2-skills-dotnet.md

Step 2: Seeing AI code suggestions in a C# file!

Nice work! 🎉 You created a Codespace using a devcontainer file that installed Copilot!

GitHub Copilot provides suggestions for numerous languages and a wide variety of frameworks, but works especially well for Python, JavaScript, TypeScript, Ruby, Go, C# and C++. The following samples are in C#, but other languages will work similarly.

Let's try this out utilizing C# for Copilot.

Note: If you closed the Codespace from above, please open it back up or create a new Codespace.

⌨️ Activity: Add a C# file and start writing code

Note: Make sure to open the Solution Explorer to see an organized view to easily add new projects and run them..

1. Create a new .NET project by using the .NET: New Project... command and selecting Console App.

2. Select the code folder and name the project Skills.

3. Open Program.cs

4. Verify your new file looks like:

5. In the Program.cs file, remove any code and then type the following function header.

   void CalculateNumbers(int var1, int var2)
   {

   GitHub Copilot will automatically suggest an entire function body in grayed text. Below is an example of what you'll most likely see, but the exact suggestion may vary.

6. Press Tab to accept the suggestion.

⌨️ Activity: Push code to your repository from the codespace

Let's use GitHub Copilot to summarize our changes and then commit the code.

1. Open the Source Control tab
2. Tap on the ✨ button in the Message entry for Copilot to generate your message.

3. Click the Commit button.

Head to Part 3 of the Exercise