New Post: Client-Side validation against abstraction

@model Portal.Presentation.Models.IUserViewModel

  public interface IUserViewModel
    {
               
         string FirstName { get; set; }

    }

 public class UserValidator : AbstractValidator<IUserViewModel>
    {
        
        public UserValidator()
        {
            RuleFor(x => x.FirstName)
                .NotEmpty().Length(0, 50);
            
        }
        
    }