Avoiding SQL Server plan cache pollution with EF Core 3 and Enumerable.Contains() One of the many advantages of using a tool like Entity Framework Core is, that you are sure that the framework will generate properly parameterized SQL for you. This helps avoid SQL injection issues and avoids plan cache pollution. Unfortunately, EF Core ...
Community Tutorial: Using NPoco with CockroachDB and C# / .NET Core | Cockroach Labs Hi, I’m Darrien, and I’m building a distributed, near-real time, “OSINT data reconnaissance” system. For this system, I’ll be using CockroachDB for its distribu
Optimize database traffic with future results in NHibernate How to use future results and delayed queries in NHibernate to optimize database traffic. Send and retrieve multiple queries with one batch to database.
Learning and documenting .NET with dotnet try – Bruno Sonnino Learning a new programming language is always hard. You have to read the documentation, stop, go to the IDE of your choice, start a new project, compile and run the program and see the results. Stop. Restart. After some time, you have no more patience for...
.NET Platforms Feature Comparison | Premier Developer App Dev Manager, Linkai Yu builds a namespace comparison for .NET Core 3.1, .NET Core Standard 2.1, and .NET Framework 4.8 to easily visualize some of the feature differences. I often get asked about the feature comparison among .NET Framework/.NET Core/...
EF Core 5.0: Using ToQueryString() method to translate LINQ query to SQL EF Core 5.0 comes with ToQueryString() method that translates LINQ queries to provider-specific SQL queries. Here is how it works.
Avoid In-Memory Databases for Tests A controversial GitHub issue came to my attention a couple of weeks ago around ditching the in-memory provider for Entity Framework Core. This seemed like a no-brainer to me - these database providers are far from trivial to maintain, even for in-memory s...
.NET Foundation Here's the February/March 2020 .NET Foundation update. Every month, we'll give you a quick overview of the .NET Open Source landscape, including top project news, events, community links and more.
C# developers! Your scoped components are more dangerous than you... There are hidden pitfalls with dependency injection, particularly when managing the lifetime of scoped components. What is safe? And are there other approaches we can take to managing scoped object lifetimes? #csharp #dependencyinjection
A Template for Clean Domain-Driven Design Architecture A software architectural template for applying Clean Domain-Driven Design and CQRS to your own solutions
CQRS: Refactoring Queries without Repositories - CodeOpinion Should you eager or lazy load navigation properties in your Aggregate Root? The answer is neither by using queries without Repositories or Aggregate Roots.
F# Publications | The F# Software Foundation F# is about clarity of thinking and expression - “computational thinking made manifest” - and is loved by academics and researchers for bringing clear, concise problem solving techniques developed in academia into practice. F# is both based on academic r...
C# and .NET Book | Covers C# 6, C# 7, .NET Framework and .NET Core A C# and .NET eBook with easy-to-follow concepts in a Q & A format. Use it build a solid foundation of .NET and C# concepts or use it for your next .NET Interview .
Putting the Fun in C# Local Functions Many popular languages support the use of local functions and in C# 7, support for them was announced with relatively little fanfare. As someone that would consider themselves a C# power-user, I seldom took advantage of the feature until I realized just h...
Configure the Linker for ASP.NET Core Blazor Learn how to control the Intermediate Language (IL) Linker when building a Blazor app.
Testing GitHub Oneboxes for Stack Overflow for Teams UPDATE: Some new features and bug fixes based on your feedback! PRs now render HTML that matches exactly with GitHub Links to the GitHub username now go to the user profile See the updates in the
Testing GitHub Oneboxes on Stack Overflow for Teams UPDATE: Some new features and bug fixes based on your feedback! PRs now render HTML that matches exactly with GitHub Links to the GitHub username now go to the user profile See the updates in the
Getting started with Uno Platform and ReactiveUI - Uno Platform Summary The article shows how to create a cross-platform Uno template app that consists of a basic NavigationView and basic ViewModel navigation capabilities, and can run on Windows, Android, iOS, and as a website (via WASM). It uses the following framewo...
