是否有日期时间一RangeAttribute？ [英] Is there a RangeAttribute for DateTime?

问题描述

我有一个日期时间字段在我的模型，需要验证它使创建时它具有的回落立即和 6年之前，。我一直在使用范围如

I have a Datetime field in my Model and need to validate it so that when it is created it has to fall between Now and 6 Years Prior. I have tried using range like

[Range(DateTime.Now.AddYears(-6), DateTime.Now)]
public DateTime Datetim { get; set; }

但是，这将引发一个错误不能转换系统日期时间翻番。任何人都可以提出一个解决方法，这模型本身？

But this throws an error cannot convert system datetime to double. Can anyone suggest a workaround to this in the model itself?

推荐答案

使用这个属性：

public class CustomDateAttribute : RangeAttribute
{
  public CustomDateAttribute()
    : base(typeof(DateTime), 
            DateTime.Now.AddYears(-6).ToShortDateString(),
            DateTime.Now.ToShortDateString()) 
  { } 
}

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