✨ Earn college credits in Cybersecurity, JS, HTML, CSS and Python

🤑 Join the Treehouse affiliate program and earn 25% recurring commission!

New No-Code Track! 🚀start learning today!

🌟 Dreaming of a bright future? 🎓 Ask about the Treehouse Scholarship program! 🚀

✨ Earn college credits in Cybersecurity, JS, HTML, CSS and Python

🤑 Join the Treehouse affiliate program and earn 25% recurring commission!

  • Treehouse Logo
  • Plans
    Chevron
    • For Individuals
    • For Businesses
    • For Schools
    • For Libraries
    • For Military
  • Library
    Chevron
    • All Courses
    • Tracks
    • College Credit
  • Techdegree
    Chevron
    • Overview
    • Front End Development
    • Full Stack JavaScript
    • Data Analysis
    • UX Design
    • Python
  • Community
    Chevron
    • Code Adventures
    • Discord
    • Forum
    • Success Stories
    • Treehouse Links
    • 100 Days of Code
  • Resources
    Chevron
    • Career Toolbox
    • CodeForward
    • Free Treehouse Near Me
    • Jobs
    • Blog
    • Support
    • About
  • For Individuals For Businesses For Schools For Libraries For Military
  • All Courses Tracks College Credit
  • Overview Front End Web Development Full Stack JavaScript Python Development Data Analysis UX Design
  • Code Adventures Discord Forum Success Stories Treehouse Links 100 Days of Code
  • Career Toolbox CodeForward Free Treehouse Near Me Jobs Blog Support About
  • Sign In
  • Free Trial
Instagram Twitter Facebook YouTube LinkedIn
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • AI
      • • Android
      • • APIs
      • • Coding for Kids
      • • College Credit
      • • Computer Science
      • • CSS
      • • Data Analysis
      • • Databases
      • • Design
      • • Development Tools
      • • Digital Literacy
      • • Game Development
      • • Go Language
      • • HTML
      • • Java
      • • JavaScript
      • • Learning Resources
      • • Machine Learning
      • • No-Code
      • • PHP
      • • Professional Growth
      • • Python
      • • Quality Assurance
      • • React
      • • Ruby
      • • Security
      • • Swift
    • Showing results for:
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax
    • Close
  • PhuQuy Pham
    PhuQuy Pham
    9,588 Points

    LINQ Query

    Posted on Oct 27, 2019 by PhuQuy Pham
    PhuQuy Pham
    9,588 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    1 Answer

  • tafadzwa manzunzu
    tafadzwa manzunzu
    3,601 Points

    help please

    Posted on Sep 15, 2017 by tafadzwa manzunzu
    tafadzwa manzunzu
    3,601 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    3 Answers

  • Richard Jones
    Richard Jones
    3,500 Points

    IEnumerables code wont compile. I guess I am not catching the concept. Any pointers?

    Posted on May 28, 2017 by Richard Jones
    Richard Jones
    3,500 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    2 Answers

  • vincent batteast
    vincent batteast
    51,094 Points

    public method in the NumberAnalysis class called NumbersGreaterThanFive that returns an IEnumerable<int>.

    Posted on May 23, 2017 by vincent batteast
    vincent batteast
    51,094 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    3 Answers

  • John Fouts
    John Fouts
    12,234 Points

    Need some assistance with this one. Please help with this LINQ query question.

    Posted on Mar 16, 2017 by John Fouts
    John Fouts
    12,234 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    1 Answer

  • Emilio Meira
    Emilio Meira
    11,059 Points

    Complaining about a public method creation...

    Posted on Feb 20, 2017 by Emilio Meira
    Emilio Meira
    11,059 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    1 Answer

  • Yiu Ming Lai
    Yiu Ming Lai
    5,861 Points

    Need Help

    Posted on Oct 17, 2016 by Yiu Ming Lai
    Yiu Ming Lai
    5,861 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    1 Answer

  • Caitlin Baker
    Caitlin Baker
    15,779 Points

    Using Query Syntax

    Posted on Sep 30, 2016 by Caitlin Baker
    Caitlin Baker
    15,779 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    1 Answer

  • Andrew Winkler
    Andrew Winkler
    37,739 Points

    I don't understand what IEnumerable<int> implies. LINQ help please.

    Posted on Jun 23, 2016 by Andrew Winkler
    Andrew Winkler
    37,739 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    2 Answers

  • ambareesh M
    ambareesh M
    6,122 Points

    Add LINQ capabilities by adding a using directive to the NumberAnalysis.cs file. I added Using System.linq; still I m

    Posted on Jun 1, 2016 by ambareesh M
    ambareesh M
    6,122 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    3 Answers

  • ERKAN ÖZTÜRK
    ERKAN ÖZTÜRK
    1,723 Points

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

    Posted on May 29, 2016 by ERKAN ÖZTÜRK
    ERKAN ÖZTÜRK
    1,723 Points
    • C#
    • Querying With LINQ
    • Now You're Querying
    • Using Query Syntax

    1 Answer

Posting to the forum is only allowed for members with active accounts.
Please sign in or sign up to post.

    Treehouse

  • About
  • Blog
  • Careers
  • Community
  • Stories
  • Shop
  • Contact
  • Gift Card

See Full Catalogue

Techdegree

  • Front End Web Development
  • Full Stack JavaScript
  • Python Development
  • Data Analysis
  • UX Design

Tracks

  • Learn to Code for Beginners
  • Beginning Python
  • Beginning SQL
  • Beginning Java
  • ...see more

Courses

  • JavaScript Basics
  • Intro to HTML & CSS
  • Python Basics
  • CSS Layout
  • ...see more

Explore

  • Plans
  • Affiliates
  • Perks
  • Free Treehouse Near Me
  • Treehouse for Libraries
  • Treehouse for Businesses
  • Twitter
  • YouTube
  • Facebook
  • LinkedIn
  • Instagram
Terms & Conditions | Privacy

© 2025 Treehouse Island, Inc.