Question

I have a folder that has pictures for specific “policies.” Each policy may contain any number of pictures. The folder could also contain any number of policies.

VAH007157100-pic1.jpg
VAH007157100-pic2.jpg
VAH007157100-pic3.jpg

WAZ009999200-pic1.jpg
WAZ009999200-pic2.jpg
WAZ009999200-pic3.jpg
WAZ009999200-pic4.jpg
…

Foreach policy GROUP, I want to run a method (CreateTiffFile()) that takes in an ARRAY (of files in this group) and performs certain actions.

In the example above, the method would run twice (because there are 2 distinct policies). I would also have 2 distinct arrays. One array containing VAH007157100 pictures (3 in this case) and another array (WAZ009999200) containing 4 pictures.

How would I run this method on each group array?

let me know if i wasn’t clear enough. remember, the number of policies and the number of pictures per policy varies so i need to take that into account.

For a better vision (based on data above):

CreateTiffFile(array containing VAH007157100 pics);
CreateTiffFile(array containing WAZ009999200 pics);

…

and so on.

Answer 1

You can do something like:

IEnumerable<string[]> grouped = theFiles.GroupBy(filename => filename.Split('-')[0])).Select(g => g.ToArray());

foreach(var group in grouped)
    CreateTiffFile(group);