Password DataAnnotation in ASP.NET MVC 3 [duplicate]

Question

Possible Duplicate:
Password validation (regex?)

I am working on asp.net MVC 3 application and I have applied

    [Required]
    [StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)]
    [DataType(DataType.Password)]
    [Display(Name = "Password")]
    public string Password { get; set; }

DataAnnotation to my Password field. I want to make sure that password must be at least 6 characters, no more than 18 characters, and must include at least one upper case letter, one lower case letter, and one numeric digit. Do I need to add regular expression or DataType.password will do all this ?

Please suggest

How is this related to entity framework?

Ladislav Mrnka
– Ladislav Mrnka

2012-01-02 10:12:57 +00:00
Commented Jan 2, 2012 at 10:12 — Ladislav Mrnka
– Ladislav Mrnka, Commented Jan 2, 2012 at 10:12
Not related to Entity Framework

hackp0int
– hackp0int

2012-01-02 11:21:49 +00:00
Commented Jan 2, 2012 at 11:21 — hackp0int
– hackp0int, Commented Jan 2, 2012 at 11:21

blackgreen · Accepted Answer · 2021-04-19 13:21:06Z

37

You must write exactly what you want. Write this:

[Required]
[StringLength(18, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)]
[RegularExpression(@"^((?=.*[a-z])(?=.*[A-Z])(?=.*\d)).+$")]
[DataType(DataType.Password)]
[Display(Name = "Password")]
public string Password { get; set; }

edited Apr 19, 2021 at 13:21

blackgreen♦

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answered Jan 2, 2012 at 9:23

Hadas

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2 Comments

Parth Over a year ago

@Hadas Could you explain what you have written in the regularExpression data annotation? I am trying to build a password req

Jose Ortega Over a year ago

Just: [RegularExpression("^((?=.*[a-z])(?=.*[A-Z])(?=.*\\d)).+$", ErrorMessage = "Error message")]

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