Bug report

When NVDA is turned on the navigation in TabStrip is not working.

Reproduction of the problem

1. Open the TabStrip demos - https://demos.telerik.com/kendo-ui/tabstrip/index
2. Try to navigate between the tabs using the arrow keys.

Current behavior

The selection of the item is not changed.

Expected/desired behavior

It should be possible to navigate between the tabs in the TabStrip when NVDA is turned on.

The issue is a regression starting with 2022 R3 (2022.3.913) release.

Environment

• Kendo UI version: 2023.3.1114
• Browser: [all]

Bug report

The selected tab's text is not readable with the main-dark theme

Reproduction of the problem

1. Open the TabStrip Overview demo - https://demos.telerik.com/kendo-ui/tabstrip/index?autoRun=true&theme=material-main-dark

Current behavior

The background of the Selected Tab is white and the text is not readable

Expected/desired behavior

The background of the Selected tab should contrast to its text

Environment

• Kendo UI version: 2023.2.718
• Browser: [all]

Bug report

TabStrip items are not receiving focus when navigating. Only the disabled items receive k-focus class.

Reproduction of the problem

Scenario 1:

1. Open the Dojo - https://dojo.telerik.com/@NeliKondova/ucOToMUD/2
2. Navigate using the keyboard

Scenario 2:

1. Open the same Dojo and select a tab different than Tab 1

Current behavior

Scenario 1: The items could not be focused. The k-focus class is applied only to the 'Tab 3' tab which is disabled.
Scenario 2: The first Tab receives the k-focus class for a moment and appears as focused, while a different tab is selected

Expected/desired behavior

The tabs in the TabStirp should receive focus.

Environment

• Kendo UI version: 2023.1.425
• Browser: [all ]

Reproduction of the problem

https://dojo.telerik.com/AGaceyAD

Current behavior

Tabs exceeds parent container.
https://www.screencast.com/t/H4lCTxwwr

Expected/desired behavior

Tabs should wrap to the next row.

Environment

• theme: less themes
• Kendo UI version: 2022.2.510
• Browser: all

Hi Team,

I would like to request the functionality to configure the tabs position to be in multiple locations.  Please see the attached image for an example.

Thank you!

Bug report

For a TabStrip in a PanelBar, the content for all tabs is displayed initially. You need to select all the tabs so that the content would start displaying correctly for the corresponding tab.

Reproduction of the problem

1. Open this Dojo - https://dojo.telerik.com/@martin.tabakov@progress.com/IxUxAfOT/5

Current behavior

The content for all the tabs is displayed.

Expected/desired behavior

The content should be displayed separately for each tab.

Environment

• Kendo UI version: 2021.3.1207
• Browser: [all]

Bug report

Selecting a tab from the TabStrip causes the page to scroll to the top. The body height must be at least 746px in order to reproduce the bug.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/@Dimitar-Goshev/ANOkAfor
2. Scroll down the page until the tab's content is visible.
3. Select another tab.

Current behavior

The page scrolls to the top.

Expected/desired behavior

Selecting a tab shouldn't cause scrolling.

Environment

• Kendo UI version: 2021.3.1207
• Browser: [all]

not sure 100% if this is our issue or yours but we recently implemented dark theme using kendo.black.min.css.  On line 3485 (in our version) it applies a glass.png texture to selected objects, giving it a glowing highlight.  That's great.  However, displaying a floating window, it also has k-state-active on it, and we get a horizontal bar in the center of the popup caused by this css.  See photo.

Describe the regression
Using the latest version of Kendo UI, if the Kendo UI TabStrip is set to scrollable: false, the tabs flex styling/structure is affecting the appearance of the tabs.

To reproduce
Steps to reproduce the behavior:

1. Go to the following Progress Kendo UI Dojo

Expected behavior
Previously in Kendo UI version 2021.2.616, setting the scrollable to false will wrap the tabs above each other.
Working example

Screenshots

Affected suites

• Kendo UI for jQuery

Affected browsers

• All

Build system information

• Not Applicable

Hi,

I combined code form two examples found on your site in order to reproduce the bug.

