CODEWITHSUNDEEP
asp.net-web-api
Luke Puplett
Luke Puplett

Reputation: 45135

WebAPI - How to invoke model validation outside of an action/request?

Does anyone know how to simply run a model instance through the model state validation mechanism?

I just want to reuse the system for something different. I have some models that I read configuration files into and I'd like to decorate them with data annotation attributes and validate the configuration file is setup properly.

Upvotes: 0

Views: 153

Answers (1)

peco
peco

Reputation: 4000

Then you want to run System.ComponentModel.DataAnnotations.Validator. I think this is what gets called under the hoods.

Say you have a class like this:

public class Customer
{
    [Required]
    public string FirstName { get; set; }
}

You can then validate this object by running the following code:

[Test]
public void Test()
{
    var customer = new Customer();
    var results = new List<ValidationResult>();
    var valid = Validator.TryValidateObject(customer, new ValidationContext(customer), results, true);

    valid.ShouldBe(false);
    results.Count.ShouldBe(1);
}

Upvotes: 1

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