Initializing the C# interactive session from the existing C# project

In this section, we will walk you through the steps to initialize a C# interactive scripting session from an existing C# project and then use the types from the project in the Visual Studio interactive window.

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. Declare a local variable int x = 0; in the interactive window and press the Enter key.
3. Execute Console.WriteLine(x) and verify the output 0 to confirm that the variable x is declared in the current session.
4. Create a new C# class library project, say ClassLibrary.
5. Add the following method M to type Class1 in the created project:

public void M()...