Code inspection: Replace with FirstOrDefault($args$)

This inspection reports a conditional expression that checks Any(...) before calling First(...), and returns null when there is no match. That pattern is equivalent to FirstOrDefault(...).

Example

var result = items.Any(x => x.IsValid) ? items.First(x => x.IsValid) : null;

var result = items.FirstOrDefault(x => x.IsValid);

Quick-fix

Replace the Any(...) ? First(...) : null pattern with FirstOrDefault(...).

29 March 2026