Find next record in a set: LINQ

Asked 2009-08-26T10:20:31.103

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 for example current Id is set to 25, I need to return the object with an id of 30. The one after that would be 4.

How would I do this elegantly in LINQ?

EDIT

The list is ordered by a "sort" property. So you cannot just order by id, as that would mess up the order.

c# linq

Edit Report

1 Answer

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();

answered 2009-08-26T10:30:49.083