Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# Querying With LINQ Now You're Querying Using Query Syntax

How to use linq query.Which library do i have to add?

Add library

NumberAnalysis.cs
using System.Collections.Generic;
using System.Linq;

namespace Treehouse.CodeChallenges
{
    public class NumberAnalysis
    {
        private List<int> _numbers;
        public NumberAnalysis(_numbers)
        {
            _numbers = new List<int> { 2, 4, 6, 8, 10 };
        }
    }
}

1 Answer

Steven Parker
Steven Parker
231,198 Points

The using statement you added is correct.

:point_right: The problem is that you also modified the NumberAnalysis constructor to require an argument.

Just put the definition of NumberAnalysis back the way it was and you should pass task 1.