如何对工作结束日期大于开始日期验证在ASP.NET MVC3

在查看如何对工作结束日期大于开始日期验证在ASP.NET MVC3

<td class="SrcFld"> 
     <div> 
     @Html.TextBox("BeginDate", Model.BeginDate)&nbsp; 
     @Html.RequiredFieldFor(model => model.BeginDate) 
     @Html.ValidationMessageFor(model => model.BeginDate) 
     To &nbsp; @Html.TextBox("EndDate", Model.EndDate) 
     @Html.RequiredFieldFor(model => model.EndDate) 
     @Html.ValidationMessageFor(model => model.EndDate) 
     </div> 
    </td>

在型号

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.ComponentModel; 
using System.ComponentModel.DataAnnotations; 
using Foolproof; 

namespace HPAI.HPA.Web.Models 
{ 
    public class UnEmploymentInputs : UserInputs 
    { 
     [Required] 
     public DateTime? BeginDate { get; set; } 
     [Required] 
     [GreaterThan("BeginDate", ErrorMessage = "End Date Should be Greater Than Begin Date.")] 
     public DateTime? EndDate { get; set; } 
     public decimal? NonEscrowTax { get; set; } 
     public decimal? NonEscrowInsurance { get; set; } 
     public bool? IsExtension { get; set; } 
     public bool? IsIncomeCircumstance { get; set; } 
    }

我的问题，的验证结束日期和开始日期必填字段working.but大于验证不工作。实际上，我正在使用“万无一失”验证。请帮助我out.Thanks！

来源

2012-01-26 user1169594