Categories: .NET (416 posts)

2024

• Embeded languages in string values supported by Roslyn
• Stop using diagnostic verbosity in MSBuild
• Listing all cloud folders in Windows using .NET
• How to remove diacritics from a string in .NET
• Understanding OverloadResolutionPriority attribute in C# 13
• Using Mutex<T> to synchronize access to a shared resource
• Waiting for a ManualResetEventSlim to be set asynchronously
• Automated tests
• Useful resources to write Roslyn Analyzers
• Enable NuGet auditing for your .NET projects
• Activator.CreateInstance(Type) may return null
• How to output a SARIF file from a .NET project
• Create a multi-arch Docker image for a .NET application
• How to test a Roslyn analyzer
• Roslyn analyzers: How to
• How to avoid conflicts when testing your dotnet templates locally
• How to check if a DLL and an exe is a .NET assembly
• How to use the latest target framework available for a .NET SDK
• Using type aliases to make code clearer with generics
• Computing code coverage for a .NET project
• Creating ico files from multiple images in .NET
• Json schema validation in .NET
• Convert DateTime to user's time zone with Blazor in .NET 8
• Generate OpenAPI specification at build time from the code in ASP.NET Core
• Optional parameters may appear in the middle of the parameter list
• Enable AutoLogin in Windows using .NET
• Getting all exceptions thrown from Parallel.ForEachAsync
• Creating an HttpClient that uses DNS over Https
• Enable the new TerminalLogger in .NET 8 SDK automatically
• Checking if a collection is empty in C#
• How to get assembly code generated by the JIT for a C# method
• Difference between CultureInfo.Get and new CultureInfo
• Making primary constructor parameters read-only
• Getting a handle for a directory in .NET

2023

• Weak events in C#
• Resilient HttpClient with or without Polly
• Inline Snapshot testing in .NET
• Embedding additional files in an MSBuild binary log file
• Removing allocations by reducing closure scopes using local variables
• Reading a stream of JsonDocuments separated by new lines (ndjson)
• File paths in a Roslyn analyzer or source generator
• Customizing the behavior of record copy constructors
• Customizing the name of embedded resources in .NET
• Get the default value of a type at runtime
• How to test the logs from ILogger in .NET
• How to write logs from ILogger to xUnit.net ITestOutputHelper
• Accessing private members without reflection in C#
• Listing Windows virtual desktops using .NET
• How to stay up to date with .NET
• Supporting custom protocols in WebView2
• Sharing object between .NET host and WebView2
• Polyfills in .NET to ease multi-targeting
• Analyzer to validate the parameters of structured log messages
• Micro-optimization: Concatenating a string with a char using string.Concat
• How to access the Roslyn compilation from a VS extension
• How to use RuntimeHelpers.IsReferenceOrContainsReferences to micro-optimize collections
• Debug ASP.NET Core application configuration
• How to detect Globalization-Invariant mode in .NET
• How to Control Visual Studio from an external application
• Reading Windows Application Manifest of an exe in .NET
• Detecting Dark and Light themes in a WPF application
• Investigating a crash in Enumerable.LastOrDefault with a custom collection
• Listing all available ETW events in a .NET application
• Handling CancelKeyPress using a CancellationToken
• Too many timers in .NET?
• Measuring performance of Roslyn Source Generators
• Testing Roslyn Incremental Source Generators
• Extending the System Menu to add advanced commands in .NET
• Creating a custom Main method in a WPF application
• Prevent accidental disclosure of configuration secrets
• Using source-generated regex in ASP.NET Core route constraints
• Mocking an HttpClient using ASP.NET Core TestServer
• Using .NET code from JavaScript using WebAssembly
• Reducing Blazor WASM size by providing custom ICU data
• Detecting breaking changes between two versions of a NuGet package at packaging time
• C# 11 List Patterns - Create compatible types

