Validator.TryValidateObject Not Validating RangeAttribute
Given the following object,
public class Question
{
[Required]
public string QuestionText { get; set; }
[Range(1, 5)]
public int Difficulty { get; set; }
}
With the following Validation Code
ICollection<ValidationResult> results = new List<ValidationResult>();
Question question = new Question();
ValidationContext ctx = new ValidationContext(question, null开发者_如何学Python, null);
Validator.TryValidateObject(question, ctx, results);
// results.Length = 1
Why does Range attribute not create a validation error when Required does (the value is 0 obviously)?
Ah so it would seem I need to specify validateAllProperties = true
Validator.TryValidateObject(question, ctx, results, true);
Incidentally what was throwing me off was the fact I had an abstract base class with another property in it and without validateAllProperties the Validator will stop on the first error of ALL superclasses too. So you will get a validation error for each superclass (in my case 2)
Validator.TryValidatorObject(instance, validationContext, validationResults)
calls Validator.TryValidateObject(instance, validationContext, validationResults, validateAllProperties)
with validateAllProperties = false
.
When validateAllProperties is false
, only the RequiredAttribute
will be validated.
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