Collections & LINQ · Lesson 8

Count

Count tells you how many items matched. It does not add their amounts.

8 min guided lesson · Read, predict, then run

How it works

Three prices are at least 10: 12, 10, and 25. The 8 does not match. Count prints 3. Sum of the same filter would print 47. Count and Sum answer different questions.

A working example

var prices = new[] { 12m, 8m, 10m, 25m };
var kept = prices.Where(p => p >= 10m);
Console.WriteLine(kept.Count());
Open in playground

Expected output

3
Try this
Try the filter on a smaller list.