验证日期在MVC MM / DD / YYYY格式 [英] Validate Date in MM/dd/YYYY format in mvc

问题描述

我已经声明在MVC info文件的属性如

I have declared a property in MVC info file like

  [Required(ErrorMessage = "End Date has not being entered")]
        [DataType(DataType.Date)]
        [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)]
        [RegularExpression(@"^(0[1-9]|1[012])[/](0[1-9]|[12][0-9]|3[01])[/]\d{4}$", ErrorMessage = "End Date should be in MM/dd/yyyy format")]
        public DateTime? ExpirationDate { get; set; }

但是，当我进入了像2013年5月13日正确格式的日期。它剧照显示errormessage的是

But when I am entered a date in correct format like 5/13/2013. It stills show the errormessage that

End Date should be in MM/dd/yyyy format

什么code我失踪或有任何其他错误与上述

What code I am missing or there is any other error with the above.

推荐答案

您无法验证与常规的前pression日期，使用DateTime.TryParseExact将字符串转换成一个DateTime对象。正则表达式将永远怀念细微之处，如闰年，等等。

You can't validate dates with regular expression, use DateTime.TryParseExact to convert the string into a DateTime object. Regex will always miss subtleties such as leap years, etc.

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