Need More Info
Last Updated: 20 Oct 2022 08:23 by ADMIN


I'm facing JavaScript issues after enabling "Telerik.ScriptManager.EnableHandlerEncryption" on Web.config,

I've just followed Encrypt Telerik WebResource Querystring in order to hide the Telerik version.

After this the RadMenu breaks when i do a PostBack action (by pressing a button), the console outputs the same error when hovering a RadMenuItem and the submenus has stop being displayed.

The console error:

Uncaught TypeError: Cannot read properties of null (reading 'apply')
  at Type.callBaseMethod (Telerik.Web.UI.WebRe...=:6:7353)
  at c.RadMenuItem._createChildControls (Telerik.Web.UI.WebRe...=:5300:49)
  at c.RadMenuItem._ensureChildControls (Telerik.Web.UI.WebRe...=:2770:72)
  at c.RadMenuItem._getChildren (Telerik.Web.UI.WebRe...=:2768:32)
  at c.RadMenuItem.get_items (Telerik.Web.UI.WebRe...=:3552:36)
  at c.RadMenuItem._onItemMouseOver (Telerik.Web.UI.WebRe...=:4159:8)
  at Telerik.Web.UI.EventMap._onDomEvent (Telerik.Web.UI.WebRe...=:3289:6)
  at HTMLDivElement.<anonymous> (Telerik.Web.UI.WebRe...=:6:307)
  at HTMLDivElement.b (Telerik.Web.UI.WebRe...=:623:53)

I've tested this error with version 2020.2.617.45 and 2022.3.913 but the same problem.

Looking in the forum i've found this post with a related issue also a reply has a reference to a private feedback and this last one seems to be the same or almost the same problem, so i've tried to follow the workaround on "global.asax" file and "Page_Load" on the master page without luck.

The steps i've follow:

  • Enabling "Telerik.ScriptManager.EnableHandlerEncryption".
  • Site seems working correctly.
  • I press a RadButton inside a RadAjaxPane.
  • Response from server is OK.
  • Then i hover the cursor on RadMenuItems on RadMenu.
  • Console starts to show the related error explaining above.
  • RadMenu stops to present the submenus completely.

I'd like to have another way to workaround this in order to make RadMenu work properly again and keep Telerik version hidden.


Need More Info
Last Updated: 09 Sep 2022 12:11 by ADMIN
Created by: eDAD
Comments: 1
Category: UI for ASP.NET AJAX
Type: Bug Report

Test Environment:

OS: Windows_11

Version: 22H2
OS Build: 22598.200
Browser: Version 104.0.1293.70 (Official Build) (64-bit)
  1. Open URL:   page in Edge Browser.
  2. TAB to the grid container.
  3. Observe the issue that the grid container is receiving focus.

Actual Behavior:

Focus moves on non-interactive controls.

Expected Behavior:

Focus shouldn't go to the non-interactive element in table content.

Need More Info
Last Updated: 02 Aug 2022 15:28 by ADMIN


OS: Windows_11
Version: 21H2
OS Build: 22000.795
Browser: Version 103.0.1264.71 (Official build) (64-bit)

Screen Reader: NVDA (2021.3)


1. Open URL Telerik Web UI Grid Overview Demo | Telerik UI for ASP.NET AJAX page in edge browser and turn on NVDA.

2. Navigate to next/previous controls in browse mode on the over view page.

3. Observe the issue.


In browse mode, name property is not announced by the screen reader for next/previous buttons.


In browse mode, Screen reader should announce a name p:roperty 'First, Next, Previous and Last page' for the controls.


Need More Info
Last Updated: 26 Nov 2021 10:23 by ADMIN
Created by: Anders Mad.
Comments: 1
Category: Grid
Type: Bug Report


Heres a simple one: I have a dynamic grid `MasterTableView.EnableColumnsViewState = false;` on page init and all works fine. However, when the client/browser show a dynamic column thats hidden (or vise versa), and the column is gone on postback (being a dynamic grid this can happen), the LoadClientState tries to get the column - and if it fails to, it breaks down hard.. Instead it should just ignore it, as its just a pretty un-important show/hide state.

Your RadGrid code goes something like this:

LoadClientState ->
if (clientState.ContainsKey("showedColumns")) ->
control.GetColumn(columnUniqueName).Display = true; <-- just ignore this if not found - also on the others like hide, resize etc.


Thank you!... +1 for making this html editor a MD flavor instead :)


Need More Info
Last Updated: 03 Nov 2021 12:18 by ADMIN
Created by: John
Comments: 1
Category: Grid
Type: Feature Request

Noticed that when using a template to custom define the pager look, the pager gets rendered in a TD and not a TH as expected since the pager is in a THEAD.  Could the header pager only be modified to render in TH?  This would allow all elements in the header to render the same and help with styling.