Breaking-up interpolated strings into pieces

[kuzminrobin]

I failed to find on the page (and this one too) the answer to the following question.

If the interpolated string is very long and I want to break it up into multiple pieces (each having an interpolation expression), then does each part have to be prefixed with $?
Example: Original interpolated string $"{a}{b}".
Which break-up is right,
this $"{a}" + "{b}" or
this $"{a}" + $"{b}"?

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• ID: d0665571-35b7-0841-5719-b69456b35cfb
• Version Independent ID: 0410420b-3b12-6d96-40cf-56f22ac19a1d
• Content: $ - string interpolation - C# reference
• Content Source: docs/csharp/language-reference/tokens/interpolated.md
• Product: dotnet-csharp
• Technology: csharp-language-reference
• GitHub Login: @pkulikov
• Microsoft Alias: wiwagn

[BillWagner]

That's a great question @kuzminrobin

Currently, you'd need to add the $ on both expressions: $"{a}" + $"{b}".

However, starting with C# 11, you could use raw string literals to create an interpolated string expression that spans multiple lines. (That's a bit different than what you'd asked, but I think it would fit the scenario in practice).

I've added this to our backlog, and I've added the "up for grabs" label, if anyone wants to add a sample or two as I've described.