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Request a Feature Report a Bug
Completed
Last Updated: 25 Dec 2024 07:53 by ADMIN
Release 7.0.0
Scott
Created on: 23 Oct 2024 15:08
Category: UI for Blazor
Type: Bug Report
2
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

8 comments
ADMIN
Dimo
Posted on: 25 Dec 2024 07:53

Hi Prashant,

OK, thanks for the follow-up. I have an idea about this issue and will check it after the holidays.

Regards,
Dimo
Progress Telerik

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Prashant
Posted on: 24 Dec 2024 15:15

After using 7.0.0 => TypeError: Cannot read properties of undefined (reading 'visible') is gone.

But while doing sorting on blazor grid quickly on 2,3 columns. Getting similar kind of error, which is pasted below.

TypeError: Cannot read properties of undefined (reading 'anchor')
  Message=
  Source=
  StackTrace:
  at t.8219.constructor.closePopup (https://blazor.cdn.telerik.com/blazor/7.0.0/telerik-blazor.min.js:22:1597184)
    at t.8219.constructor.onMouseDown (https://blazor.cdn.telerik.com/blazor/7.0.0/telerik-blazor.min.js:22:1595916)
ADMIN
Dimo
Posted on: 23 Dec 2024 05:34

Hi Prashant,

Please see the status messages at the top of each public item. In this case, they read:

Regards,
Dimo
Progress Telerik

Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher.

Prashant
Posted on: 20 Dec 2024 16:36

When will the fix available ?

Please confirm the date.

ADMIN
Hristian Stefanov
Posted on: 01 Nov 2024 14:32

Hi Todd,

I can confirm that this fix is scheduled for the middle of this month.

Regards,
Hristian Stefanov
Progress Telerik

Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher.

Todd
Posted on: 01 Nov 2024 14:21

We are also having the same issue.  Do you have an ETA on when the fix will be available?

 

Thanks

sira
Posted on: 25 Oct 2024 07:59

Exactly the same thing happens to me.

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
Progress Telerik

Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher.

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