public string[] GetRecommendationForVisitor(string visitorUID, int numberOfRecommendations, string database)
{
if (numberOfRecommendations <= 0 || numberOfRecommendations > int.MaxValue)
{
return(null);
}
try {
string[] productRecommendation = pr.GetProductRecommendations(visitorUID.ToUpper(), numberOfRecommendations, database.ToUpper());
return(productRecommendation);
} catch (InvalidOperationException ioe) {
return(null);
}
}
