Dotnet

In todays episode, I’ll show you how to use three advanced statements in C#. I’ll go over the so-called null-conditional operator, the null-coalescing operator and the ternary operator. Null-Conditional Operator You can use the null-conditional operator to prevent _NullReferenceException_s. The basic principle of the operator is to return a value if it is not null, and return null if it is. The following code shows you how to use the operator, which is initiated by a question mark, followed by a dot. ...

In this series, I go over the very basics of the C# programming language. In todays guide, I will focus on writing custom extension methods for existing, prebuilt classes. You can use extension methods to add custom functionality to classes that are built by others. In my very case, I’d like to extend the functionality of the String class to set its first letter to upper case. I already implemented this functionality in my sideproject CryptoFolio, be sure to check out my article on the topic! ...

Altough the topic “Collections” matches programming in general, I’ve decided to add it to my series on mastering the basics of C#. For this reason, you will find some content here that is generally applicable, but I will also discuss different language-specific elements. Collections support several different use cases, e. g. searching through a set for objects with certain properties, or iterating through multiple elements by predefined sorting specifications. In the first part of this article, I will cover the two basic types of collections in C#, lists and dictionaries. Then, I will go over the groups of collections you might know from Java: lists, sets and maps. I’d like to describe and compare their characteristics and then implement their functionality in C#. ...

Hello Internet! Today, we will try to develop and run .NET Core Apps on a Macbook running Arch Linux! Because what could go wrong! (Honestly, this went way better than I thought.) Installation Before we can start writing .NET Core applications on Linux, we need to install some packages. The Arch Wiki states that to run .NET Core applications, the dotnet-runtime package needs to be installed. Additionally, we will need dotnet-sdk-2.0 from the AUR to be able to develop custom applications. ...

Today I would like to introduce my current side project. I’m currently developing CryptoFolio, an app that allows you to keep track of your investments in cryptocurrencies. Functionality & MVP The first release of the application will allow you to view the current rates of the top 100 cryptocurrencies with the highest market capitalization. You can then add investments, where input, output and the date of the transaction is recorded. ...