• Home
  • Free Trial
  • Sign In
  • Techdegree
  • Tracks
  • Library
  • Community
  • Support
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • Android
      • • APIs
      • • Business
      • • C#
      • • Computer Science
      • • CSS
      • • Data Analysis
      • • Databases
      • • Design
      • • Development Tools
      • • Digital Literacy
      • • Go
      • • HTML
      • • iOS
      • • Java
      • • JavaScript
      • • Learning Resources
      • • Machine Learning
      • • PHP
      • • Python
      • • Quality Assurance
      • • Ruby
      • • Security
      • • Swift
  • Juan Ignacio Scopp
    PRO
    Juan Ignacio Scopp
    Pro Student 291 Points

    When did the ComicBookLibraryManager method get coded?

    Posted November 17, 2018 12:22pm by Juan Ignacio Scopp
    Juan Ignacio Scopp
    Pro Student 291 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Creating Entities

    1 Answer

  • Mark Ramos
    Mark Ramos
    17,640 Points

    Errors when loading this project

    Posted September 4, 2018 7:50pm by Mark Ramos
    Mark Ramos
    17,640 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Creating Entities

    1 Answer

  • jared eiseman
    jared eiseman
    29,023 Points

    Not sure I understand what's going on here...

    Posted July 12, 2018 11:47pm by jared eiseman
    jared eiseman
    29,023 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Updating an Entity

    1 Answer

  • olu adesina
    PRO
    olu adesina
    Pro Student 19,018 Points

    Attach() in ENTITY FRAMEWORK

    Posted July 12, 2018 3:42pm by olu adesina
    olu adesina
    Pro Student 19,018 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Updating Entities

    1 Answer

  • Robert Patterson
    Robert Patterson
    2,915 Points

    using the 'Attach' method keeps throwing error: System.InvalidOperationException HResult = 0x80131509

    Posted May 1, 2018 4:29am by Robert Patterson
    Robert Patterson
    2,915 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Updating Entities

    0 Answers

  • Hakim Rachidi
    Hakim Rachidi
    33,731 Points

    When is an entity tracked by the context?

    Posted April 3, 2018 10:25am by Hakim Rachidi
    Hakim Rachidi
    33,731 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Updating Entities

    1 Answer

  • Lee Puckett
    Lee Puckett
    12,538 Points

    Any tips for this challenge - Updating Entities - appreciated.

    Posted November 15, 2017 5:21pm by Lee Puckett
    Lee Puckett
    12,538 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Updating an Entity

    4 Answers

  • Larry Singleton
    Larry Singleton
    18,939 Points

    Entity Framework

    Posted July 8, 2017 8:44am by Larry Singleton
    Larry Singleton
    18,939 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Deleting an Entity

    3 Answers

  • Alexander Olson
    Alexander Olson
    13,067 Points

    Deleting an Entity:

    Posted July 6, 2017 11:20pm by Alexander Olson
    Alexander Olson
    13,067 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Deleting an Entity

    2 Answers

  • Adam Urteaga
    Adam Urteaga
    14,482 Points

    'GetContext' doesn't exist?

    Posted June 14, 2017 6:05pm by Adam Urteaga
    Adam Urteaga
    14,482 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Deleting an Entity

    1 Answer

  • Rodi Kubaizi
    Rodi Kubaizi
    1,439 Points

    what do you mean by disconnected entity ?

    Posted June 7, 2017 6:44pm by Rodi Kubaizi
    Rodi Kubaizi
    1,439 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Section Review

    1 Answer

  • Joe Mackey
    Joe Mackey
    20,332 Points

    In Repository.cs update the AddCourse method to add a course to the context. Instantiate an instance of the

    Posted June 4, 2017 3:37pm by Joe Mackey
    Joe Mackey
    20,332 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Creating an Entity

    5 Answers

  • Amy Shah
    Amy Shah
    25,328 Points

    very close possibly

    Posted March 11, 2017 4:14pm by Amy Shah
    Amy Shah
    25,328 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Creating an Entity

    1 Answer

  • Amy Shah
    Amy Shah
    25,328 Points

    i might be very close now

    Posted March 11, 2017 4:13pm by Amy Shah
    Amy Shah
    25,328 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Updating an Entity

    1 Answer

  • Amy Shah
    Amy Shah
    25,328 Points

    compiler says SaveChanges is not recognized

    Posted March 11, 2017 2:38pm by Amy Shah
    Amy Shah
    25,328 Points
    • C#
    • Entity Framework Basics
    • CRUD Operations
    • Creating an Entity

    1 Answer

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

Our mission is to bring affordable technology education to people everywhere in order to help them achieve their dreams and change the world.
Our Company
About Us
Contact Us
Community
Treehouse Stories
Student Perks
Treehouse Blog
Affiliate Program
Careers
Topics
HTML
CSS
Design
JavaScript
Ruby
PHP
iOS
Android
Development Tools
Business
Tracks
Web Design
Web Development
Rails Development
PHP Development
iOS Development
Android Development
Starting a Business
  • Treehouse Blog
  • Shop Treehouse
  • About Treehouse
  • Privacy Policy
  • Terms & Conditions
  • © 2019 Treehouse Island, Inc.

Sign in

I forgot my password