Private Sub SaveLists(ByVal Contacts As ContactCollection)

        Dim wsContacts As wsIonized.IonClientCalls = New wsIonized.IonClientCalls
        Dim xs As New XmlSerializer(GetType(BusinessObjects.ContactCollectionProxyStub))
        Dim contactproxy As ContactCollectionProxyStub = New ContactCollectionProxyStub(Contacts)
        Dim sw As New StringWriter()
        xs.Serialize(sw, contactproxy)
        wsContacts.SaveContacts(sw.ToString())

    End Sub

Server side deserializes contacts but when I hit the save I get a cannot insert NULL into column ID. The Contact table has an AutoIncrement PK on Id. If ES takes care of identities why do I get this? Am I on the right path?

Code:

        [WebMethod(Description = "Return a list of all the customer's contacts")]
        public int SaveContacts(int id, string pwd, string Contacts)
        {
            ContactCollection Addresses = new ContactCollection();

            XmlSerializer sf = new XmlSerializer(typeof(ContactCollectionProxyStub));
            StringReader sr = new StringReader(Contacts);

            ContactCollectionProxyStub contactproxy =
                sf.Deserialize(sr) as ContactCollectionProxyStub;
            Addresses = contactproxy.GetCollection();

            if (Addresses.Count > 0)
            {
                Addresses.Save();
            }
            return Addresses.Count;
        }
    }

Code:

[WebMethod]
public int SaveEmployees(string employees)
{
    XmlSerializer sf = new XmlSerializer(typeof(EmployeesCollectionProxyStub));
    StringReader sr = new StringReader(employees);

    EmployeesCollectionProxyStub proxy = sf.Deserialize(sr) as EmployeesCollectionProxyStub;
    EmployeesCollection emps = proxy.GetCollection();

    if (emps.Count > 0)
    {
        emps.Save();
    }
    return emps.Count;
}

[WebMethod]
public string GetEmployees()
{
    EmployeesCollection coll = new EmployeesCollection();
    coll.Query.SelectAllExcept(coll.Query.Photo);
    coll.Query.es.Top = 3;
    coll.Query.Load();

    // The Generated Proxy class
    EmployeesCollectionProxyStub proxy = new EmployeesCollectionProxyStub(coll);

    // Manually Serialize into string form (we want to deserialize it on the other side)
    XmlSerializer sf = new XmlSerializer(typeof(EmployeesCollectionProxyStub));
    StringWriter sw = new StringWriter();
    sf.Serialize(sw, proxy);

    return sw.ToString();
}

Code:

private void button1_Click(object sender, EventArgs e)
{
    ESWebService.ServiceSoapClient req = new ESWebService.ServiceSoapClient();
    string emps = req.GetEmployees();

    

    XmlSerializer xs = new XmlSerializer(typeof(BusinessObjects.EmployeesCollectionProxyStub));
    StringReader sr = new StringReader(emps);

    // Deserialize into our Proxy
    BusinessObjects.EmployeesCollectionProxyStub proxy =
    xs.Deserialize(sr) as BusinessObjects.EmployeesCollectionProxyStub;

    // Ask the proxy for the true Employees object
    EmployeesCollection empColl = proxy.GetCollection();

    Employees emp = empColl.AddNew();
    emp.FirstName = "wsMike";
    emp.LastName = "wsGriffin";

    emp = empColl.AddNew();
    emp.FirstName = "wsMike";
    emp.LastName = "wsGriffin";

    proxy = new BusinessObjects.EmployeesCollectionProxyStub(empColl, true);

    XmlSerializer sf = new XmlSerializer(typeof(BusinessObjects.EmployeesCollectionProxyStub));

    StringWriter sw = new StringWriter();
    sf.Serialize(sw, proxy);

    string packet = sw.ToString();

    req.SaveEmployees(packet);
}