.NET Tips and Tricks

Blog archive

Finding Layout Views in ASP.NET Core

The biggest change in handling Views in ASP.NET Core is that you can now have more than one _Layout.cshtml file in your project and your Views will pick the one "closest to them." In ASP.NET MVC, you set a View's Layout property to the full path name of the Layout file to be used, like this:

@{
  Layout = "~/Views/Shared/_Layout.cshtml";
}

In ASP.NET Core, you can set the Layout property to as little as the name of the file. This, for example, is perfectly OK:

@{
  Layout = "_Layout";
}

When you don't provide a path name to your layout View, ASP.NET Core first goes looking for the layout in the same folder as the View that requested it. Only when ASP.NET Core doesn't find a file with the right name "locally" does ASP.NET Core go on to the /Shared folder to find a "global" layout View.

This means that you can set the Layout property in your _ViewStart.cshtml file to a default value "_Layout" but have Views in different folders pick up different layouts. This can mean a lot fewer Views having to override that default setting for the Layout property: If all the Views for a Controller share a layout View, you can just put that layout View in the Views folder for that Controller's Views.

Posted by Peter Vogel on 04/04/2019 at 9:39 AM


comments powered by Disqus

Featured

  • What's New in Visual Studio 2019 v16.5 Preview 2

    The second preview of Visual Studio 2019 v16.5 has arrived with improvements across the flagship IDE, including the core experience and different development areas such as C++, Python, web, mobile and so on.

  • C# Shows Strong in Tech Skills Reports

    Microsoft's C# programming language continues to show strong in tech industry skills reports, with the most recent examples coming from a skills testing company and a training company.

  • Color Shards

    Sharing Data and Splitting Components in Blazor

    ASP.NET Core Version 3.1 has at least two major changes that you'll want to take advantage of. Well, Peter thinks you will. Depending on your background, your response to one of them may be a resounding “meh.”

  • Architecture Small Graphic

    Microsoft Ships Preview SDK, Guidance for New Dual-Screen Mobile Era

    Microsoft announced a new SDK and developer guidance for dealing with the new dual-screen mobile era, ushered in by the advent of ultra-portable devices such as the Surface Duo.

  • How to Create a Machine Learning Decision Tree Classifier Using C#

    After earlier explaining how to compute disorder and split data in his exploration of machine learning decision tree classifiers, resident data scientist Dr. James McCaffrey of Microsoft Research now shows how to use the splitting and disorder code to create a working decision tree classifier.

.NET Insight

Sign up for our newsletter.

Terms and Privacy Policy consent

I agree to this site's Privacy Policy.

Upcoming Events