Visual Studio 2019 – New Features – AI Code Assistant

Apple’s WWDC Keynote news will be dominating most of the tech news in the coming week, however I thought it would be worth to note that Microsoft’s AI powered IntelliCode Assistant is now generally available.

This new feature builds on the great IntelliSense features of Visual Studio, which essentially provide you with type-ahead code recommendations. Microsoft trained IntelliCode by feeding it the source code of thousands of open-source GitHub projects (with 100 stars or more). By combining this data and the context of your code, it can make much smarter recommendations. For instance instead of just offering just an alphabetically sorted list of all the properties, methods and events of a class, you now get far more clever suggestions which in most cases eliminate the need for scrolling.

So far it offers coding recommendations, argument completion as well as inferring code style and formatting conventions. It supports C#, C++, TypeScript/JavaScript and XAML. Of course, this is only the beginning of what Microsoft can do with this new feature. For now it will help save a lot of time while helping developer reduce bugs by making better choices as they write code.

The new feature is available on Visual Studio 16.1 and as an extension for Visual Studio 2017 version 15.8. Try it yourselves today. There is also an extension available for Visual Studio Code.


Visual Studio 2019 – New Features – Data Breakpoints

There are two new additions to Visual Studio 2019, full .NET Core 3.0 support and Data Breakpoints.

When .NET Core 3.0 is released later on this year, it will be fully supported by the latest version of Visual Studio. .NET Core 3.0 (currently in Preview 3) is already supported within the IDE, but Microsoft decided to delay its full release until the autumn, when it will be fully integrated. However, it currently needs to be installed separately and enabled within the IDE.


Once you have installed and enabled support for .NET Core 3.0 you can play with a very useful new feature, Data Breakpoints. Once available only to C++ developers, it has now been adapted to work with .NET Core 3.0 applications. This feature allows you to break your execution, and jump into the debugger, when a variable’s value changes. This makes finding where a global objected is being modified very easy.

Visual Studio 2019 – New Features – Decompiled Resources

Visual Studio 2019 was released this week and it is now available to download and use from Microsoft. Check which edition is right for you and download it.

Over the next few weeks I will try to cover some the new features in this version. However, I would like to start with something that’s been close to my heart recently. The ability to easily decompile external resources.

We have all been stuck trying to fix a bug in our code only to be mystified at the output of a NuGet package, or an external library that is used in our code. Not knowing what’s going on within an external module, during debugging, is very frustrating. Having to deal with a black box situation makes life complicated. Developers always had the ability to use tools such as ildasm to decompile third party libraries, so they can take a look at what might be causing the issue they are trying to resolve. But having to interupt your debug flow mid way to look at a separate application to figure out what’s going on is not very intuitive.

With Visual Studio 2019, the ability to step into third party decompiled source code is now a check box away!

To enable this feature, simply select Tools > Options. Type “decompile” into the search bar and then choose the Advanced section of Text Editor for C#.

This is still an experimental feature, but extremely useful.