After upgrading from 2019 to 2025.4.1210.462, I am experiencing a JavaScript error when my ASP.NET Web Forms application is opened from Encompass Desktop (embedded browser). The same pages work in modern browsers (Chrome/Edge), but fail inside Encompass.

Environment
Product: Telerik UI for ASP.NET AJAX
Version: 2025.4.1210.462
.NET Framework: 4.8
App type: ASP.NET Web Forms
IIS: Integrated pipeline
Host path: /MyService/
Controls used: RadScriptManager, RadAjaxManager, RadGrid, RadComboBox, RadAjaxPanel, etc.
Entry page from Encompass: Validation.aspx (standalone page, not using a master page)
Telerik CDN: Disabled
RadScriptManager: EnableScriptCombine="false"

Error
When opening MyService from Encompass Desktop, users see:

An error has occurred in the script on this page.

Line: 1
Char: 173461
Error: Invalid character
Code: 0
URL: /MyService/ScriptResource.axd?d=...

What we found
When inspecting the script response, we see modern JavaScript syntax that appears incompatible with the Encompass embedded browser (IE-like engine), for example:

_renderActiveItemStyle:function(e){
  var t=this.get_owner().get_id(),
  i=`${t}_ActiveItemStyle`;
  ...
  e=e.replaceAll(";"," !important;");
  ...
}

It looks like ES6 template literals and replaceAll() are causing a parse error in the embedded browser.

Questions
1) Is Q1 2025 officially unsupported in Internet Explorer/embedded WebBrowser-style hosts such as Encompass Desktop?
2) Is the _renderActiveItemStyle function with template literals expected in Q1 2025 RadGrid scripts?
3) Is there any supported configuration to serve IE-compatible JavaScript while staying on Q1 2025?
     e.g. OutputCompression, CDN, RenderMode, legacy script bundle, etc.
4) If not, what is the recommended Telerik version for IE/embedded browser scenarios - is R3 2022 SP1 (2022.3.1109) the last supported release?

Hello, I am trying to locate the checksum for the Progress Control Panel installer but it doesn't seem to be on the download page. Would anyone know where that may be available at? 

 

MSI (s) (F0:0C) [13:22:43:458]: MainEngineThread is returning 1620
This installation package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer package.
C:\WINDOWS\Installer\1eb8b829.msi
MSI (s) (F0:38) [13:22:43:459]: User policy value 'DisableRollback' is 0
MSI (s) (F0:38) [13:22:43:459]: Machine policy value 'DisableRollback' is 0

Trying to install into VS 2022.

Rob.

Hi,

I'am frequently getting emails of new blogs and advertisement without any link or chance to unsibscribe.

I couldn't also find any option to unsibscribe in my account settings.

Please remove me from all your maling lists.

 

Thanks

Timo

As the title suggest, when I install Terlik controls by running the control panel as a local administrator account, the tools don't properly setup in Visual Studio 2017 for my standard account.

Due to company policy, installations on our desktop have to be completed with an administrator account different than our regular user account.    So, the only way for me to install the tools is via a different account.   This installation "works", and all Telerik is installed on my desktop, but Visual Studio does not recognize Telerik when I run my standard account which is used for development (see "StandardView.jpg" attached).

If I run Visual studio under the administrator account, the Telerik menus, toolbars, etc.. show up in Visual Studio (see "RunAsAdmin.jpg" attached), but then I am unable to develop due to our security policy restrictions.  I have to develop in an account different than this administrator account, but cannot with the Telerik tools.

Is there a method to make this automatically install for my standard account as well when installing with the admin account?

 

Thanks,

Russell

Hello,

 

I want to use custom button in telerik Radgrid. can you please let me know how to use it on client side and how to get value on server side?

When I click on custom button that time open one dialog box with generate dynamically textboxes.

Following this code sample to grab filtered data: https://docs.telerik.com/blazor-ui/knowledge-base/grid-get-filtered-data

As per description this should return all filtered data, however it does not, it only returns filtered results that are shown on the current page, if you move to the next page it will get next page's results and so on, instead of getting entire filtered data set.

Is there any way to get entire filtered data set?

Thanks.

Hello,

I am trying to learn how to use Visual studio to Manipulate test studio test.

I followed instructions from this link https://docs.telerik.com/teststudio/features/test-maintenance/export-visual-studio

When i choose to open the file in Visual studio i get error i click ok and nothing visually happens in visual studio.

if I open the .csproj file directly in visual studio i just see XML skeleton.

 

I have added some screen shots so that you can perhaps understand what im trying to do.

My team has 2 applications using Telerik.UI.for.AspNet.Core, one is using v2020.3.1118 and the other is using v2021.1.119.  Each application up until now was worked on by 2 different developers, but now one developer has been assigned both applications.  

The developer was originally working with v2020.3.1118 and has that installed on his machine via control panel.  Now that he has been assigned the application with v2021.1.119, he can't build it until he installs the new version via control panel.  The problem is that he has to uninstall the older version when the new version is installed (control panel seems to force this). 

Is there something we are missing here, it seems odd to only allow one version to be installed at a time.  We cannot update the older version to the newer without triggering a full QA regression (both manual and automated) that takes several weeks to complete before it goes into our release pipeline. 

Thanks

 

 

Scan.cshmtl via View:

@(Html.Kendo().Grid<Main_Kendo.Models.ScannerViewModel>()                <---  Html.Kendo gets red underline error ??? 

.Name("Grid")         

.Columns(columns =>         

{             

columns.Bound(b => b.Scan).Width(140);             

columns.Bound(b => b.BarcodeImage).Width(140);             

columns.Bound(b => b.DropZone).Width(140);             

columns.Bound(b => b.EnteredBy).Width(100);             

columns.Bound(b => b.EnteredDate).Width(130);             

columns.Command(command => command.Destroy()).Width(110);         

})

Whatever below.... 

)

 

The error message:

HtmlHelper <dynamic> doesn't contain a definition for Kendo and no accessible extension method for 'Kendo' accepting a first argument of type HtmlHelper

Already have ScannerViewModel in Models folder, Kendo.Mvc was missing references that I added.