Blazor form Validation should have IsValid() method

[PersyJack]

Currently a form can be validated with editContext.Validate() but that's not always the desired way to know if the form is valid. For example, according to docs [https://docs.microsoft.com/en-us/aspnet/core/blazor/forms-validation?view=aspnetcore-5.0#enable-the-submit-button-based-on-form-validation-1], enabling submit button upon field change has this side effect:

A side effect of the preceding approach is that a validation summary (ValidationSummary component) is populated with invalid fields after the user interacts with any one field.

The ValidationMessages errors appear even if the inputs are NOT marked modified (if they are required but untouched, which is correct during full validation)

The document suggest hiding ValidationSummary with a parameter but if the user is using ValidationMessages, then all inputs errors are triggered. MessageStore.Clear() does not clear these errors because it doesn't interact with fieldstate of editcontext.

If the user just wants to know if the form is valid at a given time (i.e. OnFieldChange) there should be a method returning a bool without actually triggering errors. EditContext has GetValidationMessages method but that's based on previous validation request.

If we can have an IsValid method or change MessageStore.Clear method to clear EditContext fieldstates then this can be archived.

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.

[mkArtakMSFT]

Thanks for contacting us.
If you're requesting a specific API, please file a new issue based on the API Proposal template, as that has many details that we need.

[mkArtakMSFT]

If you do so, please close this issue. Otherwise, we'll look at this in the future, after getting more customer feedback.

[PersyJack]

I'm closing this as this is already requested with #31252