MVC Validation make RegularExpression numeric only on string field

Question

I have the following property in my view model:

[Required]
[MaxLength(12)]
[MinLength(1)]
[RegularExpression(\"[^0-9]\", ErrorMessage = \"UPRN must be numeri         


        

Answer 1

The RegEx should be ^[0-9]*$.

I.E.

The property should look like:

[Required]
[MaxLength(12)]
[MinLength(1)]
[RegularExpression("^[0-9]*$", ErrorMessage = "UPRN must be numeric")]
public string Uprn { get; set; }

See working example.

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I'm sure you already have jQuery referenced but make sure jQuery validate and Microsoft validate scripts are included.