// save or register student
public string RegisterStudent(Student student)
{
if (studentGateway.EmailIsExists(student.Email))
{
return("Exists");
}
else
{
student.RegNo = MakeRegistrationNumber(student);
System.Diagnostics.Debug.Write(student.RegNo);
int rowsAffected = studentGateway.RegisterStudent(student);
if (rowsAffected > 0)
{
return("Success");
}
else
{
return("Failed");
}
}
}