SingleOrDefault() throws an exception on more than one element

Question

I\'m getting an exception whenever I fetch like this

Feature f = o.Features.SingleOrDefault(e => e.LinkName == PageLink);

because this can r

Answer 1

SingleOrDefault suggests that you are expecting 0 or 1 results from your query. If you have more than 1 then there is something wrong with your data or query.

If you are expecting more than 1 result and only want the first one, then FirstOrDefault should be used.