How do I convert a C# string to a Span? (Span)

Question

How do I convert a string to a Span?

Span mySpan = \"My sample source string\";

Answer 1

You need to install the System.Memory NuGet package.

There are extension methods for strings called .AsSpan() or .AsReadOnlySpan() to convert a string to the appropriate Span.

Example:

Span mySpan = "My sample source string".AsSpan();
ReadOnlySpan myReadOnlySpan = "My read only string".AsReadOnlySpan();

Source: MSDN Channel 9 "C# 7.2: Understanding Span" (around the 6 minute mark)

Update: this answer was correct at the time, but based on a preview version. See updated answer on this page by gfoidl for current procedure.