Visually indicate validation error e.g. mandatory file

[Dean]

Hi all.  

 

I am just wondering if anyone has any ideas for making it possible to visually indicate failed validation on an Upload control?

To be clear, I have the validation working, it's just that there is no visual clue to the problem - the upload control is not highlighted like other controls are.

I looked at the example at https://github.com/telerik/blazor-ui/tree/master/upload/form-validation but even on there, you can see the issue - name and email address are highlighted but CV is not.

 

Any thoughts for a workaround?

Thanks,

Dean

 

 

[Marin Bratanov]

Hello Dean,

There is no built-in validation for file uploads in the framework and so the Telerik component cannot have such an invalid state.

What you can do, however, is to set its Class conditionally to a CSS class in your app that you can cascade styles through (say, add a red border to the upload). You can base this condition on the flag that indicates whether its validation passes.

If you do that, feel free to open a pull request to add it to the sample, we award such contributions with Telerik points.

Regards,
Marin Bratanov
Progress Telerik