MVC3 How to define custom error messages using annotations?

Question

I have a DateTime field(that can accept multiple date time formats, so it is pain to create Regex patter)

When in the field I'm entering something like "Aaaaaa", I'm getting error message:

The value 'Aaaaa' is not valid for OwnerBirthDate

Model looks:

[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:dd.MM.yyyy}")]
[Required(ErrorMessage = "*")]
public DateTime? OwnerBirthDate { get; set; }

View:

@Html.TextBoxFor(x => x.OwnerBirthDate)

How can I define custom error message for this particular field?

Thank you

If you want to validate that the value that is being entered by the user in the corresponding input field you will have to write a custom model binder.stackoverflow.com/questions/6921928/… — robasta
– robasta, Commented Jan 18, 2013 at 10:47

NinjaNye · Accepted Answer · 2013-01-18 10:46:33Z

2

You can use ValidationMessageFor to apply a custom message if you want a different message to one pre defined in an attribute

@Html.ValidationMessageFor(m => m.OwnerBirthDate, "custom error message")

answered Jan 18, 2013 at 10:46

NinjaNye

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4 Comments

Sergejs Over a year ago

getting the same... not even rendered, any ideas why?

NinjaNye Over a year ago

You still need to use @Html.TextBoxFor(x => x.OwnerBirthDate). The above is in addition for a custom error.

Sergejs Over a year ago

I do, but in controller in model state I'm seeing old error message. @Html.ValidationMessageFor(m => m.OwnerBirthDate, "custom error message") - bot even rendered

Sergejs Over a year ago

Adding code: <div id = "test"> @Html.ValidationMessageFor(m => m.OwnerBirthDate, custom error message") </div> In genrated output(in browser) i can see empty <div id="test">

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