The original example describes how to append tab to the tabStrip:

https://docs.telerik.com/kendo-ui/api/javascript/ui/tabstrip/methods/append

dojo editor: https://dojo.telerik.com/alEGIcod

I added this line

tabStrip.remove("li:first");

that was copied from the other example about removing tab:

https://docs.telerik.com/kendo-ui/api/javascript/ui/tabstrip/methods/remove)

Just "li:last" I replaced by "li:first"

Now the appended tab has content of the second tab "Content 2" instead of "Appended Tab 1 content".

The bug reproduced.

I think that the problem is that the both tabs have the same id: id="tabstrip-tab-2"

 

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>Kendo UI Snippet</title>

    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2020.3.1118/styles/kendo.default-v2.min.css"/>

    <script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2020.3.1118/js/kendo.all.min.js"></script>
</head>
<body>

<div id="tabstrip">
    <ul>
        <li>Tab 1</li>
        <li>Tab 2</li>
    </ul>
    <div>Content 1</div>
    <div>Content 2</div>
</div>

<script>
    var tabStrip = $("#tabstrip").kendoTabStrip().data("kendoTabStrip");
    tabStrip.remove("li:first"); // added line
    tabStrip.append(
        [{
            text: "<b>Appended Tab 1</b>",
            encoded: false,
            content: "Appended Tab 1 content",
        },
]
    );
</script>
</body>
</html>

  

Hi,

With the latest release of Kendo UI 2020.3.1118; the insertBefore/insertAfter methods of the tabStrip are removing the previous page tab content; works as expected in Kendo UI 2020.3.1021

Example - Select Inserted item, then select Baseball tab; Dojo Example

 

After insertBefore:

 

 

 

When focusing the comopnent a visual indication aims to show the user that something has changing during keyboard navigation. In the TabStrip there is no such indication. This also violates WCAG 2.4.7.

https://demos.telerik.com/kendo-ui/tabstrip/keyboard-navigation

The TabStrip loading from Ajax (LoadFromContent) only supports GET method.   This is shortsighted as quite often some content needs to be delivered via HttpPost.   For the MVC component it should also support sending the model (so a partialView can be returned from the Controller).

At the moment, the tab strip renders the classes and elements that provide the scrollable functionality only on initial render.

Changing this configuration should be possible through the .setOptions() method, something like: https://dojo.telerik.com/@bratanov/EwoXAJuB

It should be possible to use a SlideIn animation in addition to the already-supported expand:vertical and fadeIn animations.

I'm working with a case where the text for the tab label is already HTML formatted. The TabStrip is bound to a DataSource object, allowing me to specify the text and value fields. However, I cannot specify whether the title is encoded or not.

Currently, the workaround is to use javascript to modify the HTML of the tab label after it has been rendered (http://dojo.telerik.com/UXuTE), but having a way to specify which data field to map to the encoded property would be much simpler (see above dojo for and example).

For the love of God please add this capability so people don't have to try and figure out all the different ways to do this either via MVC, AngularJS or just plain HTML5.  You guys strain at a gnat and swallow a camel and it really ticks me off sometimes - you spend all this time creating a nice excel js object for the kendo toolkit but you can be bothered to spend the time to allow auto-creation of tab close button for the tabstrip.  Trying to figure this out using an angular controller has proven to be a pain in the a$$ because your angular examples such to put it lightly!

Allow to edit tab(TabStrip) header name directly like when I double click or right click on any tab I can edit its name and on lost focus event it should save in database directly.

It would be nice to have methods to expand and collapse the tabstrip as the user does by clicking the tab header (if collapsible is enabled).
Also events should be triggered, every time the tabstrip expands or collapses.

Add ability to pass dynamic parameters for load on demand tabs - 
similar functionality to the DataSource Read Data option which allows additional parameters to be returned via a javascript function.