我有“Expense”实体的以下验证类：
public class ExpenseBaseValidator : AbstractValidator<Expense>
{
public ExpenseBaseValidator()
{
RuleFor(x => x.Description).NotEmpty();
RuleFor(x => x.Amount).NotNull();
RuleFor(x => x.BusinessID).NotEqual(0).WithMessage("BusinessID is required.");
RuleFor(x => x.ExpenseTypeID).NotEqual(0).WithMessage("ExpenseTypeID is required.");
RuleFor(x => x.CreatedDate).NotNull();
RuleFor(x => x.Transaction).SetValidator(new TransactionValidator());
}
}
然后我有Transaction的验证类，它是上面Expense类中的复杂属性：
public class TransactionBaseValidator : AbstractValidator<Transaction>
{
public TransactionBaseValidator()
{
RuleFor(x => x.BankAccountID).NotEqual(0).WithMessage("BankAccountID is required.");
RuleFor(x => x.EmployeeID).NotEqual(0).WithMessage("EmployeeID is required.");
RuleFor(x => x.TransactionDate).NotNull();
RuleFor(x => x.IsWithdrawal).NotNull();
RuleFor(x => x.Amount).NotNull();
RuleFor(x => x.Description).NotEmpty();
RuleFor(x => x.PaymentMethod).NotEmpty();
RuleFor(x => x.PaymentMethod).Length(0, 50).WithMessage("PaymentMethod can not exceed 50 characters");
}
}
现在这些是基类，我分别使用以下子类调用验证器：
public class ExpenseValidator : ExpenseBaseValidator
{
public ExpenseValidator()
: base()
{
RuleFor(x => x.Transaction)
.NotNull()
.When(x => x.IsPaid == true)
.WithMessage("An account transaction is required when the amount is paid.");
RuleFor(x => x.DatePaid)
.NotNull()
.When(x => x.IsPaid == true)
.WithMessage("Please enter the date when the expense was paid.");
}
}
和Transaction子类：
public class TransactionValidator : TransactionBaseValidator
{
public TransactionValidator() : base()
{
}
}
这些可以有额外的验证规则，并且使用base()构造函数调用基本规则。
我使用以下方法验证Expense对象：
var validator = new ExpenseValidator();
var results = validator.Validate(oExpense);
现在，这不会返回我正在使用的复杂属性事务的验证：
oExpense.Transaction = new Transaction();
oExpense.Transaction.Amount = oExpense.Amount;
oExpense.Transaction.BankAccountID = ddlAccounts.SelectedItem.Value.ToInt();
oExpense.Transaction.TransactionDate = oExpense.DatePaid.Value;
oExpense.Transaction.IsWithdrawal = true;
oExpense.Transaction.Description = oExpense.Description;
oExpense.Transaction.IsDeleted = false;
// I dont set the below and it should give me validation error:
// oExpense.Transaction.EmployeeID = 10;
我没有设置EmployeeID，当我为cost对象调用validator时它应该给我验证错误，因为它对Transaction属性有SetValidator()而且Transaction也不是null，因为我已经设置{{1 }}
有什么想法吗？
答案 0 :(得分：0)
我使用了您发布的验证，并根据验证器中包含的内容创建了相关的类/属性。从发布的示例中构建Transaction对象，我收到以下验证错误：
在var results = validator.Validate(oExpense);上放置一个断点并验证oExpense.Transaction.EmployeeID的值。 如果该值不为0，则在其他位置设置EmployeeID。
供参考，这是我创建的基本控制台应用程序：
using System;
using System.Linq;
using FluentValidation;
using FluentValidation.Results;
namespace so.FluentValidationComplexProperties
{
internal class Program
{
private static void Main( string[] args )
{
var oExpense = new Expense();
oExpense.Transaction = new Transaction();
oExpense.Transaction.Amount = oExpense.Amount;
oExpense.Transaction.BankAccountID = 10;
oExpense.Transaction.TransactionDate = DateTime.Today;
oExpense.Transaction.IsWithdrawal = true;
oExpense.Transaction.Description = oExpense.Description;
oExpense.Transaction.IsDeleted = false;
// I dont set the below and it should give me validation error:
// oExpense.Transaction.EmployeeID = 10;
var validator = new ExpenseValidator();
ValidationResult results = validator.Validate( oExpense );
results.Errors.ToList().ForEach( Console.WriteLine );
Console.WriteLine();
Console.Write( "--done--" );
Console.WriteLine();
Console.ReadLine();
}
}
public class ExpenseBaseValidator : AbstractValidator<Expense>
{
public ExpenseBaseValidator()
{
RuleFor( x => x.Description ).NotEmpty();
RuleFor( x => x.Amount ).NotNull();
RuleFor( x => x.BusinessID ).NotEqual( 0 ).WithMessage( "BusinessID is required." );
RuleFor( x => x.ExpenseTypeID ).NotEqual( 0 ).WithMessage( "ExpenseTypeID is required." );
RuleFor( x => x.CreatedDate ).NotNull();
RuleFor( x => x.Transaction ).SetValidator( new TransactionValidator() );
}
}
public class TransactionBaseValidator : AbstractValidator<Transaction>
{
public TransactionBaseValidator()
{
RuleFor( x => x.BankAccountID ).NotEqual( 0 ).WithMessage( "BankAccountID is required." );
RuleFor( x => x.EmployeeID ).NotEqual( 0 ).WithMessage( "EmployeeID is required." );
RuleFor( x => x.TransactionDate ).NotNull();
RuleFor( x => x.IsWithdrawal ).NotNull();
RuleFor( x => x.Amount ).NotNull();
RuleFor( x => x.Description ).NotEmpty();
RuleFor( x => x.PaymentMethod ).NotEmpty();
RuleFor( x => x.PaymentMethod ).Length( 0, 50 ).WithMessage( "PaymentMethod can not exceed 50 characters" );
}
}
public class ExpenseValidator : ExpenseBaseValidator
{
public ExpenseValidator()
: base()
{
RuleFor( x => x.Transaction )
.NotNull()
.When( x => x.IsPaid )
.WithMessage( "An account transaction is required when the amount is paid." );
RuleFor( x => x.DatePaid )
.NotNull()
.When( x => x.IsPaid )
.WithMessage( "Please enter the date when the expense was paid." );
}
}
public class TransactionValidator : TransactionBaseValidator
{
public TransactionValidator()
: base() {}
}
public class Expense
{
public string Description { get; set; }
public decimal? Amount { get; set; }
public int BusinessID { get; set; }
public int ExpenseTypeID { get; set; }
public DateTime CreatedDate { get; set; }
public Transaction Transaction { get; set; }
public bool IsPaid { get; set; }
public DateTime DatePaid { get; set; }
}
public class Transaction
{
public int BankAccountID { get; set; }
public int EmployeeID { get; set; }
public DateTime TransactionDate { get; set; }
public bool? IsWithdrawal { get; set; }
public decimal? Amount { get; set; }
public string Description { get; set; }
public string PaymentMethod { get; set; }
public bool IsDeleted { get; set; }
}
}