Fixing Random, part 23 So… I’ve got good news and bad news. The good news is: I’ve described an interface for discrete probability distributions and implemented several distributions. I’ve shown h…
Fixing Random, part 25 Last time on FAIC we implemented the Markov process distribution, which is a distribution over state sequences, where the initial state and each subsequent state is random. There are lots of applic…
NetFabric/NetFabric.Hyperlinq High performance LINQ implementation with minimal heap allocations. Supports enumerables, async enumerables, arrays and Span<T>. - NetFabric/NetFabric.Hyperlinq
Fixing Random, part 21 Last time in this series I proposed a stripped-down DSL for probabilistic workflows. Today, let’s see how we could “lower” it to ordinary C# 7 code. I’ll assume of course th…
Fixing Random, part 19 I’ve got no code for you this time; instead here are some musings about language design informed by our discussion so far. One of the most important questions to ask when designing a language…
Document EF Core architecture and internal technical details · Issue #1920 · dotnet/EntityFramework.Docs To make it easier for contributors and provider authors to understand the code. Please comment on this issue with internal areas you would like to see documented. Working list of possible topics to...
Fixing Random, part 20 Without further ado, here’s my proposed stripped-down C# that could be a DSL for probabilistic workflows; as we’ll see, it is quite similar to both enumerator blocks from C# 2 and async…
Testing GitHub Oneboxes User Acceptance Testing Opportunity Stack Overflow for Teams feature We are excited to be this close to shipping public GitHub oneboxes on Stack Overflow for Teams. This was a highly requested fe...
Getting the best out of Entity Framework Core - NDC London 2020 | Software Developers Conference Microsoft's Entity Framework Core (EF Core) library allows anyone who can write C# and LINQ to access a database - no need to write SQL. The problem is, are you getting the best out of EF Core?
Working with expression trees in C# | Alexey Golub Expression trees is an obscure, although very interesting feature in .NET. Most people probably think of it as something synonymous with object-relational mapping frameworks, but despite being its most common use case, it’s not the only one. There…
Working with expression trees in C# | Alexey Golub Expression trees is an obscure, although very interesting feature in .NET. Most people probably think of it as something synonymous with object-relational mapping frameworks, but despite being its most common use case, it’s not the only one. There…
Make your SQLite bulk inserts very fast in C# .NET - Joe Kampschmidt's Code Learn how to increase performance with performing bulk SQLite inserts in C# .NET
.NET for Apache Spark Helps Makes Big Data Accessible | .NET Blog In this post, we explore how to use .NET for Apache Spark, which makes big data accessible to .NET developers, to perform log analysis.
bchavez/Bogus :card_index: A simple and sane fake data generator for C#, F#, and VB.NET. Based on and ported from the famed faker.js. - bchavez/Bogus
Entity Framework Core performance tuning – a worked example – The Reformed Programmer Last Updated: December 24, 2019 | Created: September 22, 2017
The frustrating state of tails calls in .NET · Issue #2191 · dotnet/runtime The frustrating state of tails calls in .NET I listened to Microsoft Language & Runtime Community standup on twitch were they said they like "aggressive" well-informed feedback from t...
Microsoft: Move from Traditional ASP.NET to 'Core' Requires 'Heavy Lifting' -- Visual Studio Magazine There are plenty of reasons to move traditional ASP.NET web apps -- part of the old .NET Framework -- to the new cross-platform direction, ASP.NET Core, but beware it will require some 'heavy lifting,' Microsoft says.
Shay Rojansky - How Entity Framework translates LINQ all the way to SQL - Dotnetos Conference 2019 Visit our website to learn more! https://conf.dotnetos.org/ Facebook: https://www.facebook.com/dotnetos/ Twitter: https://twitter.com/dotnetosorg Shay is a senior software engineering working in Microsoft's data access team, on Entity Framework Core, the...
