Writing a simple C# script and evaluating it within the Visual Studio interactive window

In this section, we will walk you through the basics of C# scripting and show you how to use the Visual Studio interactive window to evaluate a C# script.

Getting started

You will need to have Visual Studio 2017 Community edition installed on your machine to execute this recipe. You can install a free community edition from https://www.visualstudio.com/thank-you-downloading-visual-studio/?sku=Community&rel=15

How to do it...

1. Open Visual Studio and start the C# Interactive window by clicking on View |Other Windows |C# Interactive:

2. Type Console.WriteLine("Hello, World!") in the interactive window and hit the Enter key to evaluate the C# expression.
3. Verify that Hello, World! is output as a result in the interactive window:

4. Now, type a variable declaration statement of type List<int> with a collection initializer: var myList = new List<int> { 3, 2, 7, 4, 9, 0 }; and press the Enter key.
5. Next, type...