Dev Leader

IEnumerable in C# – A Simplified Beginners Guide

In C# and .NET, as programmers we have access to an interface that is called IEnumerable (or IEnumerable<T> for the generic version). Using IEnumerable allows us to iterate from a collection or data source by moving one element at a time. It's also important to note that all collection types in C# inherit from IEnumerable so collections you are familiar with like arrays and lists implement IEnumerable. I have been trying to help educate around IEnumerable usage for many years now so this is a renewed effort to help get more junior developers understanding how they work. As a bonus, if you're interested in working with the code that you see in this article you can clone it down from GitHub by visiting this link. Simple IEnumerable Example Let's consider the following code example that will create an array of…

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February 5, 2023

Beginner / Programming

Everything You Wanted to Know About Multiline Strings

Working with strings is probably one of the earliest things we get to do as C# developers. In fact, if you consider that most of us start with the "Hello, World!" example, you're being exposed to the string type right away. But as you continue to use strings, you'll quickly find that you want to work with strings that span multiple lines and how we define multiline strings might be a tricky topic for beginners. No sweat! In this article, we'll look at some simple code examples that demonstrate how to define multiline strings. I'll also link over to GitHub where you can see this code committed and pushed up to a public repository. Finally, the last example contains a special bonus that I think you'll like (even if it's a slightly more advanced topic). Read until the end! The…

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February 1, 2023

CodeProject / Programming / Tips / Tutorial

Simple Secrets for Access to the dotnet Record Type

In C# 9.0 we received access to a great quality of life type called the record. You can read more about that from Microsoft here. Record types allowed us as dotnet programmers to skip a lot of boiler plate code, thereby saving us time and making code more readable. Wins all around! Before record types, we might have simple data transfer objects (called DTOs) that would look something like the following: public sealed class MyData { public MyData( string value1, int value2) { Value1 = value1; Value2 = value2; } publc string Value1 { get; } publc int Value2 { get; } } And for a simple class with two properties... I think we can all agree that the verbosity here is just over the top. With the record type that we were given access to, we can now write…

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January 29, 2023

CodeProject / Programming / Tips / Tutorial

async void – How to Tame the Asynchronous Nightmare

You're an intermediate dotnet programmer and you mostly know your way around using Tasks. You sprinkle async and await through your code, and everything is working just as expected. You've heard time and time again that you always want the return types of your asynchronous methods to be a Task (or Task<T>) and that async void is essentially the root of all evil. No sweat. One day you go to wire up an event handler using the syntax myObject.SomeEvent += SomeEventHandler, and your event handler needs to await some asynchronous code. You take all of the right steps and change your method signature to get that beautiful async Task added in, replacing void. But suddenly you get a compile error about your event handler not being compatible. You feel trapped. You're scared. And then you do the unspeakable... You change…

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January 27, 2023

Beginner / Programming / Tips / Tutorial

Simple Data Types in C#: A Beginner’s Guide

As a C# developer, understanding the different simple data types in C# and when to use them is crucial for writing efficient and maintainable code. I've been trying to spend more time this year putting together some content aimed at really introductory level programming. There's plenty of resources available online, but I want to do my part to ensure I can help break down some of the barriers for people getting started on their programming journey. In this beginner's guide, we will look at the basics of the most commonly used simple data types in C#, including int, float, double, byte, char, bool, and string. We will also look at how these data types differ from each other and when to use them in your C# programming! Integer Data Types The most commonly used integer data types in C# are…

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January 25, 2023

CodeProject / Programming / Tips / Tutorial

Tasks, BackgroundWorkers, and Threads – Simple Comparisons for Concurrency

(This article is intended to be a spiritual successor to this previous entry, and now includes Tasks!) Even if you're new to C#, you've probably come across at least one of Tasks, Threads, or BackgroundWorkers. With a bit of additional time, it's likely you've seen all three in your journey. They're all ways to run concurrent code in C# and each has its own set of pros and cons. In this article, we will explore how each one operates at a high level. It's worth noting that in most modern .NET applications and libraries you'll see things converging to Tasks. The Approach I've gone ahead and created a test application that you can find here. Because this is in source control, it's possible/likely that it will diverge from what we see in this article, so I just wanted to offer…

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January 22, 2023

CodeProject / Programming / Tutorial

Pythonnet – A Simple Union of .NET Core and Python You’ll Love

Python is a powerful and versatile programming language that has become increasingly popular. For many, it's one of the very first programming languages they pick up when getting started. Some of the highest traffic posts on my blog many years after they were written look at using C# and Python together. Today we're going to explore how you can use Python from inside a C# .NET Core application with much more modern approaches than my original articles. Enter Pythonnet! Pythonnet Package & Getting Started We're going to be looking at Python for .NET in order to accomplish this goal. This library allows you to take advantage of Python installed on the running machine from within your .NET Core applications. You must configure it to point at the corresponding Python DLL that you'd like to use, and after a couple of…

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January 20, 2023

CodeProject / Programming

The Hottest New Open Source OpenAI API for C#

If you have an internet connection then you have probably heard of ChatGPT from OpenAI by now. Odds are you might have even given it a whirl to see what it's all about. Personally, I know that I was quite skeptical at first but I've been blown away at how well it's able to converse about topics I ask it. I've even asked it to generate various scenarios for me and it will conclude by explaining why the different facets it chose were good choices. Incredible stuff. I'll be using this to help chip away at content for my role playing game. When it comes to using OpenAI effectively, I have a great deal to learn. It's all very new to me, especially with respect to how to structure prompts and get the most out of the interactions with such…

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January 17, 2023

Perspective / Tips

FAQ: Starting Your Career in Software Development Pt2

You can find part one of this here! Applying for Software Development Jobs How do I stand out on an application? I think this is largely going to depend on where you're applying. Something to consider is that especially with large tech companies, they're getting thousands and thousands of resumes all the time. It can be really competitive to be able to even land an interview so sometimes if the caliber of other applicants is high, it can make it difficult to stand out. That's okay. We don't have control over others, but we do have control over ourselves! We can try a few different things to stand out and help you get started on your software development journey professionally. The following are things I personally would suggest and may not reflect the exact views of my employers (past, present,…

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June 20, 2021

Perspective / Tips

FAQ: Starting Your Career in Software Development Pt1

Navigating Post Secondary Education for Software Development Do you have any advice regarding university applications? For university, it's been so long since I've had to go through applications that I'm not sure I have really specific advice. I think it's important to know what schools have for prerequisites and really ensure you nail those down. In terms of which school to pick, that's certainly a personal choice. You'll have so many factors to consider including cost, what programs are offered, relocation, proximity to loved ones, etc... As a hiring manager, personally, I am less concerned with WHERE someone went to school versus what they could showcase about what they have learned. I'd also personally suggest checking out schools that offer internships since it's an excellent way to get real experience! This is something that worked really well for me since…

3 Comments

June 9, 2021

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