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我試圖在.net 3.5中的實體框架中的我的兩個表之間定義一對多關係。一對多關係在asp.net中將外鍵保存爲NULL
市表
CityId
CityName
EMPLOYEE表
EmployeeId
EmployeeName
RegistrationDate
FK_CityID
我試圖在員工中插入數據插入完美的所有數據,但FK_CityID是instred NULL。點擊代碼 DateTime dt = new DateTime(2008,12,12);
EmployeeService es = new EmployeeService();
CityService cs = new CityService();
Payroll.Entities.Employee e1 = new Payroll.Entities.Employee();
Payroll.Entities.City city1 = cs.SelectCity(Convert.ToInt32(cmbCity.SelectedItem.Value));
e1.FK_CityID = city1;
e1 = Payroll.Entities.Employee.CreateEmployee(0, "Archana",dt);
es.AddEmpoyee(e1);
在e1.City我傳遞整個對象,它是city1(城市的對象),它是完美,但傳入數據庫將保存NULL
爲MyService類是
public string AddEmpoyee(Payroll.Entities.Employee e1)
{
//DAO
Payroll_DAO payrollDAO = new Payroll_DAO();
payrollDAO.AddToEmployee(e1);
payrollDAO.SaveChanges();
return "SUCCESS";
}
,我沒有得到我的錯......
打開你的SQL事件探查器,看看,什麼是價值獲得通過,當您保存!或者在es.AddEmployee(e1)放一個斷點並查看e1的字段。 – 2012-04-16 13:27:10
我在** es.AddEmployee(e1)**處放置了一箇中斷點**我沒有在** FK_CityID **中獲得價值。但由於我得到** cityReference ** – Smily 2012-04-17 05:41:02