partial void DeleteSalary(Salary instance);
 partial void UpdateSalary(Salary instance);
 private void detach_Salary(Salary entity)
 {
     this.SendPropertyChanging();
     entity.Worker = null;
 }
 partial void InsertSalary(Salary instance);
 private void attach_Salary(Salary entity)
 {
     this.SendPropertyChanging();
     entity.Worker = this;
 }