Last Updated: 10 May 2024 10:54 by Andrey
If you place a RadScrollView (or a control that includes it, such as the DataGrid) inside a TabView and scroll horizontally, switching the tabs leads to a NullReferenceException.
Last Updated: 04 Oct 2023 07:55 by Jiri

Steps to reproduce

- open QSF.sln

- open WorldClockView.xaml

- add x:Name="tabView" to RadTabView

- add IsVisible="False" to Auckland tab item !!!

- open WorldClockView.cs

- add this code to the end of page constructor:

 var tabItem = new TabViewItem()
     Header = new TabViewHeaderItem { Text = "Prague" },
     Content = new StackLayout
         Children =
             new Label {Text = "Prague"}
 var index = tabView.Items.Count - 2;
 tabView.Items.Insert(index, tabItem);
The content for Prague header is the content from different tab.




Last Updated: 24 Feb 2023 10:24 by Brandon

when TabView is inside Stack and item is added dynamically to the RadTabView, the content of this first item does not layout as expected. 

    <Button Text="Add" Clicked="OnAddClicked" />
    <Button Text="Remove" Clicked="OnRemoveClicked" Margin="0,5,0,5" />
    <Button Text="Clear" Clicked="OnClearClicked" />
    <telerikPrimitives:RadTabView BackgroundColor="Red" x:Name="tabView" AutomationId="tabView"/>





Last Updated: 19 Jul 2021 12:53 by David

In a scenario where TabView items are added and removed dynamically and IsContentPreserved property is set to "True" - if a new item is added, then the user selects it and the same item is removed, an exception is raised on iOS.

Last Updated: 28 May 2021 13:51 by ADMIN

When we add some controls, for example, 3 controls in a row inside the first tab item, then 5-10 controls in a row in the second tab item of the tabview, we can only see the first 3 controls in the first tab. In other words, we can only see the controls in the row up to the height of the first tab's content.


The issue appears in SlideView control as well. The TabView control uses SlideView internally.

Last Updated: 13 Apr 2021 11:56 by ADMIN
Release 2021.1.413 (R1 2021 minor release)
Under "normal" conditions, the user interacts with each tab in turn, finally getting to the last tab and submitting valid data, but under some conditions the tab control appears to not function correctly - clicking on the headers quickly will change which tab's header is highlighted, but the display content does not change. 
Last Updated: 13 Apr 2021 11:56 by ADMIN
Release 2021.1.413 (R1 2021 minor release)
if you rapidly switch between random tabs immediately after the page is displayed and IsContentPreserved is True, the tabview content stops getting updated
Last Updated: 24 Feb 2021 13:39 by ADMIN
Release R1 2021 SP1
With R1 2021 release the  the content of the first tab of the TabView is not visible on UWP.
Last Updated: 18 Oct 2019 11:40 by ADMIN
Created by: Prasanth
Comments: 0
Category: TabView
Type: Bug Report

When longer string is used for HeaderText the text could not be wrapped. Also the issue occurs when using Label with LineBreakMode="WordWrap" inside the TabViewHeaderItem.Content:

                <Label Text="Lorem ipsum dolor sit amet, consectetur adttert etertert erterter ipiscing elit." LineBreakMode="WordWrap"/>
        <Label Margin="10" Text="Label" />


Last Updated: 21 Jan 2019 06:06 by ADMIN
When you have declared a RadTabView with a single item and you try adding items at runtime - the new TabViewItems are added to the Items collection of the control but the UI is not updated.
Last Updated: 27 Jul 2018 11:14 by ADMIN
Created by: Lance | Senior Manager Technical Support
Comments: 2
Category: TabView
Type: Bug Report
Allow different width tab headers. For example, 200, 100, 100.

Available in minor release 2018.2.727.250. It will also be available in the R3 2018 release.