Question

I was curious if this procedure im doing could be archieved in a much more elegant and cleaner manner?

        foreach (MediaTitle item in mediaTitleCollection)
        {
            if (item is FilmMedia)
            {
                FilmMedia tempItem = (FilmMedia) item;
                sum += tempItem.Playtime;
            }
        }

Thanks in advance.

Answer 1

var sum = mediaTitleCollection.OfType<FilmMedia>().Sum(x => x.Playtime);