Using LINQ to Build A World Travel Itinerary I enjoy traveling, having new experiences, and making new friends. With so many locations to get to, it is challenging to keep all of them straight. In this post, I’ll show you how to use Language Integrated Query, or LINQ, to take a list of world locatio...
Introducing EF Core 5 Features: Using ToQueryString to get generated SQL The EF team has been publishing weekly status updates since the middle of last year. Recently I have started including brief introductions for newly implemented enhancements. I’m going to exp…
Optimizing string.Count all the way from LINQ to hardware accelerated vectorized instructions A technical deep dive into SIMD accelerated C# APIs to speedup simple loop iterations
An Introduction to DataFrame | .NET Blog Last month, we announced .NET support for Jupyter notebooks, and showed how to use them to work with .NET for Apache Spark and ML.NET. Today, we’re announcing the preview of a DataFrame type for .NET to make data exploration easy. If you’ve used Python to...
StackExchange/Dapper Dapper - a simple object mapper for .Net. Contribute to StackExchange/Dapper development by creating an account on GitHub.
Shay Rojansky - How Entity Framework translates LINQ all the way to SQL - Dotnetos Conference 2019 Visit our website to learn more! https://conf.dotnetos.org/ Facebook: https://www.facebook.com/dotnetos/ Twitter: https://twitter.com/dotnetosorg Shay is a senior software engineering working in Microsoft's data access team, on Entity Framework Core, the...
Zero allocation code in C# and Unity - Seba's Lab The home of Svelto ECS and advanced Unity C# articles
A Quantum Random Number Generator for .NET: The quantum measurement problem and many-worlds approach In this post I discuss the quantum mechanical measurement problem, the Everettian many-worlds approach to it, and create a quantum RNG client for .NET
BlazorHelp Website > Blog - Uploading Images With The Blazor Rich Text Editor Microsoft Visual Studio Blazor
.NET Core, Docker, and Cultures - Solving a culture issue porting a .NET Core app from Windows to Linux In this post I describe how I fixed an issue with Cultures that arose when porting an ASP.NET Windows app to ASP.NET Core on Linux.
Using WebAssembly from .NET with Wasmtime – Mozilla Hacks - the Web developer blog How to use Wasmtime in a .NET application to load and execute WebAssembly code.
Using WebAssembly from .NET with Wasmtime Wasmtime, the WebAssembly runtime from the Bytecode Alliance, recently added an early preview of an API for .NET Core, Microsoft’s free, open-source, and cross-platform application runtime. This API enables developers to programmatically...
The Difference Between IEnumerable and IQueryable Explained – The Sharper Dev This post is part of this year’s C# Advent Series. Which counts down to Christmas with two C# articles published every day from Dec 1 – Dec 25.
dotnet/efcore EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. - dotnet/efcore
HttpClient Connection Pooling in .NET Core - Steve Gordon In this post, we examine the connection pooling and lifetime management built into HttpClient from .NET Core 2.1 as part of the default SocketsHttpHandler.
Ed Charbeneau - Giving Clarity to LINQ Queries by Extending Expressions | Øredev 2019 In this session we’ll learn about .Net Expression trees by discovering how they work and applying the knowledge to LINQ using the pipes and filters pattern.…
Building Modern Cloud Applications using Pulumi and .NET Core | .NET Blog This is a guest post from the Pulumi team. Pulumi is an open source infrastructure as code tool that helps developers and infrastructure teams work better together to create, deploy, and manage cloud applications using their favorite languages. For more i...
【Unite Tokyo 2019】Understanding C# Struct All Things 2019/9/25-6に開催されたUnite Tokyo 2019の講演スライドです。 河合 宜文（株式会社Cysharp） こんな人におすすめ ・C#を極めたいエンジニア ・パフォーマンスに興味のあるエンジニア ・プログラミング言語マニア 受講者が得られる知見 ・structに関する深い知識 ・パフォーマンス向上の…
spboyer/dotnet-workshops A Collection of .NET Workshops . Contribute to spboyer/dotnet-workshops development by creating an account on GitHub.
