In Development
Last Updated: 19 Sep 2023 08:21 by ADMIN
Scheduled for 2023 R3 (11.10.2023)

Due to wrong project type detection, most of the menu and context menu commands are not available for web application projects.

The following commands are missing:

- Configure project
- Add [DPL] references
- Add Telerik Scenario...
- More Scenarios...
- the commands for individual scenarios
- the project context menu


The following commands are available but are not expected to be available:

- Create New Telerik Project

Under Review
Last Updated: 19 Sep 2023 08:08 by ADMIN
Scheduled for 2024 R1 - PI 1 (08.11.2023) SP1
Created by: Jae Hong
Comments: 0
Category: Installer and VS Extensions
Type: Bug Report

The menu commands for Telerik projects sometimes are not visible. The reason why is that the visibility state of the commands is evaluated asynchronously. Depending on the time it takes to evaluate the command state, sometimes the commands are not available when they are queried for the first time.

NOTE: It can be observed in all Telerik products.

Last Updated: 18 Sep 2023 11:57 by ADMIN

Setting EnableEmbeddedSkins="false" in RadGrid when FilterType="HeaderContext" is not applied to the ListBox (filterCheckList) hence the following error is thrown:

Telerik.Web.UI.RadGrid+RadListBoxShared with ID='filterCheckList' was unable to find an embedded skin with the name 'MY_THEME'   


Last Updated: 18 Sep 2023 07:38 by ADMIN

The submenu with filtering options has elements that overflow the sliding element:

Last Updated: 06 Sep 2023 15:29 by ADMIN
Release R3 2023

This issue is reproducible on your demo page:

  • Navigate to the sample drop down list control.
  • Open the list.
  • Select an item either by typing the first letter of an item or using the arrow keys.
  • Press the <Enter> or <Tab> key.

The expected behavior is the drop down list will close. It does not. However, if you collapse the list with the mouse or <Alt>+<Up Arrow> and then open the list again, the <Enter> and <Tab> keys will behave as expected.

As this problem is also present on your demo site, it is likely a bug with the RFD product and not our specific use case. If there is an update to the product or a JavaScript workaround, that would be greatly appreciated.

Last Updated: 06 Sep 2023 12:17 by ADMIN
Release R3 2023

The Timeline generated two duplicate span elements with the same ID:

<span id="ctl00_ContentPlaceholder1_RadTimeline1_WebServiceCDS" style="display:none;"></span>
<span id="ctl00_ContentPlaceholder1_RadTimeline1_WebServiceCDS" style="display:none"></span>

This can be seen in the Overview demo:

In Development
Last Updated: 05 Sep 2023 10:34 by ADMIN
Scheduled for R3 2023
The RadMultiSelect implementation has one error that WCAG 4.1.1 parsing is catching. There is a duplicate span with the same id.

Found in the page source of the demo page (similar to how I implemented as well):

<select name="ctl00$ContentPlaceholder1$RadMultiSelect1" multiple="" id="ctl00_ContentPlaceholder1_RadMultiSelect1" class="RadMultiSelect RadMultiSelect_Silk" style="width:400px;">
<span id="ctl00_ContentPlaceholder1_RadMultiSelect1_WebServiceCDS" style="display:none;"></span><input id="ctl00_ContentPlaceholder1_RadMultiSelect1_ClientState" name="ctl00_ContentPlaceholder1_RadMultiSelect1_ClientState" type="hidden" />
</select><span id='ctl00_ContentPlaceholder1_RadMultiSelect1_WebServiceCDS' style='display:none'></span>
Last Updated: 30 Aug 2023 09:41 by ADMIN
Created by: mathieu
Comments: 1
Category: DropDownList
Type: Bug Report

Hi Telerik team,

Using DropDownList with 4 items, setting visibility of the third one to false (either directly in apsx definition or setting it at page load event), display is OK, but when selecting the fourth and submitting the changes, server see the third one selected.

Attached is a project reproducing ths issue.

Last Updated: 28 Aug 2023 10:25 by Winnovate Tech.
Created by: Winnovate Tech.
Comments: 0
Category: DateRangePicker
Type: Bug Report
Clearing the dates in the DateRangePicker would not work for both StartDatePicker and EndDatePickers, only the EndDatePicker gets cleared.
Last Updated: 23 Aug 2023 14:41 by Karen
Due to recent changes to the keyboard accessibility of the RadMenu (i.e. it is now only accessible using the arrow keys instead of moving around using tabs), mega menus are no longer keyboard accessible.