2022

• Generating a dump file when tests hang on a CI machine
• Prevent http requests to external services in unit tests
• Starting a process as normal user from a process running as Administrator
• Killing all child processes when the parent exits (Job Object)
• Debugging tips and tools
• New rules for Blazor in Meziantou.Analyzer
• Configuring Visual Studio to manage using directives automatically
• Publishing a NuGet package using GitHub and GitHub Actions
• Ensuring best practices for NuGet packages
• How to generate a dump file of a .NET application
• Writing unsafe .NET code without the unsafe keyword
• Detecting Double-Writes in MSBuild using the binlog
• Getting user consent before executing sensitive code
• Performance: string.Create vs FormattableString
• Regex with IgnoreCase option may match more characters than expected
• Generating PInvoke code for Win32 apis using a Source Generator
• Faster and Safer NuGet restore using Source Mapping and Lock files
• Using IAsyncEnumerable in a Razor component
• Replace characters in a string using Vectorization
• Finding the maximum value in an array using vectorization
• Faster Guid comparisons using Vectors (SIMD) in .NET
• Observing all http requests in a .NET application
• Round-robin DNS support in .NET HttpClient
• Performance: Lambda Expressions, Method Groups, and delegate caching
• Copying a collection: ToList vs ToArray
• Getting telemetry data from inside or outside a .NET application
• Sharing coding style and Roslyn analyzers across projects
• How to list all routes in an ASP.NET Core application
• Uploading multiple files using InputFile in Blazor
• Forcing HttpClient to use IPv4 or IPv6 addresses
• Converting code to the new Regex Source Generator
• Performance benefits of sealed class in .NET
• Validating a Blazor Form on the first render
• Executing code before Main in .NET
• Debugging a WebView2 component using Playwright in .NET
• Avoid DNS issues with HttpClient in .NET
• Parallelize test cases execution in xUnit
• Awaiting an async void method in .NET
• Deleting GitHub Actions artifacts using the GitHub REST API
• Using HTTP/3 (QUIC) in .NET

2021

• Getting Roslyn (C# compiler) and Language versions
• Remove those useless File.Exists calls
• Fastest way to enumerate a List<T>
• Distributing applications that depend on Microsoft.Playwright
• Updating your project to use File Scoped Namespaces
• Monitoring a .NET application using OpenTelemetry
• File upload with progress bar in Blazor
• Creating a search engine for websites using Elasticsearch and Playwright
• Downloading a SSL/TLS certificate in .NET
• I fixed a bug. What should I do now?
• Generate PDF files using an html template and Playwright
• Investigating an infinite loop in Release configuration
• How not to read a string from an UTF-8 stream
• Exploring the NuGet client libraries
• Enabling Reproducible builds when building NuGet packages
• Prevent refreshing the UI after an event in Blazor
• Reducing the length of GUIDs in URLs or Json payloads
• Configuring JSON options in ASP.NET Core
• Upload files with drag & drop or paste from clipboard in Blazor
• Removing elements after an animation in Blazor
• How to measure elapsed time without allocating a Stopwatch
• Supporting Hot Reload in your .NET application
• Infinite scrolling in Blazor
• Exploring Fluent Assertions
• Caching Enum.ToString to improve performance
• Different ways to check if a value is null in C#
• The Roslyn analyzers I use in my projects
• Finding concurrency bugs in a .NET application using Coyote
• Debugging a .NET assembly without the source code with Visual Studio
• Understanding the impact of Roslyn Analyzers on build time
• Debouncing / Throttling JavaScript events in a Blazor application
• Convert SVG files to PNG or JPEG using .NET
• Building .NET projects using the Microsoft.Build.Traversal SDK
• Using raw html with isolated CSS in Blazor
• Be careful when mixing ValueTask and Task.Run
• Rewriting git history using C# (git filter-branch alternative)
• Binding decimal numbers using the oninput event in Blazor
• Running npm tasks when building a .NET project
• Strongly-typed Ids using C# Source Generators
• Multi-targeting a Roslyn analyzer
• Packaging a Roslyn Analyzer with NuGet package references
• Correctly converting a character to lower/upper case
• Automatically generate a form from an object in Blazor
• Simplifying paths handling in .NET code with the FullPath type
• Canceling background tasks when a user navigates away from a Blazor component
• Defining NuGet restore sources in the csproj

