Completed
Last Updated: 16 Nov 2022 14:27 by ADMIN
Release LIB 2022.3.1121 (21 Nov 2022)
When there are tabs present which have their Visibility property set to Collapsed and the ScrollMode of the control is Item, scrolling the items via the arrow buttons skips items unexpectedly.
Completed
Last Updated: 19 Jan 2023 14:50 by ADMIN
Created by: Jorge
Comments: 1
Category: TabControl
Type: Feature Request
2

Currently, when scrolling tabs in a TabControl using the mouse wheel, the direction of the scroll is the opposite as tab controls of many other applications, for example all web browsers scroll tabs in the opposite direction as the Telerik RadTabControl.

This behaviour may cause frustration in the end user and damages the user experience. I think it's necessary to expose a way to allow inverting the RadTabControl mouse wheel scroll direction.

Completed
Last Updated: 13 May 2022 18:18 by ADMIN
Release LIB 2022.2.516 (16 May 2022)
The RadTabItem elements are not correctly displayed with long values set to the Header property when the TabOrientation="Vertical" and the used theme is Office2019.
Completed
Last Updated: 22 Mar 2021 07:13 by ADMIN
Release LIB 2021.1.322
This happens if you use the DropDownOpened event of RadTabControl in order to reorder the DropDownItemsSource of the event arguments. In this case, the synchronization of the selection between the drop down and the tab items is broken.

To work this around, you can disable the default overflow button and implement a custom one in the AdditionalContent of RadTabControl. Check the attached project for a sample implementation.
Completed
Last Updated: 27 Nov 2020 14:34 by ADMIN
Release LIB 2020.3.1130 (11/30/2020)
The Align property is not respected in the following themes: Windows8Touch, Office2019
Completed
Last Updated: 25 Nov 2019 12:03 by ADMIN
Release LIB 2019.3.1125

Drag and drop from Visual Studio Toolbox to the designer area doesn't allow you to drop the corresponding control inside the content of the selected tab item. 

To work this around, add a Grid panel with transparent background inside the RadTabItem's in XAML. You can do this also  through the toolbox.

 <telerik:RadTabItem x:Name="RadTabItem1" Header="Tab item 1">
	<Grid Background="Transparent" />
 </telerik:RadTabItem>

Completed
Last Updated: 14 Oct 2019 11:05 by ADMIN
Release LIB 2019.3.1014

TabControl's TabItems aren't properly updated on attempt to change the theme palette variation runtime until any of the items is selected. Check the following video - https://www.screencast.com/t/jMj0EZqFfy.

There are several possible workarounds which include:

  • Clearing all merged resource dictionaries and re-merging them
  • Increasing and decreasing the height of the MainWindow by 1 after loading the chosen palette to force the refresh
Completed
Last Updated: 06 Jun 2019 06:50 by ADMIN
Release LIB 2019.2.610 (06/10/2019)
In R2 2019 there is a regression bug in RadTabControl.
Clicking with mouse middle button over a tab removes it from the Items collection.
====
Workaround: In R2 2019 or for particular items, user can handle PreviewMouseDown event of the RadTabItem and if the pressed button is middle - handle the event. 
private void RadTabItem_PreviewMouseDown(object sender, MouseButtonEventArgs e)
       {
           if (e.ChangedButton == MouseButton.Middle)
           {
               e.Handled = true;
           }
       }
Completed
Last Updated: 11 Jun 2019 10:03 by ADMIN
Release R2 2019 SP1
Completed
Last Updated: 22 May 2019 11:25 by ADMIN
Release LIB 2019.2.527 (05/27/2019)
A design time error occurs when referencing NoXaml assemblies. 
The error message is the following: "Cannot find resource named 'RadButtonStyle'. Resource names are case sensitive."
Completed
Last Updated: 31 Jan 2019 12:09 by ADMIN
error appears when the control is placed inside a RadTabItem

Scheduled for:
The fix for this issue will be available with LIB (version 2019.1.204) scheduled for publishing on Monday, 4th February 2019.
Completed
Last Updated: 25 May 2023 13:34 by ADMIN
Completed
Last Updated: 14 Oct 2019 10:44 by ADMIN
Release LIB 2019.3.1014
ADMIN
Created by: Dinko | Tech Support Engineer
Comments: 0
Category: TabControl
Type: Bug Report
1

			
Completed
Last Updated: 28 Oct 2019 11:04 by ADMIN
Release LIB 2019.3.1028
ADMIN
Created by: Petar Mladenov
Comments: 2
Category: TabControl
Type: Bug Report
2
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: 12 Feb 2019 16:05 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>
Completed
Last Updated: 05 Feb 2015 16:28 by ADMIN
ADMIN
Created by: Kiril Vandov
Comments: 0
Category: TabControl
Type: Feature Request
0
A System.Windows.Documents.Hyperlink' is not a Visual or Visual3D Exception is thrown when you click on a Hyperlink inside a RadTabControl and then try to scroll using the MouseWheel


Available in LIB version: 2014.3.1409
Completed
Last Updated: 12 Nov 2014 09:24 by ADMIN
Fixed in LIB version: 2014.3.1103
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".
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.
Completed
Last Updated: 11 Aug 2016 14:04 by Rayne
ADMIN
Created by: Tina Stancheva
Comments: 1
Category: TabControl
Type: Feature Request
19
Create custom region adapter for the RadTabControl

We have created a SDK sample with a CustomRegionAdapter for the RadTabControl and its implementation can be found in out SDK repository(https://github.com/telerik/xaml-sdk/tree/master/TabControl/PRISM/CustomTabControlRegionAdapter)
1 2