We have designed a mega menu using a telerik RadSiteMap embedded in a RadMenu control, as suggested in the Telerik Demo site:

However, this is no longer accessible. Previously, you could open the dropdown by pressing the down button, then move around in the dropdown using tab. Now, however, pressing tab just closes the dropdown.

We need the menu to be accessible in one way or another.
Under Review
Last Updated: 14 Aug 2023 12:37 by ADMIN
When a RadGrid has the "AllowScroll" property set to True and is populated via a DataSourceID, calling the ExportToExcel() method on the grid results in the grid immediately rebinding. This undoes any changes made to the grid, like during the recommended way to export Template columns. When AllowScroll=False, the grid does not rebind and Template columns are exported, as expected.
Last Updated: 19 Jul 2023 11:08 by ADMIN

Code to replicate the issue:

<telerik:RadTabStrip RenderMode="Lightweight" ID="RadTabStrip1" runat="server" SelectedIndex="0">
    <KeyboardNavigationSettings CommandKey="Alt" FocusKey="M" />
        <telerik:RadTab Text="Examples">
        <telerik:RadTab Text="Configurator">
        <telerik:RadTab Text="Quick Start">
        <telerik:RadTab Text="Help">
        <telerik:RadTab Text="Purchase">

Last Updated: 18 Jul 2023 07:31 by ADMIN

When EnablePostBackOnRowClick="true" and clicking on the RadAutoCompleteBox inside the EditItemTemplate the Grid will make a PostBack.

This issue does not happen with other elements (span, input, button, etc).

Last Updated: 12 Jul 2023 15:23 by ADMIN
Created by: Pavlina
Comments: 6
Category: UI for ASP.NET AJAX
Type: Bug Report

Last Updated: 05 Jul 2023 11:57 by ADMIN
Release R2 2023 SP1
Created by: Doncho
Comments: 0
Category: UI for ASP.NET AJAX
Type: Bug Report
The behavior can be replicated in the Circular Gauge live demo by showing/hiding scale labels. Use the ScaleLabels Visible checkbox in the demo configurator.
Last Updated: 03 Jul 2023 15:48 by ADMIN
Release R2 2023 SP1
Created by: Rumen
Comments: 1
Category: UI for ASP.NET AJAX
Type: Bug Report

Bug report
It is not possible to print a PDF through the PDFViewer print tool on Desktop Chrome and Android Chrome.

Reproduction of the problem
Load PDFViewer Basic Usage demo and tap on Print tool -
Current behavior
Android - "There was a problem printing the page. Please try again." - no preview
Windows - the Print dialog shows and closes automatically

Expected/desired behavior
Print preview is available, allowing you to find a printer and print

Last Updated: 30 Jun 2023 12:58 by ADMIN
Release R2 2023 SP1

In our application we use ListBox with property EnableMarkMatches set. When we enter a search criteria with the keyboard you see in the selected rows the search criteria Bold. (See attached screenshot)

When u click with the mouse on this bold search criteria you get an error message in the console of the browser:


RadListBoxScripts.js:1223 Uncaught TypeError: Cannot read properties of null (reading 'get_enabled')

    at c.RadListBox._onClick (RadListBoxScripts.js:1223:6)

    at HTMLLIElement.<anonymous> (RadListBoxScripts.js:476:4)

    at HTMLDivElement.dispatch (jQuery.js:3:12445)

    at r.handle (jQuery.js:3:9174)


This issue is reproducible at

Last Updated: 27 Jun 2023 11:52 by ADMIN
Release R1 2023 SP1
When the FastNavigationPrevImage and NavigationPrevImage properties are set the font-icon based buttons are replaced with image buttons. However, the Prev and FastPrev-related images are missing the required float: left CSS setting and are rendered in the center of the calendar title bar.
Last Updated: 27 Jun 2023 11:47 by ADMIN
Release R2 2023
Created by: Stas
Comments: 0
Category: ListView
Type: Bug Report

Docs: Telerik.Web.UI.RadListViewFilterExpressionLogicBuilder class members

    .greaterThan("UnitPrice", 25)
    .lessThan("UnitsInStock", 40)
    .group(function (builder) {
        builder.notEqualTo("Discontinued", true)
            .startsWith("ProductName", "I");

Last Updated: 26 Jun 2023 20:50 by Sai
Release R2 2023 SP1

Uncaught TypeError: Failed to execute 'createObjectURL' on 'URL': Overload resolution failed error is thrown when pasting an image or a chart image from MS Word in RadEditor in Chrome / MS Edge.

The problem can be reproduced in the live demos too:

The error also prevents the execution of the OnClientPasteHtml event of the control.


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