I am attempting to add some entities that I have created. When I try and add the entity in question to the set (see code below) I get the following error:
"The object could not be added or attached because its EntityReference has an EntityKey property value that does not match the EntityKey for this object."
I can't tell what entitykey it's referring to though. Here is the code, there is probably a much better way to pull this off as well:
public Internship CreateInternship(Internship internshipToCreate)
{
try
{
Contact contactToCreate = new Contact();
contactToCreate.Fax = internshipToCreate.contacts.Fax;
contactToCreate.Extension = internshipToCreate.contacts.Extension;
contactToCreate.FirstName = internshipToCreate.contacts.FirstName;
contactToCreate.MiddleName = internshipToCreate.contacts.MiddleName;
contactToCreate.LastName = internshipToCreate.contacts.LastName;
contactToCreate.PhoneNumber = internshipToCreate.contacts.PhoneNumber;
contactToCreate.StreetAddress = internshipToCreate.contacts.StreetAddress;
contactToCreate.PostalCode = internshipToCreate.contacts.PostalCode;
contactToCreate.ContactEmail = internshipToCreate.contacts.ContactEmail;
contactToCreate.statesReference.EntityKey =
new EntityKey("InternshipEntities.StateSet", "ID", internshipToCreate.contacts.states.ID);
contactToCreate.countriesReference.EntityKey =
new EntityKey("InternshipEntities.CountrySet", "ID", internshipToCreate.contacts.countries.ID);
_internshipEntities.AddToContactSet(contactToCreate);
_internshipEntities.SaveChanges();
try
{
Availability availabilityToCreate = new Availability();
availabilityToCreate.StartDate = internshipToCreate.availability.StartDate;
availabilityToCreate.EndDate = internshipToCreate.availability.EndDate;
availabilityToCreate.Negotiable = internshipToCreate.availability.Negotiable;
_internshipEntities.AddToAvailabilitySet(availabilityToCreate);
_internshipEntities.SaveChanges();
try
{
internshipToCreate.contactsReference.EntityKey =
new EntityKey("InternshipEntities.ContactSet", "ID", contactToCreate.ID);
internshipToCreate.availabilityReference.EntityKey =
new EntityKey("InternshipEntities.AvailabilitySet", "ID", availabilityToCreate.ID);
internshipToCreate.classificationsReference.EntityKey =
new EntityKey("InternshipEntities.ClassificationSet", "ID", internshipToCreate.classifications.ID);
internshipToCreate.educationReference.EntityKey =
new EntityKey("InternshipEntities.EducationSet", "ID", internshipToCreate.education.ID);
_internshipEntities.AddToInternshipSet(internshipToCreate); //exception here
_internshipEntities.SaveChanges();
return internshipToCreate;
}
catch(Exception e)
{
throw e;
}
}
catch(Exception e)
{
throw e;
}
}
catch(Exception e)
{
throw e;
}
}
There is no other information given besides the error when I trace through so I'm not even sure which Key is the issue.
EDIT: Here is the version that ended up working:
using (TransactionScope scope = new TransactionScope())
{
try
{
Contact contactToCreate = new Contact();
Availability availabilityToCreate = new Availability();
Internship i = new Internship();
// Set the contact entity values;
contactToCreate.Fax = internshipToCreate.contacts.Fax;
//...
//ommited for brevity
//...
contactToCreate.ContactEmail = internshipToCreate.contacts.ContactEmail;
// Set the contact entity references to existing tables
contactToCreate.statesReference.EntityKey =
new EntityKey("InternshipEntities.StateSet", "ID", internshipToCreate.contacts.states.ID);
contactToCreate.countriesReference.EntityKey =
new EntityKey("InternshipEntities.CountrySet", "ID", internshipToCreate.contacts.countries.ID);
// Add contact
_internshipEntities.AddToContactSet(contactToCreate);
// Set the availability entity values;
availabilityToCreate.StartDate = internshipToCreate.availability.StartDate;
availabilityToCreate.EndDate = internshipToCreate.availability.EndDate;
availabilityToCreate.Negotiable = internshipToCreate.availability.Negotiable;
// Add availability
_internshipEntities.AddToAvailabilitySet(availabilityToCreate);
//Add contact and availability entities to new internship entity
i.contacts = contactToCreate;
i.availability = availabilityToCreate;
// Set internship entity values;
i.UserID = internshipToCreate.UserID;
//...
//ommited for brevity
//...
i.Created = DateTime.Now;
// Set the internship entity references to existing tables
i.classificationsReference.EntityKey =
new EntityKey("InternshipEntities.ClassificationSet", "ID", internshipToCreate.classifications.ID);
i.educationReference.EntityKey =
new EntityKey("InternshipEntities.EducationSet", "ID", internshipToCreate.education.ID);
// Add internship and save
_internshipEntities.AddToInternshipSet(i);
_internshipEntities.SaveChanges();
//commit transaction
scope.Complete();
return internshipToCreate;
}
catch (Exception e)
{
throw e;
}
}