Password DataAnnotation in ASP.NET MVC 3

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 Jan 02 '12 at 10:12 — Ladislav Mrnka, Jan 02 '12 at 10:12
Not related to Entity Framework – hackp0int Jan 02 '12 at 11:21 — hackp0int, Jan 02 '12 at 11:21

score 37 · Answer 1 · edited Apr 19 '21 at 13:21

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 '21 at 13:21

blackgreen

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answered Jan 02 '12 at 09:23

Hadas

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@Hadas Could you explain what you have written in the regularExpression data annotation? I am trying to build a password req – Parth Dec 02 '15 at 02:46
1

Just: [RegularExpression("^((?=.*[a-z])(?=.*[A-Z])(?=.*\\d)).+$", ErrorMessage = "Error message")] – Jose Ortega Sep 02 '16 at 07:19

Password DataAnnotation in ASP.NET MVC 3

1 Answers1