Question

I have a generic string list that looks something like this:

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

list.Add("foo");
list.Add("1");
list.Add("2");
list.Add("bar");
list.Add("foo");
list.Add("1");
list.Add("2");
list.Add("3");
list.Add("bar");

What I would like to know is if there is any way to select whats between two values. In this case I’m after “1”, “2” and “3”. So in other words, i want to select everything between the last “foo” and “bar”. Or perhaps select N rows after “foo” if that’s easier.

My best guess would be the TakeWhile method, but I need your help here.

Answer 1

Taking the last ones is usually a little trickier with LINQ. I’d just go for LastIndexOf for that part, since you have a List, after all:

int end = list.LastIndexOf("foo");

list.Skip(end + 1).TakeWhile(x => x != "bar")