If you expand a tree node with 1000 items in it, and that tree has an ng-template the performance is very poor. It takes 7 seconds on my machine, see here https://www.telerik.com/forums/slow-treeview-with-large-datasets

Please add virtualisation to the TreeView so that not so many DOM elements (and therefore ng-templates) need to be created.

Currently, the arrow keys can be used for navigating through the ComboBox items and making a selection.

However, since the group headers cannot be selected with the arrow keys (unlike the list items), the user cannot reach the first group header when going back up with the arrow keys in cases when the headers are not sticky: 

It would be great if the first group header can be scrolled into view when navigating back up with the arrow keys.

Please provide a template for customizing the value appearance of the DropDownList control types in the toolbar of the Editor, similar to the one available for the default DropDownList component:

• https://www.telerik.com/kendo-angular-ui/components/dropdowns/dropdownlist/templates/#toc-value-template 

At present, the only approach that can be used for configuring a value template is by implementing a custom DropDownList tool in the toolbar of the Editor:

• https://www.telerik.com/kendo-angular-ui/components/toolbar/custom-control-types/ 

It will be a nice to have option if there is a way to debounce the filtering. 

Currently, when a MultiViewCalendar is rendered in the DateRange via kendoDateRangePopupTemplate, the adaptive mode of the DateRange does not reflect the templates defined for the MultiViewCalendar:

• https://stackblitz.com/edit/angular-v9fvvpzg

It would be great if the adaptive rendering of the DateRange could be enhanced to support the MultiViewCalendar templates. 

This will enhance the PDFViewer usability as the Toolbar provides many built-in features like responsiveness, tool customizations, etc., which will add extra value to the component.

The component is already used internally in the Editor and Spreadsheet.

I'd like to report that my issue linked in Duplicated item was not fixed: 

Closed bug: https://feedback.telerik.com/kendo-angular-ui/1484071-scheduler-event-editor-recurrence-editor

My bug marked as duplicate: https://feedback.telerik.com/kendo-angular-ui/1657303-scheduler-some-events-are-incorrectly-duplicated-despite-the-rules-written-on-them

 

It can still be reproduced in new version 17.3.12 

https://stackblitz.com/edit/angular-pusn73-en4gpcjt?file=src%2Fapp%2Fapp.component.ts

The event with recurreneRule that suggests that this event appears on each Tuesday till 20201014 is visible on Wednesday 14th.

The Scheduler Agenda view is cut when opened on a mobile device. The scheduler cannot be scrolled horizontally.

Please refer to the attached image.

Provide a way to be able to see all events in Agenda view on small resolutions.

The date format in the drag tooltip is hardcoded to "HH:mm a EEE, MMM d". We would like to be able to change this as it is not common to use the AM/PM marker in many cultures.

Hello,

When I try to delete all grouping manually by setting an empty group array, datas are disappearing. The grid datas are empty but reappears if I set grouping again. Also I could see data if I scroll down but I can't see any if I haven't enough lines to do so.

In attachment you could find a demo based on the "Collapse All with Grouping" tutorial.

Currently, the ComboBox only supports "starts with" suggestions. When users type to input, only items that begin with the entered text are matched and focused.

Workaround overriding the default behavior:

https://stackblitz.com/edit/angular-kex7yj5v

Reorder tabs with drag and drop like so: http://demos.telerik.com/kendo-ui/sortable/integration-tabstrip

Currently, it is not possible to enter a date that falls exactly on a Daylight Saving time.

Check the following example where it is not possible to enter 3 for the hours' section (it is also not possible to select 3 from the TimePicker popup):

https://stackblitz.com/edit/angular-nstdolh5-xfiws9nr

That behavior is expected as there is no such time in the Bulgarian time zone. Daylight saving time begins on 30 March 2025 03:00 when the time is moved 1 hour forward.

The demonstrated undesired behavior for the specific date will be reproducible only if the example is opened in the specified time zone. But the same behavior is valid for any other date that falls on Daylight Saving time in other time zones.

We should decide on what the expected behavior is for such cases. For example not allowing entering the value, displaying an error, auto-switching to the real hour (4 AM), etc.

Allow elements styled with mask-image and -webkit-mask-image to be exported correctly, preserving their masked appearance in images or other export formats.

https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Masking/Introduction

 

The sticky columns functionality is not working properly with multi-column headers (kendo-grid-column-group).

It would be a nice enhancement to provide support for such scenarios and perform the necessary internal calculations. That will ensure locking a group column will be working as expected.

Example of the current behavior - https://stackblitz.com/edit/angular-y2dtxq

Hello,

It would be great to have the same state management functionality in the TreeList component as provided for the Grid component.

https://www.telerik.com/kendo-angular-ui/components/grid/persist-state

As a minimum saving and restoring columns state (visibility, width, order, sort, ...) should be provided.

Best regards,
Holger

Add accessibility support and keyboard navigation to the Diagram component.

Hello,

we are searching for two components that we don’t find in your ANGULAR Library.

These components are:

• KANBAN Cards / TASK LISTS   
• Docking Manager

I have attached some print screens for existing components on the market...

Could you please check if there are any future/planned  developments concerning these two components with Telerik?

Thank you in advance…

Highlight the Filter option in the Column Menu when a filter is applied to the column, similar to how the Sorting option is highlighted. This helps users recognize when a filter is active and keeps the design consistent with the sorting highlight.

Workaround - https://stackblitz.com/edit/angular-2ugqhdk3

Current rendering:

Desired rendering: