FluentValidation具体使用案例

可以使用NuGet 添加类库

 

下面是程序：

using FluentValidation; using System; using System.Linq;

namespace TestFluentValidation {

class Program     {

static void Main(string[] args)

{

　　var orders = new Orders() { DisCount = 2,

　　  CustomerID = "1",

　　  OrderDate = DateTime.Now.AddDays(-1).Date

};

IValidator validator = new OrdersValidator();

var results = validator.Validate(orders);

var validationSucceeded = results.IsValid;

var failures = results.Errors;

Console.WriteLine(failures.Any(t => t.PropertyName == "CustomerID"));

Console.WriteLine(failures.Any(t => t.PropertyName == "DisCount"));

Console.WriteLine(failures.Any(t => t.PropertyName == "OrderDate.Date"));

failures.ToList().ForEach(t => Console.WriteLine(t.ErrorMessage));

Console.Read();

}

}

public class Orders     {

public int ID { get; set; }

public string CustomerID { get; set; }

public decimal DisCount { get; set; }

public DateTime OrderDate { get; set; }

}

public class OrdersValidator : AbstractValidator<Orders>

{

public OrdersValidator()

{

RuleFor(orders => orders.CustomerID).NotEmpty().Length(2, 20).WithName("CustomerID");

RuleFor(orders => orders.DisCount).GreaterThanOrEqualTo(0).LessThan(1).WithMessage("discount must between 0 and 1!");

RuleFor(orders => orders.OrderDate.Date).GreaterThanOrEqualTo(DateTime.Now.Date).WithName("Order Date");

}

}

}