2020

• Caching an IEnumerable<T> instance
• Never forget a #if when multi-targeting .NET libraries or applications
• Using .NET and PowerPoint to generate cover images
• Investigating a performance issue with a regex
• C# 9 - Improving performance using the SkipLocalsInit attribute
• Process.WaitForExitAsync is not the async equivalent of Process.WaitForExit in .NET 5
• Rendering raw/unescaped HTML in Blazor
• C#9 - init-only properties are not read-only at runtime
• How to get ASP.NET Core logs in the output of xUnit tests
• Optimizing Blazor performance using the @key directive
• Enumerating files using Globbing and System.IO.Enumeration
• Publishing a self-contained Blazor component (Razor + CSS + JS) as a NuGet package
• Capturing unmatched attributes and attribute splatting in Blazor
• Testing Blazor components using bUnit
• Creating a reusable loading indicator in Blazor
• Writing automated UI tests for ASP.NET Core applications using Playwright and xUnit
• Validating an input on keypress instead of on change in Blazor
• Streaming an HTTP response in Blazor WebAssembly
• Deploying a .NET desktop application using MSIX
• JavaScript Isolation in Blazor Components
• Calling public methods on Blazor component from another component
• CSS isolation in Blazor
• Lazy load assemblies in a Blazor WebAssembly application
• Using foreach with IEnumerator<T> / IAsyncEnumerator<T> in C# 9
• Copying text to the clipboard in a Blazor application
• Anchor navigation in a Blazor application
• How to use event.PreventDefault in Blazor
• Splitting code and markup into different files when creating a Blazor component
• Running and debugging a .NET Core application in WSL 2 from Visual Studio
• Optimizing a Blazor WebAssembly application size
• Using SQL Server HierarchyId with Entity Framework Core
• Showing a confirm dialog before doing an action in Blazor
• How to prevent the UI from freezing while executing CPU intensive work in Blazor WebAssembly
• Dynamically setting the page title in a Blazor application
• Avoid performance issues with JsonSerializer by reusing the same JsonSerializerOptions instance
• Checking if a property is an auto-implemented property in Roslyn
• Bypass HTTP browser cache when using HttpClient in Blazor WebAssembly
• Preventing double form submission in a Blazor application
• Auto focus an input element in a Blazor form on page load
• Binding parameters from the query string in a Blazor component
• Enforcing asynchronous code good practices using a Roslyn analyzer
• Generating and efficiently exporting a file in a Blazor WebAssembly application
• Optimizing JS Interop in a Blazor WebAssembly application
• Storing user settings in a Blazor WebAssembly application
• Detecting missing CancellationToken using a Roslyn Analyzer
• Creating a DataGrid component in Blazor
• ASP.NET Core Blazor components lifecycle
• Creating a Modal component in Blazor
• Exploring two-way binding in Blazor
• Creating a InputSelect component for enumerations in Blazor
• Showing a loading screen while initializing a Blazor application
• Customizing the Blazor WebAssembly loading screen
• Convert DateTime to user's time zone with server-side Blazor
• Creating a Repeater component with Blazor
• Publishing a Blazor WebAssembly application to GitHub pages
• Integrating Blazor components into Razor Pages and MVC apps
• Versioning an ASP.NET Core API
• Security headers in ASP.NET Core
• Per virtual desktop single-instance application
• Handling aborted requests in ASP.NET Core
• Don't use methods with side-effects in LINQ
• Get the result of multiple tasks in a ValueTuple and WhenAll
• Referencing an analyzer from a project
• Quick introduction to xUnit.net
• Split a string into lines without any allocation
• Show unnecessary imports in the Visual Studio's error window
• Sanitize HTML snippets with AngleSharp
• Using Windows Antimalware Scan Interface in .NET
• ASP.NET Core - JSON logger
• Optimize struct performances using StructLayout
• Struct equality performance in .NET
• How to correctly count the number of characters of a string
• How to protect against XML vulnerabilities in .NET
• Enforce .NET code style in CI with dotnet format
• Check if the current user is an administrator
• Prevent Zip Slip in .NET
• Deserialization can be dangerous

