C# 实体框架插入多个外键

我需要将DivHospital插入医院，并将患者链接/插入DivHospital

Patient.DivHospitalID (FK)
DivHospital.HospitalID (FK)
Hospital.HospitalID (PK)

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假设您没有处理PKs（ints），并且由于您使用的是ORM，您不应该这样做

您不需要做EntityKey的工作，只需直接设置它们

Patient tp = new Patient();
DivHospital dh = new DivHospital();

dh.HospitalReference.EntityKey =
     new EntityKey("transportPagerEntities.Hospital", "hospitalID", hospital);
         tp.DivHospitalReference.EntityKey = new  
         EntityKey("transportPagerEntities.DivHospital", "divHospitalID", hospitalref);

context.AddToDivHospital(dh);
context.AddToTransportPatient(tp);
context.SaveChanges();

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使用EntityFramework，这非常简单（如果我了解您的问题）：

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我正在处理PKs。Patient.DivHospitalID（FK）=>DivHospital.DivHospitalID（PK）DivHospital.HospitalID（FK）=>Hospital.HospitalID（PK）我需要创建DivHospital“记录”，然后将其与患者链接。

Patient tp = new Patient();
DivHospital dh = new DivHospital();

dh.Hospital = hospital;
tp.DivHospital = hospitalref;

context.AddToDivHospital(dh);
context.AddToTransportPatient(tp);

context.SaveChanges();

Patient tp = new Patient();
DivHospital dh = new DivHospital();

dh.Patient.Add(tp);  //magic

context.AddToDivHospital(dh);
context.SaveChanges();