ReSharper Interactive Tutorials get an update

As you may remember, along with ReSharper 2016.3 we released a special plugin entitled “ReSharper Tutorials.” In brief, it’s a plugin with a set of interactive ReSharper tutorials. Here’s how it works:

  • When you launch a tutorial, a sample solution is loaded.
  • The tutorial guides you through a number of steps, each illustrating a particular feature. The plugin automatically checks whether you have performed the actions described at each step.
    ReShareper Tutorials. Automatic Steps

As we released ReSharper 2017.1, the plugin also got updated to version 0.9.9. What’s in this update?

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Rider EAP update: .csproj-based .NET Core support (and how to migrate)

The latest Rider Early Access Program (EAP) build now supports working with .csproj-based .NET Core projects. In this post, let’s see what that means, what is supported (and what is yet to come) and how to migrate from the (deprecated) project.json format to the new .csproj format.

What are .csproj-based .NET Core projects?

Back in May 2016, Microsoft announced that project.json would go away. It took a while, but since a few weeks the latest stable .NET Core tooling is all MSBuild based (or .csproj-based, if you will).

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Meet ReSharper Ultimate 2017.1!

This year’s first major release of ReSharper Ultimate is finally here with an ultimate support for Visual Studio 2017! We invite you to download the 2017.1 update and check all the long-awaited features, which you can read about in this post.
Along with 600+ fixes in ReSharper and 110+ fixes in ReSharper C++ this release comes with the following major improvements:

Let’s dig into the details!

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ReSharper Ultimate 2017.1 EAP 8: Bug-fixes for unit tests

We have finally set the release date: ReSharper Ultimate 2017.1 will be out on April 3rd. In the meantime, we are releasing one more EAP build which fixes critical issues with discovering and running unit tests.

The previous EAP introduced an unfortunate bug that caused problems in discovering xUnit tests. You definitely couldn’t run MSTest tests if you installed the recent Visual Studio 2017 update (as of March 28th) as Microsoft had changed APIs. Now we support only the latest update. In earlier Visual Studio versions, you’ll see the following message box when trying to run unit tests:


If you experienced any of the issues described above, please download and install ReSharper Ultimate 2017.1 EAP 8 along with the recent update for Visual Studio 2017. As always, if you encounter any other issues, please report them to us.

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ReSharper Ultimate 2017.1 EAP 7: usability improvements to Code Cleanup

As we approach the release date, there’s always an urge to get more bugs fixed and new features polished. Obviously, we couldn’t resist and decided to publish an additional pre-release build. Download ReSharper Ultimate 2017.1 EAP 7 and check some nice new features and improvements we have introduced.

Throughout this Early Access Program, we’ve been working on improving the design and usability of ReSharper’s Code Cleanup. This feature is useful when you need to apply a number of code cleanup tasks in a bulk mode. You can create various code cleanup profiles to apply in different scenarios.

In previous ReSharper versions, you had to go to Code Editing | Code Cleanup to configure the profiles. Now you can create and edit your custom task-specific profiles right in the Code Cleanup dialog box, simply by pressing Ctrl+E,C.

We’ve also expanded the list of C++ code cleanup tasks with ReSharper’s 14 most commonly used code style features.

Code Cleanup dialog box

In the previous EAP build, we introduced an option to filter the results in the Go to Everything popup. EAP 7 adds a similar option to the Go to Text popup. Type ‘/’ and some designated chars to use the filter:

Filter in Go to Text

Apart from these features, we’ve fixed several bugs in ReSharper and ReSharper C++.

The 2017.1 release is just around the corner, so please stay tuned for the news!

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Webinar: Exploring .NET’s memory management

Join us Thursday, April 6, 16:00 – 17:00 CEST (check other timezones) for our free live webinar, Exploring .NET’s Memory Management, with Maarten Balliauw.

Register Now: Exploring .NET's Memory Management

In this webinar, we’ll take a trip down memory lane and look into how .NET memory management works. We’ll start off with the .NET Garbage Collector (GC) is really cool and look at how it helps providing our applications with virtually unlimited memory, so we can focus on writing code instead of manually freeing up memory. But how does .NET manage that memory? What are hidden allocations? Are strings evil? It still matters to understand when and where memory is allocated. In this talk, we’ll go over the base concepts of .NET memory management and explore how .NET helps us and how we can help .NET – making our apps better. Expect profiling using dotMemory, Intermediate Language (IL), and using ClrMD to mimic some inspections dotMemory provides.

To attend this webinar, register here.

About the presenter:

Matt EllisMaarten Balliauw is Developer Advocate at JetBrains and loves building web and cloud apps. His main interests are in ASP.NET MVC, C#, Microsoft Azure, PHP and application performance. He is a frequent speaker at various national and international events and organizes Azure User Group events in Belgium. In his free time, he likes brewing his own beer. Maarten’s blog can be found at

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ReSharper Ultimate 2017.1 EAP 6: dotMemory console profiler and more

Today we welcome you to download our last pre-release build of ReSharper Ultimate 2017.1 and check out all new features and improvements that we’ve been working on since the beginning of this year. In the previous builds we fixed important bugs and added new features that mostly relate to perfecting support for Visual Studio 2017 RTM and C# 7. Today’s EAP build includes noticeable updates to dotMemory, dotPeek and a few other improvements that we are going to cover in this post.

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Rider EAP 19: new .NET Core, LESS, Sass, and more

Here’s a monthly dose of good news: you can now download a new Rider EAP build.

JetBrains Rider EAP 19

Below is a quick summary of what’s inside Rider EAP 19. Note that the build contains major improvements that we’re hoping to describe in more detail next week.

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Language injections in Rider

Just like ReSharper, Rider supports language injections. In almost every project there are cases where we want to (or have to) embed a piece of code in a string literal. For example, pieces of HTML inside a JavaScript string, or a quick JSON fragment inside a C# string. Let’s see how they work.

Note: In this blog post, we’ll look at some of the basics of language injections. They work similar in both Rider and ReSharper – check this deep-dive post on language injections in ReSharper to learn more.

Mark as injected language

Like all good things in Rider, Alt+Enter is where it starts. In the editor, we can place the caret on a string literal and mark it as an injected language.

Inject CSS into C# string literal

Whenever a string contains C#, regular expressions, CSS, HTML, JSON or JavaScript, Rider can treat it as a code fragment, providing highlighting and code analysis for them. Even quick-fixes are available, for example for selecting a specific CSS color or fixing a JavaScript comparison:

JavaScript language injection - quick-fix

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ReSharper Ultimate 2017.1 EAP update: Visual Studio 2017 RTM and more

We are getting closer to the release date and working hard towards providing the finest coding experience to Visual Studio 2017 RTM users. If you are already using the latest release of Visual Studio, make sure to download ReSharper Ultimate 2017.1 EAP 5 to get the best support for its new features.

We have introduced quite a lot of improvements during this EAP, and today we’ll take a look at updates in our two latest EAP builds.

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