Question

I’d like to set up a multidimensional list. For reference, I am working on a playlist analyzer.

I have a file/file-list, which my program saves in a standard list. One line from the file in each list entry.

I then analyze the list with regular-expressions to find specific lines. Some of the data/results from the lines needs to be put into a new multidimensional list; since I don’t know how many results/data I’ll end up with, I can’t use a multidimensional array.

Here is the data I want to insert:

 List (     [0] => List         (             [0] => Track ID             [1] => Name             [2] => Artist             [3] => Album             [4] => Play Count             [5] => Skip Count          )     [1] => List         ( And so on.... 

Real Example:

 List (     [0] => List         (             [0] => 2349             [1] => The Prime Time of Your Life             [2] => Daft Punk             [3] => Human After All             [4] => 3             [5] => 2          )     [1] => List         ( 

So yeah, mlist[0][0] would get TrackID from song 1, mlist[1][0] from song 2 etc.

But I am having huge issues creating a multidimensional list. So far I have come up with

List<List<string>> matrix = new List<List<string>>(); 

But I haven’t really had much more progress 🙁

Answer 1

Well you certainly can use a List<List<string>> where you’d then write:

List<string> track = new List<string>(); track.Add('2349'); track.Add('The Prime Time of Your Life'); // etc matrix.Add(track); 

But why would you do that instead of building your own class to represent a track, with Track ID, Name, Artist, Album, Play Count and Skip Count properties? Then just have a List<Track>.