public string Save(Student student)
{
bool regExist = gateway.DoesRegNoExist(student.RegistaionNo);
if (regExist)
{
return("Registation number already exist");
}
else
{
int rowAffacted = gateway.Save(student);
if (rowAffacted > 0)
{
return("Saved Successfully");
}
else
{
return("Saving Failed");
}
}
}