How to Comment on Multiple Lines in Visual Studio: A Step-by-Step Guide

Are you tired of commenting out lines one by one in Visual Studio? Well, worry no more! In just a few quick steps, you can comment on multiple lines with ease. Whether you’re a seasoned coder or just starting, this guide will help you speed up your workflow. Let’s dive in!

Step by Step Tutorial on How to Comment on Multiple Lines in Visual Studio

Before we get into the nitty-gritty, let’s understand what we’re about to do. Commenting multiple lines in Visual Studio allows you to temporarily disable chunks of code without deleting them. This is super handy when you’re experimenting or debugging. Ready? Let’s go!

Step 1: Select the lines you want to comment

Click and drag your mouse over the lines of code you wish to comment on.

Selecting the lines you want to comment on is the first step in this process. Make sure you highlight the exact lines, as this will determine what gets commented out.

Step 2: Use the keyboard shortcut

Press Ctrl + K, then Ctrl + C on your keyboard.

After selecting the lines, the keyboard shortcut is the magic wand that comments out your code. The Ctrl + K, Ctrl + C combo is easy to remember – think "K" for "Komment".

Step 3: Uncommenting the lines

To uncomment, press Ctrl + K, then Ctrl + U.

If you change your mind or want to reactivate the code, this step will bring it back to life. The same shortcut, but with a ‘U’ for ‘Uncomment’, makes it easy to remember.

After completing these steps, the lines you selected will be commented out, making them inactive in your code. This means they won’t affect your program until you decide to uncomment them. It’s a simple but powerful feature that can save you a ton of time and effort!

Tips for Commenting on Multiple Lines in Visual Studio

  • Be careful what you comment out. It’s easy to accidentally disable important parts of your code.
  • Use comments to explain why you’re disabling the code, not just how. This will help you or others understand your thought process later on.
  • Remember, commenting out code is a temporary measure. Don’t leave chunks of your code commented out for long periods – it can get confusing.
  • Get into the habit of using the keyboard shortcuts. They’ll save you a lot of time in the long run.
  • If you’re working on a team, make sure everyone agrees on when and how to comment out code. It’ll keep everyone on the same page.

Frequently Asked Questions

Can I comment out multiple lines with a different shortcut?

Yes, you can also use Ctrl + / to toggle comments on and off for selected lines.

Will commenting out code affect my program’s performance?

No, commenting out code doesn’t affect performance because the commented-out code is not executed.

Can I comment out blocks of code that have nested comments?

Yes, but be cautious. Nested comments can make your code harder to read and understand.

How do I know if a line is commented out?

Commented-out lines will often turn a different color, such as green or gray, depending on your theme.

Can I comment out lines in any programming language in Visual Studio?

Mostly, yes. The same shortcuts typically work across different languages in Visual Studio.


  1. Select the lines to comment.
  2. Use the keyboard shortcut Ctrl + K, Ctrl + C.
  3. Uncomment with Ctrl + K, Ctrl + U.


Commenting on multiple lines in Visual Studio can be a breeze once you get the hang of it. By following the simple steps outlined in this article, you’ll be able to quickly comment or uncomment large sections of code, speeding up your debugging and testing processes. Remember, while commenting is a powerful tool, it should be used judiciously. Ensure your comments are helpful, not just for you, but for anyone else who might read your code. And, if you’re collaborating, make sure everyone is on board with a consistent commenting strategy.

If you’ve followed along and practiced, congratulations! You’re now more proficient in managing your code in Visual Studio. Keep experimenting with shortcuts and find what works best for you. And if you ever find yourself stuck or needing a refresher, come back to this guide. Happy coding, and remember, a well-commented code is a well-maintained code.