public string saveResult(Student student)
{
string message = "";
if (!studentGateway.IsGradeAssigned(student))
{
int rowAffected = studentGateway.AssignGrade(student);
if (rowAffected > 0)
{
message = "Grade updated!";
}
else
{
message = "Grade not updated!";
}
}
else
{
message = "Grade already updated!";
}
return(message);
}