Nullable string property with [Url] attribute

[mcockrellsana]

Hello,

I noticed an issue with a nullable property for a URL editor field. if you define the property as such:

[Display(Name = "Link To External Url")]
[Url]
[PreviewDescription]
public string? Url { get; set; }

you should be able to have the Url field be empty or blank, however, once you enter data into the field on the UI, then clear it out, you receive the following validation error, not allowing you to save:

Is there anyway to circumvent this, to allow the field to accept the empty string. It seems like it probably and likely is just a bug with the front end validation for the URL control.

[HeyJoel]

Im not able to look i to it right now, but a quick search suggests that error is the dotnet serverside validator rather than the front-end. Cofoundry will process those server side as standard validation attributes and just show the result against the field, therefore you may be able to find a non-cofoundry workaround.