Entity Framework - how to save entity without saving related objects - entity-framework

Question

In my Entity Framework, I have three related entities 'Client', 'ClientAddress' and 'LookupAddressType'. "LookupAddressType" is a master class specifying the type of available address type, like business address, residential address etc. ClientAddress depend on LookupAddresstype and Client. While saving a Client entity with relevant ClientAddress data, i'm getting following error.
"Violation of PRIMARY KEY constraint 'PK_LookupAddressType'. Cannot
insert duplicate key in object 'dbo.LookupAddressType'. The statement
has been terminated.
I do not need LookupAddressType to be inserted. Here I just need the relevant lookupAddressTypeId to be inserted in clientAddress entity.
The Saving code is like this:
Add(Client);
_objectContext.SaveChanges();
how can i do this?
The Load Code is below:
private void LoadClientDetails(EFEntities.Client _Client)
{
EFEntities.LookupClientStatu clientStatus;
var clientAddressList = new List<ClientAddress>();
if (_Client == null)
{
return;
}
//Assign data to client object
_Client.ClientName = rtxtName.Text;
_Client.Alias = rtxtAlias.Text;
_Client.ClientCode =Int32.Parse(rtxtClientCode.Text);
_Client.TaxPayerID = rtxtTaxPayerId.Text;
if (rcboStatus.SelectedIndex != 0)
{
clientStatus = new EFEntities.LookupClientStatu
{
ClientStatusID = (Guid) (rcboStatus.SelectedValue),
ClientStatusDescription = rcboStatus.Text
};
_Client.LookupClientStatu = clientStatus;
}
//_Client.Modified = EnvironmentClass.ModifiedUserInstance.Id;
_Client.EffectiveDate = rdtEffectiveDate.Value;
if (rdtExpDate.Value != rdtExpDate.MinDate)
{
_Client.ExpirationDate = rdtExpDate.Value;
}
else
{
_Client.ExpirationDate = null;
}
_Client.StartDate = DateTime.Now;
EFEntities.ClientAddress clientAddress = null;
// Iesi.Collections.Generic.ISet<ClientAddress> clientAddress = new HashedSet<ClientAddress>();
foreach (var cAddress in _clientController.client.ClientAddresses)
{
clientAddress = cAddress;
break;
}
if (clientAddress == null)
{
clientAddress = new EFEntities.ClientAddress();
}
clientAddress.Address1 = rtxtClientAdd1.Text;
clientAddress.Address2 = rtxtClientAdd2.Text;
clientAddress.Address3 = rtxtClientAdd3.Text;
// Address type details
if (rcboClientAddType.SelectedIndex != -1)
{
clientAddress.LookupAddressType = new EFEntities.LookupAddressType
{
AddressTypeID = (Guid) (rcboClientAddType.SelectedValue),
AddressTypeDescription = rcboClientAddType.Text
};
//clientAddress.AddressType.Id = Convert.ToByte(rcboClientAddType.SelectedValue);
}
clientAddress.City = rtxtClientCity.Text;
clientAddress.Client = _Client;
\
_Client.ClientAddresses.Add(clientAddress);
}

Answer 1

Well I did this to the following lines of code to make it work.
if (rcboClientAddType.SelectedIndex != -1)
{
clientAddress.LookupAddressType = new EFEntities.LookupAddressType
{
AddressTypeID = (Guid) (rcboClientAddType.SelectedValue),
AddressTypeDescription = rcboClientAddType.Text
};
//clientAddress.AddressType.Id = Convert.ToByte(rcboClientAddType.SelectedValue);
}
I changed the above code into this
if (rcboClientAddType.SelectedIndex != -1)
{
//clientAddress.LookupAddressType = new EFEntities.LookupAddressType
// {
// AddressTypeID = (Guid) (rcboClientAddType.SelectedValue),
// AddressTypeDescription = rcboClientAddType.Text
// };
clientAddress.AddressTypeID = (Guid)(rcboClientAddType.SelectedValue);
}