplicationRibbonSplitButtonTemplate". You can apply the edited template through the Template property of RadRibbonSplitButton.

Completed
Last Updated: 27 Oct 2023 06:27 by ADMIN
Release LIB 2023.3.1106 (6 Nov 2023)

By default the drop down buttons (like RadRibbonDropDownButton and RadRibbonSplitButton are opening their drop down content on mouse enter, when hosted in ApplicationMenu. When a drop down of a button is opened and you hover another button, the currently opened drop down should get closed. But this doesn't happen when the ApplicationMenu is populated through its ItemsSource and the buttons are defined in the ItemTemplate.

To work this around avoid using ItemsSource and ItemTemplate. Instead add the buttons directly in the Items collection of ApplicationMenu.

Completed
Last Updated: 02 Oct 2023 08:21 by ADMIN
Release R3 2023

The RadRibbonWindow titlebar is higher than expected when the Windows 11 theme is used. 

A side effect of this is that the content overlaps the titlebar, when the content is not a RadRibbonView. 

This reproduces when the Windows11 and Crystal themes are used. To reproduce it, the IsWindowsThemeEnabled property should be set to false in order for the Telerik theme to get applied to the window.

To work this around, you can use the visual tree helper methods in the Loaded event of RadRibbonWindow in order to get the corresponding visuals and change their size and offset.

private void RadRibbonWindow_Loaded(object sender, RoutedEventArgs e)
{
	var windowDecoratorPanel = this.ChildrenOfType<Grid>().FirstOrDefault(x => x.Name == "MaximizeWindowDecorator");
	var titleBarPanel = windowDecoratorPanel.FindChildByType<Grid>();
	titleBarPanel.RowDefinitions[0].Height = new GridLength(30);

	var clientArea = windowDecoratorPanel.ChildrenOfType<Border>().FirstOrDefault(x => x.Name == "PART_ClientAreaBorder");
	clientArea.Margin = new Thickness(0);
}

Completed
Last Updated: 28 Aug 2023 07:25 by ADMIN
Release LIB 2023.2.904 (4 Sep 2023)

Setting the LayoutMode to Simplified doesn't do anything in the RadRibbonTabs that are assigned to a RadRibbonContextualGroup.

To work this around, extract the "ContextualTabsTemplate" ControlTemplate and the following elements in the "RibbonScrollViewer".

 

<telerikRibbonViewPrimitives:RibbonScrollViewer x:Name="TabItemsScrollViewer">
	<Grid>
		<ItemsPresenter x:Name="PART_DefaultItemsPresenter" HorizontalAlignment="Left" />
		<ItemsControl x:Name="PART_SimplifiedItemsControl" Visibility="Collapsed" 
				  ItemsSource="{Binding SimplifiedItems, RelativeSource={RelativeSource TemplatedParent}}">
			<ItemsControl.ItemsPanel>
				<ItemsPanelTemplate>
					<telerikRibbonViewPrimitives:RibbonGroupsPanel />
				</ItemsPanelTemplate>
			</ItemsControl.ItemsPanel>
		</ItemsControl>
	</Grid>
</telerikRibbonViewPrimitives:RibbonScrollViewer>

 

Then define the following DataTrigger in the ControlTemplate.Triggers collection:

 

<DataTrigger Binding="{Binding RelativeSource={RelativeSource AncestorType=telerikRibbonView:RadRibbonView}, Path=LayoutMode}" Value="Simplified">
	<Setter TargetName="PART_SimplifiedItemsControl" Property="Visibility" Value="Visible"/>
	<Setter TargetName="PART_DefaultItemsPresenter" Property="Visibility" Value="Collapsed"/>
</DataTrigger>

 

Then, assign the custom ControlTemplate via the Template property of RadRibbonTab.

 

<telerik:RadRibbonTab Template="{StaticResource CustomContextualRibbonTabTemplate}" />

 

Completed
Last Updated: 13 Apr 2023 10:35 by ADMIN
Release LIB 2023.1.424 (24 Apr 2023)

NullReferenceException is thrown on start up of the application, when the IsMinimized property of RadRibbonView is set to True initially. For example, if you set it in XAML.

To work this around, set the IsMinimized property in the Loaded event handler of RadRibbonView.

private void RadRibbonView_Loaded(object sender, System.Windows.RoutedEventArgs e)
{
	var ribbonView = (RadRibbonView)sender;
	ribbonView.IsMinimized = true;
}

 

Completed
Last Updated: 03 Feb 2023 11:46 by ADMIN
Release LIB 2023.1.206 (6 Feb 2023)
Currently, a ScreenTip is opened 500 milliseconds after you hover the associated item. This is a hardcoded value that cannot be changed. Add a property to change this. For example another attached property in the ScreenTip class.

