Global query filters in EF Core

Say goodbye to the hassle of having to manually set a default filter for every query EF Core provides a useful feature called Global Query Filters. It enables you to apply a filter to all queries sent to the database. Two examples of how this feature can be practically used...

.NET — LinkedList vs ToArray

Performance comparison between LinkedList and ToArray Some weeks ago I created an article comparing the performance of ToList versus ToArray when creating short lived collections that won’t be mutated, usually used to prevent multiple enumerations when iterating over a temporary LINQ transformation or to ensure mapping exceptions will be thrown...

Caching strategies in .NET Core

Introduction Caching is a technique used to store frequently accessed data in a fast-access storage layer to improve application performance and reduce the load on backend systems. By serving data from the cache, we can avoid expensive database queries or API calls, resulting in faster response times and improved scalability....

.NET — ToList vs ToArray

Performance comparison between ToList and ToArray Ever since Microsoft introduced Language Integrated Query to the .NET framework (also known as LINQ) developers have been using it extensively to work with collections. From a simple filter, to an aggregation, to a transformation, LINQ is the technology of choice to keep code...

.NET | Working with options pattern

Another way to read data from the configuration data Options pattern introduction Options pattern is a flexible configuration data management way that enables us to use strongly typed configurations. It uses classes to bind groups of related configurations. We can inject these classes via dependency injection with IOptions<T> to include...

Background services in .NET Core

Creating background services in .NET Core is a powerful way to perform long-running, background tasks that are independent of user interaction. These tasks can range from data processing, sending batch emails, to file I/O operations — all critical for today’s complex application ecosystems. This guide delves deep into the architecture,...

Зачем нужен MediatR?

Недавно я натолкнулся в нашем коде на использование пакета MediatR. Это заинтересовало меня. Почему я должен использовать MediatR? Какие преимущества он мне предоставляет? Здесь я собираюсь рассмотреть эти вопросы. Как пользоваться MediatR На базовом уровне использование MediatR очень просто. Сначала вы устанавливаете NuGet пакет MediatR. В вашем приложении будет...

Understanding deadlocks in C# and .NET Core

The Deadlock Dilemma 🔒 In the world of multithreaded programming, deadlocks lurk like silent assassins, waiting to strike when you least expect it. A deadlock occurs when two or more threads become entangled in a vicious cycle, each holding a resource that the other needs, resulting in a perpetual stalemate....

Delegates in C#: A comprehensive guide

Introduction Delegates are a fundamental concept in C# that allow you to treat methods as objects. They provide a way to define a type that represents a reference to a method, enabling you to encapsulate and pass around methods as parameters, store them in variables, and invoke them whenever needed....

Dynamic querying in C#: Real-world scenarios and techniques

Imagine crafting a library app where users effortlessly find books by title, author, or genre. Traditional search methods drown you in code. But fear not! Dynamic Querying in C# saves the day. In our tale, crafting separate search methods for each book attribute becomes a headache. The code becomes a...

Creating functions that return multiple values in C#

Creating functions that return multiple values in C# is an essential skill, especially when working with .NET Core applications. This article delves into various advanced strategies to return multiple values from functions, providing a deeper understanding of each approach with practical, real-world examples. 1. Using Tuples Problem Statement: You need...

➤ Interview Questions

Top 7 popular interview questions for Senior .NET Developer

During interviews for senior .NET developer positions, technical questions are often asked to test skills and understanding. This article contains seven commonly asked questions based on my experience in various .NET developer interviews, both as an interviewer and a candidate. 1. How to implement asynchronous programming? Asynchronous programming in .NET...

Schedule Cron jobs in .NET using Hangfire

If you’re a .NET developer, chances are you’ve had to deal with scheduling tasks at some point. Cron jobs are a common way to do this, but they can be tedious to set up and maintain. Enter Hangfire, a powerful and easy-to-use library that simplifies scheduling Cron jobs in .NET....

Scheduling background jobs with Quartz.NET

Background tasks are crucial in many software applications, and scheduling them to run periodically or at specific times is a common requirement. In the .NET ecosystem, Quartz.NET provides a robust and flexible framework for scheduling such tasks. Let’s delve into what Quartz.NET is, why it is useful, and how we...

➤ Cloud Computing

Building a .NET distributed application with DAPR and Azure Container Apps

DAPR is an abbreviation for Distributed APplication Runtime. As the name implies, it’s useful for container-based, distributed architectures. It makes life easier when it comes to: Service Discovery. When you deploy multiple instances of your application, then how do you find them? This is where DAPR comes to the rescue....

You can run a single monolithic instance of a server application only if the number of clients accessing your application doesn’t exceed a couple of thousand. But what if you expect hundreds of thousands, or even millions, of clients to connect to your application simultaneously? Then a single instance...

In C# applications, null reference exceptions are frequently the cause of problems and runtime failures. Appropriate null checks are necessary to protect your code from these kinds of problems. This article will examine many approaches to doing null checks in C#, go over the recommended approach, and provide examples...

At some point in our careers, many of us have found ourselves working on a project that requires performance tuning The need to write high performance .NET code should come from performance issues or business needs. Today, we’ll take a look at just a few of the ways we can...

Use the Bogus library to generate and insert 1 million dummy product data into the SQL Server database We need to create 1 million dummy product data into the SQL Server database, which can be used for development or performance testing purposes. The Project The project is a console application...

There is a simple solution just around the corner Null as a return value is so easy to implement, but it brings many problems. So people make mistakes. That is part of being human. Sometimes it turns out to be a billion-dollar mistake. “I call it my billion-dollar mistake. It...