Question

I am creating range of student entities in a raw but having problem while assigning sequential order id. I am trying to assign next order number, but all students get same order id.

newClass.Studends.AddRange(
newStudents.Select(student=> new Student
{
name=student.name,
orderid= student.AssociatedStudents.Max(as=>as.OrderId) + 1
})
);

P.S. The code above is not original code, I tried to create similar code.

Answer 1

Try + i++ instead of just +1. I mean

int i=0;

    newClass.Studends.AddRange( newStudents.Select(student=> new Student { name=student.name, orderid= student.AssociatedStudents.Max(as=>as.OrderId) + i++ }) );