Making Do with Absent Foreign Keys: Listing 3.

The new version of InsertOrUpdate.

[HttpPost]
public ActionResult Create(Leaf leaf)
{
  if (ModelState.IsValid)
  {
    var _treeId = Request.Form["TreeId"] as int;
    leafRepository.InsertOrUpdate(leaf, _treeId);
    leafRepository.Save();
    return RedirectToAction("Index", new { treeId = _treeId });
  }
  else
  {
    return View();
  }
}

About the Author

Julie Lerman is a Microsoft MVP, .NET mentor and consultant who lives in the hills of Vermont. You can find her presenting on data access and otherMicrosoft .NET topics at user groups and conferences around the world. She blogs at thedatafarm.com/blog and is the author of "Programming Entity Framework" (2010) and "Programming Entity Framework: Code First" (2011), both from O'Reilly Media. Follow her on Twitter at twitter.com/julielerman.

comments powered by Disqus

Featured

  • VS Code Python Tool Does Multiple Interactive Windows

    Code cells from Python scripts by default will still be executed in a same interactive window, but developers can now configure the Python extension to run separate files in separate interactive windows.

  • VS Code Java Team Improves 'Getting Started' Experience

    Microsoft's dev team responsible for the Java on Visual Studio Code extensions released a new update that eases the "getting started" experience, addressing feedback from new users who want an easier onramp.

  • Data Prep for Machine Learning: Encoding

    Dr. James McCaffrey of Microsoft Research uses a full code program and screenshots to explain how to programmatically encode categorical data for use with a machine learning prediction model such as a neural network classification or regression system.

  • Surface Duo Debut Presents Dual-Screen Dev Challenges

    Microsoft officially launched its new dual-screen Android device, Surface Duo, presenting new challenges -- and opportunities -- for developers to leverage the new form factor.

  • What's New in Blazor Tooling Updates

    Here's a quick look at what four major third-party Blazor tooling vendors have offered lately for Microsoft's red-hot project that allows for web development with C# instead of JavaScript.

.NET Insight

Sign up for our newsletter.

Terms and Privacy Policy consent

I agree to this site's Privacy Policy.

Upcoming Events