I have created a custom validator that I wish to put on one of my
business objects attributes to do validation before an object is
persisted to the database.
In order for validation to be successful though I need to be able to
pass in the variable to the custom validator, it is NOT a constant
like all the other examples I've seen. How do you do this??? For
instance where I have ExamType="blah" below, I need to be able to pass
in the actual exam type property from the business object which is
contained in the same class, but I don't see how you can do that.
public class ActiveContentCodeAttribute : Attribute, IRuleArgs
{
private string _examType = string.Empty;
public string ExamType
{
get { return _examType; }
set { _examType = value; }
}
}
public class ActiveContentCodeValidator :
IInitializableValidator<ActiveContentCodeAttribute>
{
private string _examType = string.Empty;
public bool IsValid(object value)
{
//TODO: Check database to see if the examtype is already
active
return true;
}
public void Initialize(ActiveContentCodeAttribute parameters)
{
_examType = parameters.ExamType;
}
}
And on my business object class I have done this:
[ActiveContentCode(ExamType="blah")
public virtual bool Active
{
get { return _active; }
set
{
OnActiveChanging();
_active = value;
OnActiveChanged();
}
}
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