Validating the Instance Document
To validate the simple type data in an instance document you can use the isValid() method. The basic isValid() method returns a bool value indicating whether all checks of simple type data in the document affirmed that the data was valid. To determine the exact nature of the errors in the event that isValid() returns false, you need to use the overload that passes in an rwsf::XmlValidator instance. The code below shows how you would check the errors for the PurchaseOrder instance.
 
rwsf::XmlValidator validator("temp");
if (!po.isValid(validator)) {
std::list<rwsf::XmlSchemaException> errs = validator.getErrors();
list::iterator iter = errs.begin();
while(iter != errs.end()) {
std::cout << (*iter).what() << std::endl;
}
}