FluentValidation.AspNetCore-验证规则库

Install-Package FluentValidation -Version 10.3.3



#For integration with ASP.NET Core, install the FluentValidation.AspNetCore package from Visual Studio:

Install-Package FluentValidation.AspNetCore -Version 10.3.3

public class CustomerValidator : AbstractValidator<Customer> {
public CustomerValidator() {
RuleFor(x => x.Surname).NotEmpty();
RuleFor(x => x.Forename).NotEmpty().WithMessage("Please specify a first name");
RuleFor(x => x.Discount).NotEqual(0).When(x => x.HasDiscount);
RuleFor(x => x.Address).Length(20, 250);
RuleFor(x => x.Postcode).Must(BeAValidPostcode).WithMessage("Please specify a valid postcode");
}
private bool BeAValidPostcode(string postcode) {
// custom postcode validating logic goes here
  }
}