CODEWITHSUNDEEP
c#validationdata-annotations
dbarnes
dbarnes

Reputation: 1833

Validation context not checking Validation Attributes

I'm running into a weird scenario and I'm hoping it's a chair and keyboard kind of error.

I can't seem to get the validation context to check any other validation attribute.

here is my poco:

  public class TestMe
  {
    [System.ComponentModel.DataAnnotations.Range(1,40)]
    public int Count { get; set; }

  }

and I am running 

  var t = new TestMe();
  t.Count = 0;
  var context = new ValidationContext(t, null, null);
  var validationResults = new List<ValidationResult>();
  var result = Validator.TryValidateObject(t, context, validationResults);

this seems to return true with no errors. it only seems to check the RequiredAttribute. I tried creating a new attribute to check to see if IsValid is getting called and to my disappointment neither of the IsValid functions were executed. I overrode the RequiredAttribute and that one DOES seem to be getting called.

Does anyone know what the heck I am doing wrong?

Upvotes: 3

Views: 1475

Answers (2)

Joao Ricardo
Joao Ricardo

Reputation: 421

Make sure to allow the Validator.TryValidateObject() to run. If you are debugging and have a breakpoint on/before the Validator you will not see results.

Upvotes: 0

Sam
Sam

Reputation: 2917

Try this 

var result = Validator.TryValidateObject(t, context, validationResults, true);

You must make use of the validateAllProperties parameter in TryValidateObject. Set it to true. that's it then range validator should work as expected.

hope this helped!

Upvotes: 3

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