public List <double> GetRatingPercentages(List <Review> reviews)
{
var RatingPercentages =
from Review in reviews
group Review by Review.StarRating into ReviewGroup
orderby ReviewGroup.Key
select Math.Round(ReviewGroup.ToList().Count / (double)reviews.Count * 100.0, 0);
List <double> Percentages = RatingPercentages.ToList();
//If movie has no reviews for one or more ratingstars insert 0 value for missing ratingstar review
//(to avoid displaying ratingpercentage at wrong ratingstar)
//Add missing review(s) after linq query to avoid added review being taken in total percentage
for (int i = 0; i < 5; i++)
{
if (!reviews.Exists(x => x.StarRating == i + 1))
{
Percentages.Insert(i, 0);
}
}
return(Percentages);
}
