With the .NET 5 release comes the newest Entity Framework Core version, unsurprisingly called Entity Framework Core 5 (EF Core 5). The .NET community got its first glimpse of Entity Framework (EF) on August 11th, 2008, with the release of .NET Framework 3.5 Service Pack 1. Let's say a few things have changed since the initial release. For those unfamiliar with the technology, Entity Framework is an object-relational mapper (ORM), helping developers overcome the impedance mismatches between C# and a database instance's schema. Entity Framework has come a long way since its original inception.

As developers, we're in a neverending struggle to find a balance between style and substance. The tabs vs. spaces argument even found its way into pop culture during Season 3 of HBO's Silicon Valley. We understand that style can be a point of debate within teams. While the codebase's style might not impact the runtime execution of applications, it can have measurable impacts on team productivity. With Rider's latest release, we will empower developers to auto-detect and configure their coding style preferences in a few simple steps, and maybe, avoid a few heated debates on style. Let's take a

With the upcoming release of C# 9, we're all getting some new tools for our development toolboxes. One of the most exciting features .NET 5 is delivering to developers is top-level statements. In this post, we'll explore what top-level statements are, who they're useful for, the rules of top-level statement apps, and taking a peek at intermediate language (IL) generation. Gather round the virtual campfire 🏕, and let's explore this topic together. (more…)

Hello folks! With the Rider 2020.2 release out of the door, we're looking toward the future. After sharing our ReSharper 2020.3 plans earlier this week, we'll now look at our plans for Rider 2020.3. Your feedback is welcome and encouraged. The following is a set of highlighted features our team is currently working on. Let's get started. .NET 5 – Our plan is to put significant time and effort to support the upcoming release of .NET 5. While development is possible in Rider today with .NET 5, it is incomplete. .NET 5 is the future of .NET, and we want to help developers get there. More Perform

Today we are introducing a new type of dataflow code analysis in ReSharper and Rider. We’ve gathered some statistics (by exploring the IL metadata of a large number of NuGet.org packages with an OSS license) and noticed that int is one of the most commonly used types for local variables. That's why this new analysis tracks the usage of values of the int type in your programs. It tracks the flow of integer values through your programs to detect useless or possibly erroneous pieces of code. It warns you about the following issues: Relational/equality operators that always evaluate to true or f

The recording of our August 25 webinar, REST - the ignored parts, with Irina Scurtu, is now available. Subscribe to our community newsletter to receive notifications about future webinars. In a world dominated by APIs, where everyone seems to implement microservices with so many paradigms and standards to choose from, REST seems to be the default option. Despite that, many of these so-called REST APIs don’t respect the guidelines and become brittle by overlooking some of the most powerful constraints. In this session, we will look over how we can design a REST API that is flexible and evolvab

If you are already using nullable reference types, you might have noticed that they can help make your code safer. But not automagically... This feature relies heavily on everything called by your code being annotated. Unannotated APIs are a big problem for nullable reference types, as they never produce warnings. Values from such calls show extremely optimistic non-null hints, even though there are no guarantees that these hints are correct. Here's a compiler issue for this problem. For example, if you are using LINQ's FirstOrDefault() method from .NET Core 3.1, the compiler not only allows y

Where and when does a value in our program change? And what's the state of values in each iteration, when debugging recursive functions? Two good questions that Rider 2020.2 EAP helps answer, with Data Breakpoints and Pin-to-Frame! (more…)

Join us Tuesday, August 25, 2020, 16:00 - 17:00 CEST (10:00 AM - 11:00 AM EDT or check other timezones) for our free live webinar, REST - the ignored parts, with Irina Scurtu. Register now! In a world dominated by APIs, where everyone seems to implement microservices with so many paradigms and standards to choose from, REST seems to be the default option. Despite that, many of these so-called REST APIs don’t respect the guidelines and become brittle by overlooking some of the most powerful constraints. In this session, we will look over how we can design a REST API that is flexible and ev

The recording of our July 9 webinar, How to stop worrying and adopt nullable reference types - Webinar Recording, with Andrey Dyatlov, is now available. Subscribe to our community newsletter to receive notifications about future webinars. Nullable reference types is a deceptively simple feature. While starting with it is as easy as adding a single ? mark to your source code, migrating large code bases has been proven to be a tedious and sometimes quite tricky task especially when complex code contracts and generics are involved. The presentation will quickly cover what benefits this

At JetBrains, we make tools for developers, so we keep up with the latest trends and changes in the software development industry. We build many IDEs based on multi-platform software product lines for various programming languages. Our Developer Ecosystem Survey, which JetBrains runs yearly, aims to reveal the current ambience of the developer world. Today we are happy to share with you the results of the 2020 edition of this survey, focusing on C#. VIEW THE STATE OF DEVELOPER ECOSYSTEM 2020 REPORT (more…)

Join us Thursday, July 9, 2020, 16:00 - 17:00 CEST (10:00 AM - 11:00 AM EDT or check other timezones) for our free live webinar, How to stop worrying and adopt nullable reference types, with Andrey Dyatlov. Register now! Nullable reference types is a deceptively simple feature. While starting with it is as easy as adding a single ? mark to your source code, migrating large code bases has been proven to be a tedious and sometimes quite tricky task especially when complex code contracts and generics are involved. The presentation will quickly cover what benefits this feature brings to the t