//sort by date descending
public List <Post> GetPostsByDateDescending()
{
var sortedPosts = posts.ToArray();
SortByDate.Quicksort(sortedPosts, 0, (sortedPosts.Length - 1));
return(sortedPosts.Reverse().ToList <Post>());
}
//sort by date ascending
public List <Post> GetPostsByDateAscending()
{
//List<Post> sortedPosts = posts.OrderBy(o => o.Date).ToList();
var sortedPosts = posts.ToArray();
SortByDate.Quicksort(sortedPosts, 0, (sortedPosts.Length - 1));
return(sortedPosts.ToList <Post>());
}