Generate Json serializers at build time to reduce startup time · Issue #1568 · dotnet/runtime The generation of Json serializers via reflection at runtime has non-trivial startup costs. This has been identified as a bottleneck during prototyping of fast small cloud-first micro-services: Rep...
Anonymous classes and generics limit in .NET/C#? | tabs ↹ over ␣ ␣ ␣ spaces by Jiří {x2} Činčura 14 Oct 2019 .NET, .NET Core, C#
IHttpContextAccessor cannot be used reliably in some scenarios · Issue #14975 · dotnet/aspnetcore The IHttpContextAccessor is used to access the HttpContext during the current request from components that were not given an explicit reference. The typical use case is something like this: public ...
BlazorHelp Website > Blog - Blazor Microsoft Graph Calendar Example With Active Directory Authentication Microsoft Visual Studio Blazor
Expand BBJ_RETURN blocks with bool conditions by EgorBo · Pull Request #27167 · dotnet/coreclr Expand BBJ_RETURN basic blocks with boolean conditions, let me explain it via a pic: So it basically de-optimizes the control flow (optimized by Roslyn) but makes it a bit more friendly for optimi...
Implementation of efficient algorithm for changepoint detection: ED-PELT Implementation of efficient algorithm for changepoint detection: ED-PELT
What’s the maximum number of generic parameters for a class in .NET/C#? | tabs ↹ over ␣ ␣ ␣ spaces by Jiří {x2} Činčura 4 Oct 2019 .NET, .NET Core, C#
BlazorHelp Website > Blog - Google Authentication in Server Side Blazor Microsoft Visual Studio Blazor
novotnyllc/NuGetKeyVaultSignTool Contribute to novotnyllc/NuGetKeyVaultSignTool development by creating an account on GitHub.
terrajobst/api-review-list Contribute to terrajobst/api-review-list development by creating an account on GitHub.
dotnet/docs This repository contains .NET Documentation. Contribute to dotnet/docs development by creating an account on GitHub.
Announcing Entity Framework Core 3.0 Preview 9 and Entity Framework 6.3 Preview 9 | .NET Blog The Preview 9 versions of the EF Core 3.0 package and the EF 6.3 package are now available for download from nuget.org. These are the last planned previews before we release the final versions later this month. We have almost completely stopped making cha...
Static analysis for .NET 5 · Issue #30740 · dotnet/runtime In FxCop's hey day, many rules were written to help validate the correctness and performance of .NET code. .NET has evolved significantly since then, however, and the creation of new rules has ...
Entity Framework Core in Action An expertly written guide to EF Core—quite possibly the only reference you’ll ever need.
Making my first contribution on SourceForge using Mercurial In this post I describe my experience of making my first contribution to a project on SourceForge, using the Mercurial version control system.
Script #Script is a simple, fast, highly versatile and embeddable scripting language for .NET Core and .NET Apps that utilizes a familiar JavaScript inspired expressive Syntax to enable dynamic scripting of .NET Apps via controlled access to pl...
WinDbg #1 - The static root – Gabriel Weyer – A somewhat technical blog Pinpointing a static GC root with WindDbg and SOS.
.NET Debugging: 6 techniques you need in your arsenal | Raygun Blog Debugging is hard. That's why we're sharing six techniques will help make your .NET debugging sessions less stressful and more productive.
Getting Started with gRPC Client Factory - Steve Gordon This post describes the steps required to register a client using the gRPC Client Factory feature in ASP.NET Core 3.0 using Grpc.Net.ClientFactory.
Announcing Entity Framework Core 3.0 Preview 8 and Entity Framework 6.3 Preview 8 | .NET Blog The Preview 8 version of the EF Core 3.0 and EF 6.3 packages are now available in nuget.org. Learn about the latest improvements.
Build Data-Driven Web Apps Blazing Fast with Blazor and OData Build data-driven .NET applications with seamless client-server communication using fluent C# LINQ over OData (like GraphQL but without the JSON).
