C# 如何从实体框架中获取自动id

我想获得我刚刚创建的客户的id，以插入到userId表中，该表将填充查找表中包含的信息

我的问题是如何从新创建的客户检索id。我使用的是实体框架6 btw

tblPortalCustomerInfo _customer = new tblPortalCustomerInfo();

_customer.firstName = firstname;
_customer.middleName = middle;
_customer.lastName = lastname;
_customer.IVACODE = ivaCode;
_customer.email = emailAddress;

portalEntities.tblPortalCustomerInfoes.Add(_customer);

tblPortalUser _user = new tblPortalUser();
_user.customerInfo = _customer.id; this is where i need the link?.
_user.EmailAddress = emailAddress;
_user.password = password;
_user.isActive = true;
_user.optinDateStart = DateTime.Now;

portalEntities.tblPortalUsers.Add(_user);
portalEntities.tblPortalUsers.Add(_user);

---

您必须先插入该客户行，然后在为其生成的

\u customer.id

中自动填充主键值，如下所示：

tblPortalCustomerInfo _customer = new tblPortalCustomerInfo();

_customer.firstName = firstname;
_customer.middleName = middle;
_customer.lastName = lastname;
_customer.IVACODE = ivaCode;
_customer.email = emailAddress;

portalEntities.tblPortalCustomerInfoes.Add(_customer);
portalEntities.SaveChanges(); // insert the customer


tblPortalUser _user = new tblPortalUser();
_user.customerInfo = _customer.id; // now you should have primary key value here
_user.EmailAddress = emailAddress;
_user.password = password;
_user.isActive = true;
_user.optinDateStart = DateTime.Now;

---

您必须先插入该客户行，然后在为其生成的

\u customer.id

中自动填充主键值，如下所示：

tblPortalCustomerInfo _customer = new tblPortalCustomerInfo();

_customer.firstName = firstname;
_customer.middleName = middle;
_customer.lastName = lastname;
_customer.IVACODE = ivaCode;
_customer.email = emailAddress;

portalEntities.tblPortalCustomerInfoes.Add(_customer);
portalEntities.SaveChanges(); // insert the customer


tblPortalUser _user = new tblPortalUser();
_user.customerInfo = _customer.id; // now you should have primary key value here
_user.EmailAddress = emailAddress;
_user.password = password;
_user.isActive = true;
_user.optinDateStart = DateTime.Now;

---

您需要在添加新记录后调用SaveChange（）方法，然后您将获得新生成的ID

您需要在添加新记录后调用SaveChange（）方法，然后您将获得新生成的ID

您必须首先添加用户并保存它。只有这样，您才能获得ID（如果表是自动递增的），您必须首先添加用户并保存它。只有这样，你才能获得ID（如果表格是自动递增的）谢谢@Ehsan你在form mate上变得非常有名，我认为这会是那么愚蠢的事情谢谢@Ehsan你在form mate上变得非常有名，我认为这会是那么愚蠢的事情