之前我介紹過了使用系統(tǒng)自帶的Data Annotations來進行數(shù)據(jù)有效性驗證，今天在CodePlex上逛的時候，發(fā)現(xiàn)了一個非常簡潔好用的庫：FluentValidation

由于非常簡潔，就直接拿官網(wǎng)的例子演示了：?

using FluentValidation;public class CustomerValidator : AbstractValidator<Customer>{public CustomerValidator(){RuleFor(customer => customer.Surname).NotEmpty();RuleFor(customer => customer.Forename).NotEmpty().WithMessage("Please specify a first name");RuleFor(customer => customer.Discount).NotEqual(0).When(customer => customer.HasDiscount);RuleFor(customer => customer.Address).Length(20, 250);RuleFor(customer => customer.Postcode).Must(BeAValidPostcode).WithMessage("Please specify a valid postcode");}private bool BeAValidPostcode(string postcode){// custom postcode validating logic goes here }}Customer customer = new Customer();CustomerValidator validator = new CustomerValidator();ValidationResult results = validator.Validate(customer);bool validationSucceeded = results.IsValid;IList<ValidationFailure> failures = results.Errors;

它還可以非常方便的與Asp.Net集成，用起來非常方便。官網(wǎng)的幫助文檔也非常詳盡，有數(shù)據(jù)有效性檢驗的朋友趕緊用起來把。

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