Breaking all existing Hex Encoding Records with .NET Core 3.0 - Nicolas Portmann - .NET / Java / Security A blog about C#, .NET, Java, InfoSec and Cryptography.
Fixing Random, part 40 of 40 All right, let’s finish this thing off! First, I want to summarize, second I want to describe a whole lot of interesting stuff that I did not get to, and third, I want to give a selection of papers…
Flow External Claims to the Main Identity How to flow or persist additional external claims from an external login/authentication provider such as Google.
Supporting IAsyncEnumerable with LINQ With IAsyncEnumerable being introduced in .NET Core 3, it's not surprising that developers might want to leverage their existing knowledge of Linq operations when working with async streams. In this e
wasm: support Generic Virtual Method Calls & Shared Generics (was: some linq methods fail to compile) · Issue #7248 · dotnet/corert When attempting to build an Uno Platform project, it fails on a method {[System.Linq]System.Linq.Enumerable+Iterator`1<Windows.UI.Xaml.Documents.Inline>.Select<string>(Func``2<Inline...
#124 Mads Torgersen, C# 8 | no dogma podcast Summary Mads Torgersen talks about the upcoming release of C#, what's new, what's different, what else is coming in the future. He also answers questions from Twitter.
Initial commit · OmniSharp/omnisharp-roslyn@a8f9786 - New omnisharp based on ASP.NET 5 and roslyn workspaces
Announcing Entity Framework Core 3.0 Preview 6 and Entity Framework 6.3 Preview 6 | .NET Blog New previews of the next versions of EF Core and EF 6 are now available on NuGet.Org. What is new in EF Core 3.0 Preview 6 In recent months, a lot of our efforts have been focused on a new LINQ implementation for EF Core 3.0.
Building a C# Interactive shell in a browser with Blazor (WebAssembly) and Roslyn | StrathWeb. A free flowing web tech monologue. In this post I wanted to show you how to write and embed a C# interactive shell (a REPL – read-evaluate-print-loop) in a browser, on top of WebAssembly.
Serializing a PascalCase Newtonsoft.Json JObject to camelCase In this post I describe one of the quirks of serializing a JSON.NET JObject, and show how to get camelCase names from a PascalCase JObject.
Collection<T> and ObservableCollection<T> do not support ranges · Issue #18087 · dotnet/runtime Update 10/04/2018 @ianhays and I discussed this and we agree to add this 6 APIs for now: // Adds a range to the end of the collection. // Raises CollectionChanged (NotifyCollectionChangedAction.Add...
Change filter to middleware · dotnet-presentations/aspnetcore-app-workshop@7715b4f This workshop will teach you ASP.NET Core by building a complete conference management website from scratch. - dotnet-presentations/aspnetcore-app-workshop
Announcing Entity Framework 6.3 Preview with .NET Core Support | .NET Blog The first preview of the EF 6.3 runtime is now available in NuGet. Note that the package is versioned as 6.3.0-preview5. We plan to continue releasing previews of EF 6.3 every month in alignment with the .NET Core 3.0 previews, until we ship the final ver...
Announcing Entity Framework Core 3.0 Preview 4 | .NET Blog Today, we are making the fourth preview of Entity Framework Core 3.0 available on NuGet, alongside .NET Core 3.0 Preview 4 and ASP.NET Core 3.0 Preview 4. We encourage you to install this preview to test the new functionality and assess the impact of the ...
Entity Framework Weekly Status Updates (2019) · Issue #15403 · dotnet/efcore Weekly status updates for 2020 can be found at: #19549 Expand to see additional information from the end of 2019... This discussion issue contains status updates from the Entity Framework team to p...
