C#- 验证美国或加拿大邮政编码
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C#- Validation for US or Canadian zip code
提问by Sunil Singh
I am using following method to validate US or Canadian zip code, but i think it is not working fine for me. Please suggest me the changes in the regular expression.
我正在使用以下方法来验证美国或加拿大的邮政编码，但我认为它对我来说效果不佳。请建议我修改正则表达式。
private bool IsUSorCanadianZipCode(string zipCode)
{
bool isValidUsOrCanadianZip = false;
string pattern = @"^\d{5}-\d{4}|\d{5}|[A-Z]\d[A-Z] \d[A-Z]\d$";
Regex regex = new Regex(pattern);
return isValidUsOrCanadianZip = regex.IsMatch(zipCode);
}
Thanks.
谢谢。
采纳答案by d.moncada
var _usZipRegEx = @"^\d{5}(?:[-\s]\d{4})?$";
var _caZipRegEx = @"^([ABCEGHJKLMNPRSTVXY]\d[ABCEGHJKLMNPRSTVWXYZ])\ {0,1}(\d[ABCEGHJKLMNPRSTVWXYZ]\d)$";
private bool IsUSOrCanadianZipCode(string zipCode)
{
var validZipCode = true;
if ((!Regex.Match(zipCode, _usZipRegEx).Success) && (!Regex.Match(zipCode, _caZipRegEx).Success))
{
validZipCode = false;
}
return validZipCode;
}
}
回答by John Washam
If you are using Data Annotation Validators, you can use a RegularExpression attribute like this:
如果您正在使用数据注释验证器，您可以使用这样的 RegularExpression 属性：
[RegularExpression(@"(^\d{5}(-\d{4})?$)|(^[ABCEGHJKLMNPRSTVXYabceghjklmnprstvxy]{1}\d{1}[ABCEGHJKLMNPRSTVWXYZabceghjklmnprstv??xy]{1} *\d{1}[ABCEGHJKLMNPRSTVWXYZabceghjklmnprstvxy]{1}\d{1}$)", ErrorMessage = "That postal code is not a valid US or Canadian postal code.")]
(regex is from the link @huMptyduMpty posted above at http://geekswithblogs.net/MainaD/archive/2007/12/03/117321.aspxbut my regex allows both upper and lower case letters)
（正则表达式来自上面发布的链接@huMptyduMpty http://geekswithblogs.net/MainaD/archive/2007/12/03/117321.aspx但我的正则表达式允许大写和小写字母）
回答by Bogdan Mates
The US zipcode validation which works "on my machine" is
“在我的机器上”工作的美国邮政编码验证是
[RegularExpression(@"\d{5}$", ErrorMessage = "Invalid Zip Code")]
