使用Linq-to-SQL同时将数据插入到不同的表中

Question

我这里有Linq-to-SQL代码,它将数据提交到各自表中的数据库中, PatientInformation并且ResponsibleParty:

public void addPatientInformation() { 
   using(DbClassesDataContext myDb = new DbClassesDataContext(dbPath)){
      PatientInfo patientInfo = new PatientInfo();

      patientInfo.Phy_ID = physcianID;
      patientInfo.Pat_First_Name = txtFirstName.Text;
      patientInfo.Pat_Middle_Name = txtMiddleName.Text;
      patientInfo.Pat_Last_Name = txtLastName.Text;
      patientInfo.Pat_Gender = cmbGender.Text;
      patientInfo.Pat_Marital_Status = cmbMaritalStatus.Text;
      patientInfo.Pat_Date_Of_Birth = dtpDOB.Value;
      patientInfo.Pat_Home_Add = txtHomeAdd.Text;
      patientInfo.Pat_Home_Num = txtPhone.Text;
      patientInfo.Pat_Work_Add = txtWorkAdd.Text;
      patientInfo.Pat_Work_Num = txtWorkPhone.Text;
      patientInfo.Pat_Prim_Physician = txtPrimPhysician.Text;
      patientInfo.Pat_Ref_Physician = txtRefePhysician.Text;

      myDb.PatientInfos.InsertOnSubmit(patientInfo);
      myDb.SubmitChanges();
   }
}

public void addResponsiblePartyInformation() { 
   using(DbClassesDataContext myDb = new DbClassesDataContext(dbPath)){
      ResponsibleParty responsibleParty = new ResponsibleParty();

      responsibleParty.Res_First_Name = txtResFirstName.Text;
      responsibleParty.Res_Middle_Init = txtResMiddleName.Text;
      responsibleParty.Res_Last_Name = txtResLName.Text;
      responsibleParty.Res_Gender = cmbResGender.Text;
      responsibleParty.Res_Marital_Status = cmbResMaritalStatus.Text;
      responsibleParty.Res_Date_Of_Birth = dtpResDOB.Value;
      responsibleParty.Res_Home_Add = txtResHomeAdd.Text;
      responsibleParty.Res_Home_Num = txtResPhone.Text;
      responsibleParty.Res_Work_Add = txtResWorkAdd.Text;
      responsibleParty.Res_Work_Num = txtResWorkPhone.Text;

      myDb.ResponsibleParties.InsertOnSubmit(responsibleParty);
      myDb.SubmitChanges();
   }

并且一个名为的方法

public void submitInformationToDatabase() {
            addPatientInformation();
            addResponsiblePartyInformation();
            MessageBox.Show("Patient Demographics Has Been added.");
        }

有没有办法可以立刻提交？

Answer 1

两种选择:

• 传递数据上下文,不要SubmitChanges()每次调用(也许使其成为可选)
• 使用交易

对于第二个,TransactionScope可以用来做这个而不必更改两个方法:

using(var tran = new TransactionScope()) {
    method1(...);
    method2(...);
    tran.Complete();
}

或者使用其他方法(添加可选参数后):

using(var ctx = new SomeDataContext(...)) {
    method1(ctx, ..., submitChanges: false);
    method2(ctx, ..., submitChanges: false);
    ctx.SubmitChanges();
}