ASP.NET MVC 3 : Validation get message list

Question

I have this :

public class Customer
{
    [DisplayName("Lastname"), StringLength(50)]
    [Required(ErrorMessage="My Error Message")]
    [NotEmpty()]
    public override string LastName { get; set; }

    [DisplayName("Firstname"), StringLength(50)]
    [Required(ErrorMessage="My Error Message 2")]
    [NotEmpty()]
    public override string FirstName{ get; set; }
}

In the controller, I do this :

if (!TryValidateModel(myCustomer))
{
  //HERE
  ....
}

Where "HERE" is, I'd like get all error messages.

Some sample cases :

If "LastName" is missing I'd like get "My Error Message"
If both are mising, I'd like get a List (or other) with the values "My Error Message" and "My Error Message 2"

Any idea ?

Thanks,

Darin Dimitrov · Accepted Answer · 2011-06-08 07:42:56Z

16

You could get a list of all errors with their respective field and message like this:

var errors = ModelState
    .Where(x => x.Value.Errors.Count > 0)
    .Select(x => new { x.Key, x.Value.Errors })
    .ToArray();

answered Jun 8, 2011 at 7:42

Darin Dimitrov

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2 Comments

TheBoubou Over a year ago

No no I don't want all messages, I want just message for the field in error

Darin Dimitrov Over a year ago

@Kris-I, that's what you're gonna get => see the Where clause. It will take only the fields that have an error.

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