mvc数据注释正则表达式
我刚刚开始摆弄正则表达式，但基本上这个（我在网上找到的）应该要求密码在 8 - 10 之间，但每当我尝试并输入正确的长度时，它仍然显示错误信息。有什么想法吗？ 我还需要在验证中包含 1 个小写字母、1 个大写字母和 1 个数字。
public class password : IValidatableObject
{
[Required]
[RegularExpression("(?=^.{8,10}$)", ErrorMessage = "Password is invalid.")]
public string ConfirmPWD { get; set; }
[Required(ErrorMessage="Confirm Password field is required.")]
public string ConfirmPWD { get; set; }
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
if (ConfirmPWD != ConfirmPWD )
yield return new ValidationResult("Not identical.");
}
}
I just started messing around with regularexpressions, but basically with this one (which i found online btw) is supposed to require for the password to be between 8 - 10, but whenever i try it out and put in the correct length it's still showing the error message. any ideas?
i also need to include a 1 lowercase, 1 uppercase and 1 number on the validations..
public class password : IValidatableObject
{
[Required]
[RegularExpression("(?=^.{8,10}$)", ErrorMessage = "Password is invalid.")]
public string ConfirmPWD { get; set; }
[Required(ErrorMessage="Confirm Password field is required.")]
public string ConfirmPWD { get; set; }
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
if (ConfirmPWD != ConfirmPWD )
yield return new ValidationResult("Not identical.");
}
}
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评论（2）
您可能想要这样的东西：
[RegularExpression(@"^.{8,10}$",ErrorMessage =“必须介于 8 到 10 个字符之间。”)]
You probably want something like this:
[RegularExpression(@"^.{8,10}$",ErrorMessage = "Must be between 8 and 10 characters.")]
尝试仅
".{8,10}"。此外，更具体的错误消息可能对您的用户有帮助。编辑：想想为什么不直接使用
StringLengthAttribute来实现这个...[StringLength(10, MinLength = 8, ErrorMessage = "密码必须在 8 到 10 个字符之间") ]那么您可以使用正则表达式来实现更具体的规则，例如所需的复杂性。
try just
".{8,10}". also, a more specific error message might be helpful to your users.Edit: come to think of it why not just use the
StringLengthAttributefor this...[StringLength(10, MinLength = 8, ErrorMessage = "Password must be between 8 and 10 characters")]then you can use regex for your more specific rules such as required complexity.