64 lines
2.4 KiB
C#
64 lines
2.4 KiB
C#
using System;
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using System.ComponentModel.DataAnnotations;
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using System.Reflection;
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using System.Web.Mvc;
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namespace WX.CRM.Common.MvcValidation
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{
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/// <summary>
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/// 两个时间比较，结束时间不能小于开始时间
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/// </summary>
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[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
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public class DateTimeNotLessAttribute : ValidationAttribute, IClientValidatable
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{
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private const string DefaultErrorMessage = "{0}不得小于{1}";
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public string OtherDTProperty { get; private set; }
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private string OtherDTPropertyName { get; set; }
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public DateTimeNotLessAttribute(string otherDTProperty, string otherDTPropertyNamet)
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: base(DefaultErrorMessage)
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{
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if (string.IsNullOrEmpty(otherDTProperty))
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{
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throw new ArgumentNullException("otherDTProperty");
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}
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OtherDTProperty = otherDTProperty;
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OtherDTPropertyName = otherDTPropertyNamet;
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}
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public override string FormatErrorMessage(string name)
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{
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return string.Format(ErrorMessageString, name, OtherDTPropertyName);
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}
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protected override ValidationResult IsValid(object value, ValidationContext validationContext)
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{
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if (value != null)
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{
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PropertyInfo otherDTProperty = validationContext.ObjectInstance.GetType().GetProperty(OtherDTProperty);
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object otherDTPropertyValue = otherDTProperty.GetValue(validationContext.ObjectInstance, null);
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DateTime dtThis = Convert.ToDateTime(value);
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DateTime dtOther = Convert.ToDateTime(otherDTPropertyValue);
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if (dtThis < dtOther)
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{
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return new ValidationResult(FormatErrorMessage(validationContext.DisplayName));
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}
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}
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return ValidationResult.Success;
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}
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public System.Collections.Generic.IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
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{
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ModelClientValidationRule rule = new ModelClientValidationRule
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{
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ValidationType = "notlessthan",
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ErrorMessage = FormatErrorMessage(metadata.GetDisplayName())
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};
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rule.ValidationParameters.Add("otherproperty", OtherDTProperty);
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yield return rule;
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}
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}
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}
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