Important Tips To Write Clean Code In C#

If the method has a bool return type, it can also be framed as a question. If you follow these suggestions and need to modify your style guide in the future, a few find-and-replace operations can quickly migrate your codebase. We recommend customizing the guidelines provided in our style guide to suit your team’s preferences. These preferences should be prioritized over our suggestions and the Microsoft Framework Design guidelines if they’re in conflict.

I’m passionate about building rich and powerful applications using modern technologies. „Write good comments“ is the oldest piece of advice in the world of programming. In fact, as soon as newbies are introduced to comments, they’re pretty much encouraged to comment as often as they can. Obviously, you can’t just pop into Microsoft’s headquarters and peek at their projects, but you can always browse well-known open-source projects. Have you ever peeked inside a function that was hundreds or even thousands of lines long? If you have, then you know how much of a pain it can be to browse, understand, and edit.

When you can, keep all your whitespace during development so the code is readable. Then, use one of the many smart little programs that go through code and chop out all the whitespace just before you upload it. When you’re writing code, you’ll want to make sure that it’s easy for other people to understand. You need to make sure that you write it in a clear way and that it’s easy to follow.

Sequence of Arguments

If you take nothing else away from this guide other than this, you’ll be ahead of many developers. Unit testing is a process in which you check that the smallest testable parts of an application, called units, work as expected. You can perform unit testing on individual methods, classes, or modules.

This may seem a bit abstract, but if a string must be read only, specifying that it is read only and not write, is your obligation. In that example, we can clearly see that in the bad way we are using different synonyms for the same word. This may cause confusion in the future, both for the current developer and for the future developer who will have to understand the code.

• Meanwhile, specific naming conventions, policy on use of namespaces, and strategies for classes are somewhat abstract areas that can be refined over time.
• You can get further explanation from this TS issue.
• One of the most straightforward solutions is to find a common piece of code and move it into a separate method using the Extract Method refactoring .
• Rather what you could do is, make a Shared Library Project and reference it in each of the required projects.
• It is a habit that needs to be developed by keeping these principles in mind and applying them whenever you write code.

The final result is working software at the end of every day. SOLID is an acronym for five coding principles for writing better code. These principles help develop any kind of application but have been especially useful for object-oriented programming. It’s a very common pattern to make fields and methods public, even if they’re only used internally inside the same project. But you should have in mind that you expose fields and methods used internally and that nobody should know about.

Master the Language’s Idioms

When declaring a variable, we should use a name that makes sense, that is easy to remember and that is easy to pronounce. I am sure that many of you still follow this practice. Whenever you call this method , Visual Studio shows your comment too.

If you’re working with other programmers, clean code reduces the likelihood of misunderstandings between all of you, which also means fewer bugs in the long run. Writing clean code looks easier than it actually is, but the benefits are worth it if you choose to learn. Basic concept of testingTesting is more important than shipping. If you have no tests or an inadequate amount, then every time you ship code you won’t be sure that you didn’t break anything. Deciding on what constitutes an adequate amount is up to your team, but having 100% coverage is how you achieve very high confidence and developer peace of mind. This means that in addition to having a great testing framework, you also need to use a good coverage tool.

If you aren’t using something like Git or Mercurial, you need to start using source control right away. Use multiple catch block instead of if conditions.If you need to take action according to type of the exception, you better use multiple catch block for exception handling. Don’t ignore caught errorsDoing nothing with a caught error doesn’t give you the ability to ever fix or react to said error. Throwing the error isn’t much better as often times it can get lost in a sea of things printed to the console. If you wrap any bit of code in a try/catch it means you think an error may occur there and therefore you should have a plan, or create a code path, for when it occurs.

Tip 8: Don’t allow your Methods and Classes get fat

Liskov Substitution Principle This is a scary term for a very simple concept. Single Responsibility Principle As stated in Clean Code, „There should never be more than one reason for a class to change“. It’s tempting to jam-pack a class with a lot of functionality, like when you can only take one suitcase on your flight. The issue with this is that your class won’t be conceptually cohesive and it will give it many reasons to change.

The following table shows the naming convention you should use while writing C# code. It’s pretty much a standardized way of writing code. Version control systems are important when working on code because they allow you to track the changes made to your code and merge changes from other developers. They help you maintain a code history and make it easier to track down and fix bugs.

Because it will release the holding thread to the thread pool and CPU/cores available will not involve to process those tasks. Therefore, we should avoid using Async/Await for computional bound tasks. Getting the abstraction right is critical, that’s why you should follow the SOLID principles laid out in the Classes section.

Handling Exceptions

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought how to write cleaner code in C# the book or how much they paid . Stream or download to watch on the plane, the subway, or wherever you learn best. I’ve been professionally architecting and implementing software for nearly 7 years, primarily based on the .NET platform.

By using this, you would be able to store the stack trace as well, which is kind of vital for diagnostics purposes. Trust me, there were times when I looked at my own code and couldn’t figure the heads and tails of it. I bet that this is something you would have faced as well.

In fact, all it serves to do is clutter our code by adding more distractions. Here are some basic steps C# developers can take to ensure their code is clean and following best coding practices. It helps to follow coding standard throughout the project.

It should follow single responsibility principle . At the same time, use one variable declaration per line; it’s less compact, but also less error prone and enhances readability. If your class is called Player, you don’t need to create member variables called PlayerScore or PlayerTarget.

Clean Code in C#

There are several coding practices in the software industry. None of them are good or bad but the main thing is that whatever approach we follow, we should make sure that everyone should follow the same standard. I know these little tips are pretty simple (although I’m sure not all of you will follow them?). The number of ways to write cleaner code in C# is more infinite than the universe. So, I’m going to make a list of Cleaner C# Code articles, in which, we will touch on more advanced tips and some other tricks to improve the quality of our code.

Several conventions exist for naming events and event handles. In our style guide, we name the event with https://globalcloudteam.com/ a verb phrase, similar to a method. Choose a name that communicates the state change accurately.

When Should I Refactor Code and How to Get Buy-in for Refactoring?

I acknowledge my data will be used in accordance with Progress‘ Privacy Policy and understand I may withdraw my consent at any time. We talked about how, in programming, there are several ways to do the same thing, but one thing that can always improve your code is syntax optimization. One of the features added from C# 6 onward is a way to initialize properties directly like fields. We usually create constructors to initial properties like below. Using a naming convention is a great way to get started — it keeps things clear and lets you know exactly what you’re working with.

Use type alias instead of interface for declaring Props/State

Full Stack developer with 7+ years of diverse experience on a variety of projects from performance monitoring and analytical tools to freight marketplace. I work on the front end with a strong background from the back end. In above snippet, we are declaring some extra variables that we don’t really need to declare.

You do not want to copy-paste a function through multiple classes. Rather what you could do is, make a Shared Library Project and reference it in each of the required projects. And, if there is any modification needed, you would just have to change the code in the shared library, not everywhere.

For C#, popular IDE’s and developer tools include Visual Studio, Visual Studio Code, and several of the popular Jet Brains coding tools, such as Rider. Anyhow, this offers a lot of code Refactoring techniques when you start working on it. To know more about using ReSharper, please check the followinglink. It provides quick-fixes for most errors and other detected code issues.

If the object is null then the value null will be returned. The below code is rewritten with the reverse order of if and else statements. This post will help you speed up your C# code and provide many tricks that every professional developer must know. All you need is to add a dollar ($) sign in front of string, after that you can insert dynamic values using braces “” directly with in string. If logic evaluates as false, then if-block will not be executed and controller will start execution automatically at very next line from end of if-block.