Approved
Last Updated: 13 Dec 2018 11:34 by ADMIN
Binding error appears when the control is placed inside a RadTabItem
Completed
Last Updated: 09 Nov 2018 09:13 by ADMIN
When you have the TabStripPlacement property set to something other than Top and you try to hide the TabControl border by setting the BorderThickness property to 0. The border is still shown. If you have TabStripPlacement set to Top the border disappears.

As a workaround set the BorderBrush property of the RadTabControl to "Transparent".
Approved
Last Updated: 30 Oct 2018 09:40 by Viktoria
RadTabControl is currently designed to support scrolling of RadTabItems only when any of them is currently focused. An ability to scroll RadTabItems without explicitly focusing them should be provided.
Approved
Last Updated: 21 Jun 2018 06:30 by ADMIN
ADMIN
Created by: Martin Ivanov
Comments: 0
Category: TabControl
Type: Feature Request
1
RadTabControlBase expose a protected method called OnPreviewSelectionChanged that should raise the event PreviewSelectionChanged event. This means that you should be able to override it and implement additional logic if necessary.

However, the method is never used in the code and therefore it is not fired when the PreviewSelectionChanged event raises. 

Use the method to raise the event.
Approved
Last Updated: 20 Apr 2018 12:35 by Vladimir
ADMIN
Created by: Vladimir Stoyanov
Comments: 0
Category: TabControl
Type: Bug Report
1

			
Approved
Last Updated: 20 Mar 2018 16:03 by ADMIN
ADMIN
Created by: Petar Mladenov
Comments: 2
Category: TabControl
Type: Bug Report
1
When you select the RadTabItems via Keyboard or Mouse, Narrator or other Accessibility tools like NVDA do no read the selected tab.

This is a bug in the RadTabControlAutomaitonPeer / RadTabItemAutomationPeer's code.

Usually screen readers read "Selected Tab One", "Selected Tab 2". This is how MS TabControl is read actually.

Completed
Last Updated: 08 Mar 2018 09:17 by ADMIN
Scrolling in TabStrip does not work well when TabStripPlacement=Left or Bottom and  ScrollMode=Item. Pressing the Scroll Buttons scrolls the entire set of tabs.
Approved
Last Updated: 08 Feb 2018 11:50 by ADMIN
Approved
Last Updated: 15 Jun 2017 12:56 by ADMIN
When pressing the Alt key, the access key of a given element must be displayed. Inside the Header of a TabItem it is not. The issue is not reproducible with the standard MS TabItem. It seems that it is related to the Foreground binding of the control. There is a workaround as shown below.

<telerik:RadTabControl>
    <telerik:RadTabItem >
        <telerik:RadTabItem.Header>
            
                <AccessText Text="_Tab 1"
                            Foreground="{Binding RelativeSource={RelativeSource AncestorType=telerik:RadTabItem},
                            Path=Foreground}"/>
        </telerik:RadTabItem.Header>
    </telerik:RadTabItem>
</telerik:RadTabControl>
Won't fix
Last Updated: 29 Mar 2017 14:06 by ADMIN
Exceptions are occuring on ALL bindings, not just with RelativeSource

Command="{Binding AddCommand}"

will also raise an exception.
Approved
Last Updated: 17 Mar 2017 14:36 by ADMIN
Completed
Last Updated: 10 Mar 2017 06:43 by joan miquel fernandez cañadas
The TabItem doesn't changes when selected Item in the VS2010 designer.

UPDATE:
The issue is present also in the VS2008 and Blend.
Approved
Last Updated: 17 Feb 2017 14:40 by ADMIN
By default, when selecting through the tab items, the first focusable element within each RadTabItem will gain focus. This is the behavior of the standard  RadTabItem as well. Provide an option to disable this default selection through a boolean property.
Won't fix
Last Updated: 23 Jan 2017 12:23 by ADMIN
When the SelectedIndex property is read during animation the CLR wrapper will throw InvalidCastException because of invalid cast to int. The object returned from GetValue is DeferredReference object.
Approved
Last Updated: 04 Jan 2017 14:34 by Anthony
Created by: Anthony
Comments: 1
Category: TabControl
Type: Bug Report
0
In version 2016.2.613.45 of the Office2013 Theme, there is a problem in the control template for the RadTabControl. The ContentBorder element properly gets it's BorderThickness from the TemplatedParent, but the PlacementStates VisualStates override it with hard-coded Thickness (0,1,1,1 in the case of the "Left" Visual State) in their storyboards rather than doing an appropriate transform of the Thickness. This makes it impossible to override the BorderThickness for the control in any state other than the default layout without copying and replacing the entire control template. This appears to be a change in behavior since the (Februray 2016?) release, but I cannot be sure as the old theme files were uninstalled during the upgrade and the telerik.windows.controls.navigation.baml file is not properly decompiled in JustDecompile.
Approved
Last Updated: 03 Jan 2017 21:24 by ADMIN
Workaround: Set HorizontalScrollBarVisibility property to Visible in order to show the scrollbar: 
<telerik:RadTabControl ScrollViewer.HorizontalScrollBarVisibility="Visible" .../>

or use Loaded event of TabControl and change the Height in order to trigger SizeChanged:
private void xTab_Loaded(object sender, RoutedEventArgs e)
{
    this.Height++;
    this.Height--;
}
Approved
Last Updated: 03 Jan 2017 21:20 by ADMIN
The SelectedTabContent is not added when the control is loaded in memory and a we try to create a ImageSource out of the UserControl hosting the TabControl
Approved
Last Updated: 03 Jan 2017 21:19 by ADMIN
If you define two UserControls in a project and you add two RadTabControls - one RadTabControl per UserControl, then in design-time you can only change the selection of one of the tab components.
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