Awesome
<img src="https://raw.githubusercontent.com/JeremySkinner/FluentValidation/master/docs/assets/images/logo/fluent-validation-logo.png" alt="FluentValidation" width="250px" />This is Fork of original FluentValidation with support .NET 3.5 Framework
A small validation library for .NET that uses a fluent interface and lambda expressions for building validation rules.
Get Started
FluentValidation can be installed using the Nuget package manager or the dotnet
CLI.
Install-Package FluentValidation.NET35
For ASP.NET Core integration:
Install-Package FluentValidation.AspNetCore.NET35
For legacy ASP.NET MVC/WebApi integration:
Install-Package FluentValidation.MVC5.NET35
Install-Package FluentValidation.WebApi.NET35
FluentValidation | ||
FluentValidation.AspNetCore | ||
FluentValidation.Mvc5 | ||
FluentValidation.WebApi |
Example
using FluentValidation;
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
}
}
var customer = new Customer();
var validator = new CustomerValidator();
ValidationResult results = validator.Validate(customer);
bool success = results.IsValid;
IList<ValidationFailure> failures = results.Errors;