Customise validation css class names

[lonix1]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

For invalid form fields, the razor engine outputs hardcoded css class names: input-validation-error, input-validation-valid, field-validation-error, field-validation-valid, etc.

When using a ui library (bootstrap, tailwind, etc.) one needs different classes. For example, for bootstrap it's is-invalid, is-valid, invalid-feedback, valid-feedback, etc.

One can rename these in JS, but that is a hack. It also makes it very difficult to use various js libraries.

Describe the solution you'd like

Please allow us to customise those class names during startup.

Additional context

This problem goes back years. I realise that #8573 and #40935 are not going to be done in the short term.

So at least allow us to change the css class names, which will give us more flexibility for now.

[MackinnonBuck]

Thanks for reaching out.

We're going to use #8573 to track this, so closing this out as a duplicate.