Question

If I have a pipe separated list can I split them automatically into an array of GUID’s?

So

“guid1|guid2”

and then Guid[] values = selectedValue.Split("|".ToCharArray()); would have been nice.

Answer 1

Almost:

Guid[] values = selectedValue.Split('|').Select(s => Guid.Parse(s)).ToArray();

If any of the Guids isn’t valid, this will throw a FormatException though.

If you want to ignore them, you can do what Jeremy suggest in the comments:

"9FE027E0-CF95-492F-821C-3F2EC9472657|bla|D94DF6DB-85C1-4312-9702-FB03A731A2B1"
.Split('|')
.Where(g => { Guid temp; return Guid.TryParse(g, out temp); })
.Select(g => Guid.Parse(g))
.ToArray()

Maybe this can be optimized further (We’re essentially parsing each number twice) or simply ignored as the 97% premature optimizations that don’t matter.