How do I use the Count function in LINQ with C#?

How do I use the Count function in LINQ with C#?

The Count function in LINQ is used to count the number of elements in a collection. You can use it like this: int count = myList.Count(); This will give you the total number of items in myList.

Can I use Count with a condition?

Yes, you can! You can use a predicate to count items that meet a specific condition. For example: int count = myList.Count(x => x > 10); This counts how many items are greater than 10.

What if I want to count distinct items?

You can use the Distinct() method before counting. For example: int distinctCount = myList.Distinct().Count(); This will count only the unique items in the list.

Are there any performance considerations?

Yes, using Count on large collections can impact performance. If you're counting items based on a condition, consider using Any() for early exits when possible.