Find next record in a set: LINQ

Question

I have a list of objects which all have an id property

E.g

1, 10, 25, 30, 4

I have a currentId and I need to find the next Id in the list

So

Answer 1

Without re-ordering (note I edit slightly as I think I misread the question):

int[] data = {1, 10, 25, 30, 4};
int last = 25;
var next = data.SkipWhile(i => i != last).Skip(1).First();

Obviously, if data was a set of objects, something like:

var next = data.SkipWhile(obj => obj.Id != last).Skip(1).First();