In Development
Last Updated: 24 Oct 2024 06:57 by ADMIN
Scheduled for 2024 Q4 (Nov)
Scott
Created on: 23 Oct 2024 15:08
Category: UI for Blazor
Type: Bug Report
0
JavaScript error on mouse move during page or component load

Good Morning,

I have recently started getting random and repeated Javascript errors when debugging my project using your controls for Blazor.  It is completely random (sometimes happens immediately at project start, sometimes when navigating to a new page, sometimes when interacting with a control).  It is ALWAYS the same error....

TypeError: Cannot read properties of undefined (reading 'visible') 

Message=
  Source=
  StackTrace:
  at __webpack_modules__.8219.constructor.onMouseEnter (https://localhost:44307/_content/Telerik.UI.for.Blazor/js/telerik-blazor.js?v=ITaQSsBTBmdJoUpPr2KiZ7JwhfKjwa7SGa6zvlv9kkU:50:1442661)

I am using the most current version of your product.  I have gone through your "Javascript Errors" page and have worked through all the suggestions.  Nothing resolves it.

This is becoming a giant time sink while trying to work on a project.  What can we do to get appropriate error handling on your end to prevent these issues?

Thanks

1 comment
ADMIN
Dimo
Posted on: 24 Oct 2024 06:57

Hi Scott,

I apologize for the trouble that has taken up of your time.

The error occurs in the Tooltip component, which tries to check the state of its popup instance before the popup instance is created. This can happen if you are moving the mouse while the Telerik components are still initializing in the browser.

I confirm that I reproduced the described problem and a fix is already awaiting approval. I have awarded you some Telerik points for the bug report.

Regards,
Dimo
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