自定义验证以比较时间

Question

试图让我的模型验证时间，即结束时间是＆gt;开始时间或者如果填充了一个，那么另一个必须填充。

到目前为止，我有：

模型

    public int ID { get; set; }        
    [DataType(DataType.Time, ErrorMessage = "Incorrect format or missing date")]
    [DisplayName("MondayStart")]
    public DateTime? MondayStart { get; set; }
    [DataType(DataType.Time, ErrorMessage = "Incorrect time")]
    [DisplayName("MondayEnd")]
    [GreaterThanAtt("MondayStart", "MondayEnd", ErrorMessage = "Incorrect format or missing date")]

GreaterThanAtt类

    using System;
using System.ComponentModel.DataAnnotations;
using System.Globalization;

namespace OrwellFrontEnd.CompareAtt
{
    public class GreaterThanAtt : ValidationAttribute
    {
        public DateTime _End { get; set; }
        public DateTime _Start { get; set; }

        public GreaterThanAtt (string Start, string End)
        {
            _Start = DateTime.ParseExact(Start, "HH:mm", CultureInfo.InvariantCulture); //Convert.ToDateTime(Start);
            _End = DateTime.ParseExact(End, "HH:mm", CultureInfo.InvariantCulture); // Convert.ToDateTime(End);
            //return DateTime.Compare(this._End, Convert.ToDateTime(_Start)) > 0;                      

        }
        public override bool IsValid(object value)
        {
            if (value != null && DateTime.Compare(_End, _Start) > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
    }

}

查看

<div style="display: table-row;">
                <div class="div-label-text" , style="display: table-cell"> @Html.LabelFor(model => model.MondayStart) </div>
                <div class="div-EditorFor" , style="display: table-cell"> @Html.EditorFor(model => model.MondayStart, new { htmlAttributes = new { @class = "div-form-control", id = "txtMondayStart" } }) </div>
                <div class="div-val-cell" , style="display: table-cell"> @Html.ValidationMessageFor(model => model.MondayStart, "", new { @class = "text-danger" }) </div>
                <div class="div-label-text" , style="display: table-cell"> @Html.LabelFor(model => model.MondayEnd) </div>
                <div class="div-EditorFor" , style="display: table-cell"> @Html.EditorFor(model => model.MondayEnd, new { htmlAttributes = new { @class = "div-form-control", id = "txtMondayEnd" } }) </div>
                <div class="div-val-cell" , style="display: table-cell"> @Html.ValidationMessageFor(model => model.MondayEnd, "", new { @class = "text-danger" }) </div>
            </div>

不确定代码是否可行，但现在它已经更改了视图页面，所以当我输入时间时它是一个自由文本..

以前它会显示 - ： - 输入时间，但是从结束日期开始，它要求您输入日期时间。