For example: ScreenTip.InitialShowDelay="1000"
Completed
Last Updated: 04 Nov 2022 08:08 by ADMIN
Release R3 2022 SP1
The backstage of the RadRibbonView cannot be opened when the control is placed inside a WinForms application. 
Completed
Last Updated: 27 Jun 2022 06:15 by ADMIN
Release LIB 2022.2.627 (27 June 2022)
When the dropdown popup of the RadRibbonDropDownButton or RadRibbonSplitButton is opened, the ApplicationMenu is not resized, in order to fit the dropdown items.
Completed
Last Updated: 22 May 2022 21:10 by ADMIN
Release LIB 2022.2.523 (23 May 2022)
When the Visibility of the RadTabItem is set to Collapsed the keyboard navigation does not work as expected. 
Completed
Last Updated: 31 May 2022 06:18 by ADMIN
Release LIB 2022.2.530 (30 May 2022)

If you add the RibbonView into the Content of a TabItem (or RadTabItem) and then remove it from the content, the RibbonView is still in the memory. 

This happens because we subscribe to few events of the Parent window on Loaded and unsubscribe on Unloaded. However, because of the specific content loading behavior of TabControl, Loaded of the content (the RibbonView) is fired once and Unloaded only once.

To work this around, before removing the RibbonView from the TabItem, call its OnUnloaded event handler. To do this, you can use a reflection to get the handler and then invoke it.

var methodInfo = typeof(RadRibbonView).GetMethods(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic).Where(m => m.Name == "OnUnloaded").First();
methodInfo.Invoke(ribbon, new object[2] { null, null });

Completed
Last Updated: 29 Nov 2021 12:27 by ADMIN
Release LIB 2021.3.1129 (29 Nov 2021)
When the Windows OS auto-hide taskbar feature is enabled, the RadRibbonWindow is clipped and offset on the top and left sides. This reproduces only if the window is maximized initially. Changing its state afterwards resolves the visual glitch. Also in order to recreate this the IsWindowsThemeEnabled property should be set to False, in order for the ribbon window to use its Telerik theme, instead of the Windows one.
Completed
Last Updated: 28 Oct 2021 11:39 by ADMIN
Release LIB 2021.3.1101 (1 Nov 2021)
In the Quick Access Toolbar drop-down part, navigating the items while pressing the Up/Down arrow keys will Highlight all items.
Completed
Last Updated: 01 Oct 2021 07:16 by ADMIN
Release LIB 2021.3.1004 (4 Oct 2021)
The content of RadRibbonWindow is positioned wrongly when the Windows taskbar auto-hiding is enabled. This happens on Windows 10.
Completed
Last Updated: 08 Jun 2021 10:18 by ADMIN
Release LIB 2021.2.608 (08 Jun 2021)

This reproduces only if RadRibbonWindow is used with the default WPF Window's theme, instead of the Telerik's theme. Also, this reproduces only in the themes after Expression_Dark (starting from Windows8). You can find a list of the Telerik themes ordered chronologically in the help documentation.

If the RadRibbonWindow is maximized on the second (right) monitor and you click the application menu button to open the ApplicationMenu, the menu displays on the first (left) monitor.

To work this around enable the Telerik's RadRibbonWindow theming by setting the IsWindowsThemeEnabled static property to False.

static MainWindow()
{
    IsWindowsThemeEnabled = false;
}
Or alternatively, use the ribbon backstage control instead of the application menu.

 

Completed
Last Updated: 28 May 2021 13:02 by ADMIN
Release LIB 2021.2.531 (05/31/2021)

The window's content gets clipped when the window goes from Maximized to Normal WindowState. This reproduces only when the window and the screens are using specific sizes. The setup when this was reproduced was with a 1936x1056 size of RadRibbonWindow (in Normal state) and 1920x1080 screen resolution.

To reproduce this the IsWindowsThemeEnabled property of the RadRibbonWindow should be set to False.

To work this around, reset the Window size on WindowStateChanged.

private void MainWindow_StateChanged(object sender, EventArgs e)
{
	if (this.WindowState == WindowState.Normal)
	{               
		Width += 1;
		Width -= 1;
	}
}

Completed
Last Updated: 28 Apr 2021 13:16 by ADMIN
Release R2 2021

The content of RadBackstageItem is not stretched within the available area in the content area of the RadRibbonBackstage control. There is a gap between the title bar of the RadRibbonView control and the top border of the content area.

This reproduces with the Material theme, but it is possible to appear also in other themes.

To work this around, you can extract the ControlTemplate of RadRibbonBackstage and re-order the layout in order to stretch the content in all the available space. Check the attached project.

Completed
Last Updated: 16 Nov 2020 13:37 by ADMIN
Release LIB 2020.3.1116
When the EnsureHandle method of WindowInteropHelper is called on a RadRibbonWindow instance that is not shown the UI is frozen. 
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