Code inspection: Part of loop's body can be converted into LINQ-expression

This inspection reports a foreach loop whose body can only be partly converted into a LINQ-style sequence operation. This warning is produced for foreach loops when part of the body is query-like but the entire loop cannot be replaced with a single LINQ expression.

Example

                foreach (var item in source)
                {
                    if (item.IsVisible)
                        yield return item;
                    Log(item);
                }
            

                foreach (var item in source.Where(item => item.IsVisible))
                {
                    yield return item;
                    Log(item);
                }
            

Quick-fix

Convert the convertible part of the loop body into a query operation while keeping the remaining loop logic explicit.

30 March 2026