MVC 5 - change Data anotation error message for Integers

Question

In my Mvc5 test project I have a model with a property like the following:

[Required]
[DisplayName("Codigo Cliente")]
public int ClientCode{ get; set; }

the default error message when the user enteres a letter of special character in the editor is:

The field Codigo Cliente must be a number.

How can I modify this? in this case I need to change the language, but in case that I wanted to show a more specific error what can I do?

I have tried with the DataType attribute but the Enum does not have a value that applys for this case (numbers)

did you try to specifiy the message with [Required(ErrorMessage="Please ...")] — NicoD, Jul 02 '14 at 15:32
Possible duplicate of http://stackoverflow.com/questions/2480557/providing-localized-error-messages-for-non-attributed-model-validation-in-asp-ne — rsenna, Jul 02 '14 at 15:35
@NicoD that would only show the error message if the user does not fill in a value in the editor — mmilan, Jul 02 '14 at 15:42

score 3 · Accepted Answer · answered Jul 02 '14 at 17:22

3

Use Range:

http://msdn.microsoft.com/en-us/library/system.componentmodel.dataannotations.rangeattribute.aspx

Or use IntegerOnly from Data Annotations Extensions

http://dataannotationsextensions.org/Integer/Create

answered Jul 02 '14 at 17:22

Artur Kedzior

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score 2 · Answer 2 · answered Jul 24 '14 at 05:40

The simplest way I found to solve this issue is use String with Range attribute in Data Annotation Model like specify below.

    [Required]
    [Range(0, int.MaxValue, ErrorMessage = "Codigo Cliente must be a positive or negative non-decimal number.")]
    [DisplayName("Codigo Cliente")]
    public string ClientCode { get; set; }

In Range attribute you can specify your custom Error Message. For Interger use int.MaxValue , For double use double.MaxValue like so on. I hope this will help you a lot.

iam sorry for downvote, it was my mistake, i cant take it back — Muflix, Nov 20 '15 at 07:07

score -1 · Answer 3 · answered Jul 02 '14 at 16:29

-1

If you want to specify a message you must use this

[Required(ErrorMessage = "your message")]

If you want to use a lang. based message is not that easy. You can use multiple resource file (for every language you need) and try a custom error binder that extends the DefaultModelBinder and make an override of the method BindModel(), there you can make your custom validation ad use your custom language message.

answered Jul 02 '14 at 16:29

theLaw

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This would show the message when the user does not provide a value. what I want is to change the message when a user enters an invalid value. IE a letter in an editor that accepts integers – mmilan Jul 02 '14 at 16:33
1

Using a custom error binder you can validate the value, read all the response. – theLaw Jul 03 '14 at 12:37

MVC 5 - change Data anotation error message for Integers

3 Answers3