2019

• Thread-safe observable collection in .NET
• Declaring InternalsVisibleTo in the csproj
• Fire and forget a Task in .NET
• How to use C# 8 Indices and Ranges in .NET Standard 2.0 and .NET Framework
• How to use Nullable Reference Types in .NET Standard 2.0 and .NET Framework
• C# 8: Nullable Reference Types
• Regex - Deny of Service (ReDoS)
• Nullable<T>: Value vs GetValueOrDefault() in term of performance
• Custom certificate validation in .NET
• StringBuilder performance best practices
• How to avoid storing secrets in the source code?
• Implementing Two-factor authentication in an ASP.NET Core application
• Automatically log in a user on a website using the Credential Management API?
• Helping users to create good passwords
• How to prompt for a password on Windows?
• How to store a password on Windows?
• How to store a password in a web application?
• Cryptography in .NET
• CI/CD pipeline for a Visual Studio extension (VSIX) using Azure DevOps
• Stop using IntPtr for dealing with system handles
• .NET Regex: \d is different from [0-9]
• Creating a FontAwesome bundle with only the icons you use
• ConcurrentDictionary + closure = 💔
• String comparisons are harder than it seems
• Some performance tricks with .NET strings
• Computing code coverage for a .NET Core project with Azure DevOps and Coverlet
• Working with types in a Roslyn analyzer
• Writing language-agnostic Roslyn Analyzers using IOperation
• Loading stylesheets asynchronously using a TagHelper in ASP.NET Core

2018

• Writing a Roslyn analyzer
• Inlining a Stylesheet, a JavaScript, or an image file using a TagHelper in ASP.NET Core
• Inlining a stylesheet using a TagHelper in ASP.NET Core
• Integrating Google Analytics using dependency injection in ASP.NET Core
• Smart enums / Type-safe enums in .NET
• Use structures to improve the readability of your code
• Integration testing using a docker container
• Getting the date of build of a .NET assembly at runtime
• Exploring a MSBuild binary log using the binary log viewer
• Merging assemblies using ILRepack
• A tool to help you identify unused CSS rules
• C# compiler strict mode
• How to debug NuGet packages using SourceLink
• How to enforce a consistent coding style in your projects
• How to publish a dotnet global tool with .NET Core 2.1
• JWT authentication with ASP.NET Core
• Cancelling Console.Read
• Detecting console closing in .NET
• Load native libraries from a dynamic location
• MSTest v2: Testing against multiple frameworks
• MSTest v2: Execute tests in parallel
• MSTest v2: Customize test execution
• MSTest v2: Create new asserts
• MSTest v2: Test lifecycle attributes
• MSTest v2: Data tests
• MSTest v2: Exploring asserts
• MSTest v2: Setup a test project and run tests
• Live unit testing in Visual Studio 2017 Enterprise
• Filter Application Insights events in ASP.NET Core

2017

• Performance: string concatenation vs String.Format vs interpolated string
• Interpolated strings: advanced usages
• Comparing implementations with BenchmarkDotnet
• Mocking an HttpClient using an HttpClientHandler
• Display toast notifications in a WPF application
• Testing EF Core in Memory using SQLite
• Starting a http file server from the file explorer using .NET Core 2.0 and Kestrel
• Debugging your .NET application more easily
• 4 ways to enable the latest C# features
• Testing an ASP.NET Core application using TestServer
• Entity Framework Core: History / Audit table
• Application Insights - Track HTTP Referer
• Suppress "Use 'throw' expression" suggestion
• Entity Framework Core: Specifying data type length and precision
• Entity Framework Core: View the model as text
• Validating user with cookie authentication in ASP.NET Core 2
• Use brotli compression with ASP.NET Core
• Analyse your code with NDepend
• Entity Framework Core: Soft Delete using Query Filters
• InternalsVisibleTo with strong-named assemblies
• Entity Framework Core: Generate tracking columns
• Using the Google Translate API in .NET or .NET Core
• Entity Framework Core: Naming Convention
• Cookie authentication in ASP.NET Core 2 without ASP.NET Identity
• Minimal ASP.NET Core Web API project
• Continuously publishing Nuget package to MyGet using VSTS
• Post-Redirect-Get and TempData with ASP.NET Core
• ASP.NET Core - Precompiling razor views
• FileSystemWatcher intermittently throws an exception on Linux
• Creating a chat bot from a FAQ with Azure Q&A Maker
• Mixed producer-consumer scenario in .NET
• Starting a http file server from the file explorer using .NET Core
• Publishing an ASP.NET Core website to a Linux host
• Registering an Application to a URI Scheme using .NET (custom protocol)
• Use Application Insights in a desktop application
• Generate a changelog from VSTS work items
• Improve the security of your website using SSL and HSTS with ASP.NET Core
• Get the localization and time zone of your visitors
• Quickly insert millions of rows in SQL Server in .NET
• Advanced email address validation in .NET
• Minify CSS and JavaScript files with Visual Studio and ASP.NET Core
• Enabling gzip compression with ASP.NET Core
• Caching static resources forever with ASP.NET Core
• Easily manage command-line arguments

