How to find a sub-list of two consecutive items in a list using Linq

Question

Suppose that we have a list of strings like

\"A\", \"B\", \"C\", \"D\", \"E\", \"F\"

Now I\'d like to search for a sub-list of

Answer 1

The most elegant solution is the simplest

Where((x,i) => (x == "D") && (i != list.Count - 1) && (list[i + 1] == "E")).FirstOrDefault();