Question

I have an ArrayList that contains multiple String[] (String arrays).

Each String[] contains a key: name

What I want to do is sort the ArrayList based on the value of name.

Using Array.Sort did not work because it cannot compare String[]. How can I sort the ArrayList based on the value of name that is within the String[]?

Answer 1

In LINQ:

var ordered = arrayList.Cast<String[]>().OrderBy(ar => arr[0]);

Normally it’s better to use a strong typed List<String[]> instead of an ArrayList. When you say key it sounds as if you want to have a list of strings for each unique key. Then a Dictionary<String, String[]> would be the best choice.