Breaking News: Grepper is joining You.com. Read the official announcement!

asp.net core fluent validation

Add Answer

Huseyn Jafarov answered on June 3, 2023 Popularity 9/10 Helpfulness 1/10

answer asp.net core fluent validation

related asp.net core fluent validation

asp.net core fluent validation

Comment

Fluent Api Controller

public class PeopleController : Controller 
{
  private IValidator<Person> _validator;
  private IPersonRepository _repository;

  public PeopleController(IValidator<Person> validator, IPersonRepository repository) 
  {
    // Inject our validator and also a DB context for storing our person object.
    _validator = validator;
    _repository = repository;
  }

  public ActionResult Create() 
  {
    return View();
  }

  [HttpPost]
  public async Task<IActionResult> Create(Person person) 
  {
    ValidationResult result = await _validator.ValidateAsync(person);

    if (!result.IsValid) 
    {
      // Copy the validation results into ModelState.
      // ASP.NET uses the ModelState collection to populate 
      // error messages in the View.
      result.AddToModelState(this.ModelState);

      // re-render the view when validation failed.
      return View("Create", person);
    }

    _repository.Save(person); //Save the person to the database, or some other logic

    TempData["notice"] = "Person successfully created";
    return RedirectToAction("Index");
  }
}

Popularity 9/10 Helpfulness 1/10 Language csharp

Source: docs.fluentvalidation.net

Tags: asp.net-core c# fluent validation

Link to this answer
Share Copy Link

Contributed on Jun 03 2023

Huseyn Jafarov

0 Answers Avg Quality 2/10

Closely Related Answers

asp.net core fluent validation

Comment

Fluent Api

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
  }
}

Popularity 9/10 Helpfulness 2/10 Language csharp

Source: docs.fluentvalidation.net

Tags: asp.net-core asp.net-co

Link to this answer
Share Copy Link

Contributed on Jun 03 2023

Huseyn Jafarov

0 Answers Avg Quality 2/10

asp.net core fluent validation

Contents

More Related Answers

asp.net core fluent validation

Closely Related Answers

asp.net core fluent validation

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.