Introducing C#11: Newlines in string interpolation expressions

Introduction

C# 11 brings an improvement on string interpolation. Previously it was impossible, apart from the use of verbatim syntax with @, to write variable text on several lines (only between curly brackets). In this article I will show you that this is possible by example.

String interpolation in action with C# 11

The following code shows the difference between C# 11 and prior versions of C#:

As you can see prior version of C# would have raised the following compilation error:

Error CS8967 Newlines inside a non-verbatim interpolated string are not supported in C# 10.0. Please use language version preview or greater.

Remember! This is only valid for Newlines between curly braces { newslines here only }, the following won’t work:

Helpful right ? 🙂