DataAnnotations not using DisplayName Attribute in Error Messages

Question

In my application, I'm using the dataAnotation as below for validating my ViewModels:

[DisplayName("Provider Business Name") ]
[StringLength(35)]
public string ProviderBusinessName
{
    get { return _providerBusinessName; }
    set { _providerBusinessName = value.ToUpper(); }
}

My environment is Asp.Net Webforms 4.0 and I'm manually invoking the validation with the following code:

dynamic context = new ValidationContext(datamodel, serviceProvider: null, items: null);
results = new List<ValidationResult>();
return Validator.TryValidateObject(datamodel, context, 
                                   results, validateAllProperties: true);

My problem is that the error messages are using the property name instead of the contents of the DisplayName attribute. As far as I can see, the validation attributes should use the DisplayName in the error message.

Aram · Accepted Answer · 2015-05-28 19:45:56Z

5

Try using Display property instead (that will make it work for your validation give you the power to use Resources there to be localized):

 [Display(Name = "Provider Business Name")]

answered May 28, 2015 at 19:45

Aram

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1 Comment

Shankar Over a year ago

I'm working on a .net 7 application and this solution doesn't work. For e.g., I'm getting ConfirmPassword display name as "Confirm Password" from a resource file, but the response in the web api is still showing ConfirmPassword

Fabio · Accepted Answer · 2015-05-28 19:45:46Z

1

Have you tried:

[Display(Name = "Provider Business Name")]

?

answered May 28, 2015 at 19:45

Fabio

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