Introducing .NET for Apache® Spark™ Preview | .NET Blog Today at Spark + AI summit we are excited to announce .NET for Apache Spark. Spark is a popular open source distributed processing engine for analytics over large data sets. Spark can be used for processing batches of data, real-time streams,
Using strongly-typed entity IDs to avoid primitive obsession (Part 3) In this post I discuss using strongly-typed IDs with EF Core by using value converters. Unfortunately this has some issues I only partially fix in this post
Adding features to a simple Blazor MVVM client with composition This is the third article of a series that details one way to implement the MVVM pattern in client side Blazor. If you would like to start…
Adding features to a simple Blazor MVVM client with composition This is the third article of a series that details one way to implement the MVVM pattern in client side Blazor. If you would like to start…
Adding features to a simple Blazor MVVM client with composition This is the third article of a series that details one way to implement the MVVM pattern in client side Blazor. If you would like to start…
Live Share now included with Visual Studio 2019 | Visual Studio Blog Real-time collaborative development. We’re excited to announce the general availability of Visual Studio Live Share and included with Visual Studio 2019!
Visual Studio 2019 .NET productivity | .NET Blog Top .NET productivity improvements in Visual Studio 2019 including code fixes, refactorings, code cleanup, smarter intellisense, and more!
nventive/Uno.BenchmarkDotNet Powerful .NET library for benchmarking. Contribute to nventive/Uno.BenchmarkDotNet development by creating an account on GitHub.
gRPC Bi-directional streaming with Razor Pages and a Hosted Service gRPC client This article shows how a Bi-directional streaming gRPC service could be implemented using an .NET Core Hosted Service as a gRPC client, and a Razor Page to send Bi-directional streaming messages to…
An update on how my 2018 return to Chicago went and what's next for me in 2019 An update on how my 2018 return to Chicago went and what's next for me in 2019 - whats-next-for-anthony.md
Security Experiments with gRPC and ASP.NET Core 3.1 This article shows how a gRPC service could implement OAuth2 security using IdentityServer4 as the token service. Code: Posts in this series Security Experiments with gRPC and ASP.NET Core 3.1 Runn…
Announcing .NET Core 3 Preview 3 | .NET Blog Today, we are announcing .NET Core 3.0 Preview 3. We would like to update you on the .NET Core 3.0 schedule and introduce you to improvements in .NET Core SDK installers, Docker containers, Range, and Index. We also have updates on the Windows Desktop and...
dotnet/reactive The Reactive Extensions for .NET. Contribute to dotnet/reactive development by creating an account on GitHub.
dotnet/docs This repository contains .NET Documentation. Contribute to dotnet/docs development by creating an account on GitHub.
Combining iterator blocks and async methods in C# | Premier Developer One of the best traits of a well-designed system is composability. Large systems are complex and hierarchical and one of the best ways to fight accidental complexity is to compose a system from smaller components. You write and test each component indepen...
On DOTS: C++ & C# - Unity Technologies Blog This is a brief introduction to our new Data-Oriented Tech Stack (DOTS), sharing some insights in how and why we got to where we are today, and where we’re going next. We’re planning on posting more about DOTS on this blog in the near future. Let’s talk a...
Visual Studio 2019 Preview .NET Productivity | .NET Blog As you hopefully heard, the first preview of Visual Studio 2019 is now available. In this post I’ll cover some of the productivity improvements for .NET developers we’re most excited about. For a complete list, check out the release notes. Regex Language ...
.NET Blog Entity Framework Core 2.2 Preview 3 Now Available! Entity Framework Core 2.2 Preview 3 available with a new preview of our data provider for Cosmos DB and updated spatial extensions for various providers.
Unit testing data access in ASP.NET Core Recently I got asked to explain how to unit test a controller that retrieves data using an entity Framework Core DbContext. In this post I'm going to show you how to use GenFu, Moq and XUnit to create small and isolated unit tests for your ASP.NET Core ap...
10 Years of Workshop Material Added to the Creative Commons I’ve kept most of my workshop and conference materials in a private GitHub repository for years. I recently made the repository public and added a CC-BY-4.0 license. The material includes slides, and hands-on labs, too. Some of the workshops are old (you’...