关于数字问题的FluentValidation

Question

我在ASP.NET MVC 3应用程序中使用FluentValidation。

我有我的视图模型一个MaxNumberTeamMembers财产如：

/// <summary> 
/// Gets or sets the maximum number of team members. 
/// </summary> 
public int MaxNumberTeamMembers { get; set; } 

我想知道，如果下面的规则集是可能的：

• 在前端视图，如果文本框是空然后我想要显示“MaxNumberTeamMembers是必需的”消息
• 如果输入的数字小于1，那么我希望显示一条消息“MaxNumberTeamMembers应该大于或等于1”。

上面的规则集是什么样的？

我有以下的，但如果我输入0它不会对GREATERTHAN部分工作：

RuleFor(x => x.MaxNumberTeamMembers) 
    .NotEmpty() 
    .WithMessage("Max. number of team members is required") 
    .GreaterThan(0) 
    .WithMessage("Max. number of team members must be greater than 0"); 

更新2011-02-14：

RuleFor(x => x.MinNumberCharactersCitation) 
    .NotNull() 
    .WithMessage("Min. number of characters for citation is required") 
    .GreaterThanOrEqualTo(1) 
    .WithMessage("Min. number of characters for citation must be greater than or equal to 1") 
    .LessThanOrEqualTo(x => x.MaxNumberCharactersCitation) 
    .WithMessage("Min. number of characters must be less than or equal to max. number of characters"); 

Answer 1

如果你想处理 为空如果您的模型需要一个可为空的整数，否则它是默认的模型联编程序，它会在尝试解析空str时自动添加验证错误荷兰国际集团的非空整型：

public int? MaxNumberTeamMembers { get; set; } 

，然后你可能会对这个属性以下验证规则：

RuleFor(x => x.MaxNumberTeamMembers) 
    .NotEmpty() 
    .WithMessage("Max. number of team members is required") 
    .Must(x => x.Value > 0) 
    .When(x => x.MaxNumberTeamMembers != null) 
    .WithMessage("Max. number of team members must be greater than 0"); 

---

UPDATE：

的以下工作适用于最新版本的FluentValidation：

RuleFor(x => x.MaxNumberTeamMembers) 
    .NotNull() 
    .WithMessage("Max. number of team members is required") 
    .GreaterThan(0) 
    .WithMessage("Max. number of team members must be greater than 0"); 

Answer 2

它与FluentValidation版本3.2的工作

RuleFor(x => x.MaxNumberTeamMembers) 
    .NotNull() 
    .WithMessage("Please Enter Value") 
    .InclusiveBetween(1, 500) 
    .WithMessage("Value must be number Beetween 1 , 500");