2016

• Page redirection and URL Rewriting with ASP.NET Core
• Using Web Sockets with ASP.NET Core
• Using Let's encrypt with ASP.NET Core
• Give focus to a ComboBox editable in WPF
• IIS Express & SSL

2015

• To CDN or not to CDN? Why do you need to choose?
• ASP.NET 5 & Static Files
• SQL Geography, Google Maps & Geolocalisation
• Debugging a .NET assembly without the original source code using DotPeek
• Scan a document with Windows Image Acquisition
• SQL Server - Discovering the HierarchyId data type
• Utiliser l'API de OneDrive depuis une application Windows
• Using FontAwesome in a WPF application
• ASP.NET WebForms Validators & Bootstrap
• Application Recovery and Restart

2014

• Prevent Windows shutdown or session ending in .NET
• SignalR and Fiddler
• Detect the opening of a new window in C#
• Introduction to GoldParser
• Run a SQL batch containing "GO" in C#
• Export a list of .NET objects to Excel
• Easy reflection using a DynamicObject
• Test the connection to a SQL Server database
• How to bind an enum to a ComboBox in WPF
• Single instance of an application in C#
• Write more generic WPF Converters
• Creating a Parser for Boolean Expressions
• OWIN and Katana - Creating an authentication middleware
• Web API & HTTP Basic Authentication
• Sauvegarder un mot de passe dans une Windows Store App
• How to run a scheduled task
• Windows Credential Manager
• Access the WinRT API from a desktop application
• Combine multiple .NET assemblies
• Presentation of ExportSrc
• View and edit the Tab Order of Windows Forms Controls

2013

• Code Contracts
• PEX & Code Digger

2012

• HotKey – Global shortcuts
• Impersonation and security
• Computing the size of a folder
• Binding the VisualStateManager to a property
• Choosing the right data structure
• Install Windows Phone 7 Developer Tools on Windows Server 2008R2

2011

• Performance test on empty string
• Using Bing Translation in .NET
• Unit tests with a WPF window
• Is the code coverage a sufficient metric
• ExcludeFromCodeCoverage Attribute
• Merge code coverage results
• Enable code coverage in Visual Studio 2010
• Validation with PostSharp
• Cloning an object in .NET
• IEnumerable.Any() or IEnumerable.Count() != 0
• List all files in a folder and its subfolders with linq
• Using SecureString
• Easily use the Entity Framework cache
• Universal value converter
• The var keyword
• Access private members of a class using reflection
• Singleton and Lazy<T>
• Pluralize or singularize names
• How to retrieve SQL generated from a LINQ to Entities query
• Generic WeakReference
• Refresh a WPF control
• What's the usage of AsEnumerable
• Accessing a nested type from xaml
• Serialize DependencyObjects
• Freezable objects
• Subscribe to routed events even if they are handled
• UI and threads with WPF
• Do not show the designer when opening a xaml file
• Subscribe to events launched by children of an ItemsControl
• MVVM – Model-View-ViewModel
• String.IsNullOrWhiteSpace