DatePickerFor not working with newer versions

[Prabhat]

DatePickerFor does not work with any versions newer than 2025-2-702. As a result, we cannot upgrade our telerik version to newer versions. Non model bound DatePicker works. When using DatePickerFor, it completely stops rendering the date picker and subsequent html.

[Ivaylo]

Hello,

Based on your description, the issue with DatePickerFor not rendering in Telerik UI for ASP.NET Core versions newer than 2025.2.702 is most likely caused by a duplicate jQuery reference in your application layout. When jQuery is loaded more than once, it can clear all jQuery plugins, including Kendo UI components, resulting in widgets not rendering and potentially breaking subsequent HTML.

Steps to Resolve:

• Open your _Layout.cshtml (or equivalent layout file) and check for multiple <script src="...jquery..."> references.
• Remove any duplicate jQuery reference, especially those located near the bottom of the layout (often below the <footer> element).

Example:

<!-- Ensure this reference appears only once in your layout -->
<script src="~/lib/jquery/dist/jquery.min.js"></script>

Additional Information:

• The non-model bound DatePicker works because it may be initialized before the duplicate jQuery reference is loaded, so it is not affected.
• After removing the duplicate reference, DatePickerFor should render correctly and allow you to use newer Telerik UI versions.

Next Steps:

• If the issue persists after ensuring only a single jQuery reference, please provide:
  • The exact version of Telerik UI for ASP.NET Core you are using.
  • Any error messages from the browser console.
  • Details about your project setup (e.g., MVC or Razor Pages).
• This information will help me investigate further and provide a more accurate solution.

Let me know if you need more help or have additional questions.

Regards,
Ivaylo
Progress Telerik