Feeding DataAnnotations.ValidationAttribute error messages with resource stored string value pairs

Question

My ValidationAttributes don't access my ErrorMessages value-pairs stored in a .resx Resource File generated with VS2010 built in resource generator. (Add New Item - Resources File)

I simply added a folder named Resources, then added a new Resources File and called it ErrorResources, in the resources editor I added a value pair StringLengthError - Too Long**.

Then in my DataAnnotation.ValidationAttribute I wrote:

  [StringLength(5, MinimumLength = 3, 
                    ErrorMessageResourceType = typeof(ErrorResources),
                    ErrorMessageResourceName = "StringLengthError")]
  public string Details { get; set; }

I added a using statement to include the ErrorResources.

But when I run it, the ValidationAttribute StringLength is totally void.

If I use it without the ErrorResources, as in :

  [StringLength(5, MinimumLength = 3)]
  public string Details { get; set; }

The validation attribute comes back to life.

I tried accessing the ErrorResources value pairs in other part of the code, and it works. I just can't get my ValidationAttributes to use the ErrorResources resource.

score 0 · Answer 1 · edited Sep 05 '12 at 01:08

0

Try change Access Modifier setting of Resources File to public !

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edited Sep 05 '12 at 01:08

Zoltan Toth

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answered Sep 04 '12 at 21:08

Bohdan Lyzanets

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Hi: I forgot to say that I already did that, and nothing happened! Furthermore, there's a project that I downloaded (some article that explains ValidationAttributes) that uses this kind of error messages in resources, it happened that the resources defined by this guy work, but I created a resource file in this project, and my resources didn't work in that project. I don't know why, could it be something related to the culture, but if so, why didn't it work in that project?, I don't kno what to think. This is the project: https://github.com/jeffhandley/RIAServicesValidation – Rafael Sep 05 '12 at 01:56
If I use the resouce files that are already present in that project, then it works, but defining new resource files, even in the same directoy, don't work – Rafael Sep 05 '12 at 01:58

score 0 · Accepted Answer · answered Sep 10 '12 at 22:50

0

Access modifier should be Public but that's not enough. You will have to change properties of your resx file to look like this:

Properties

Pay attention to Build Action and Custom Tool

In addition Resx used by data annotations should sit in App_GlobalResources rather than in Resources you've mentioned. Try these, see if that works alright.

Hope this will help you.

answered Sep 10 '12 at 22:50

Display Name

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Yes that's the answer, Custom Tool is also important. – Rafael Sep 24 '12 at 14:59
@user1353914 If that's the answer that was most useful and helpful, please mark it as accepted one. Thanks to you too . – Display Name Sep 24 '12 at 15:29
You seem to be very new to stackoverflow.com. Welcome & Enjoy & Good luck. You *click on V mark* (it says "click to set this answer as your accepted answer"). – Display Name Sep 24 '12 at 23:39

Feeding DataAnnotations.ValidationAttribute error messages with resource stored string value pairs

2 Answers2