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BillWagner merged 2 commits into from
Dec 10, 2025
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Revise AI section example #50353

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Revise AI section example
anandmeg Dec 4, 2025
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Change prompt to use string interpolation in C# example
anandmeg Dec 10, 2025
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16 changes: 11 additions & 5 deletions docs/csharp/how-to/concatenate-multiple-strings.md
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@@ -1,7 +1,7 @@
---
title: "How to concatenate multiple strings"
description: There are multiple ways to concatenate strings in C#. Learn the options and the reasons behind different choices.
ms.date: 02/18/2025
ms.date: 12/05/2025
helpviewer_keywords:
- "joining strings [C#]"
- "concatenating strings [C#]"
Expand Down Expand Up @@ -72,15 +72,21 @@ This option can cause more allocations than other methods for concatenating coll

## Use AI to concatenate strings

You can use AI tools, such as GitHub Copilot, to generate C# code to concatenate multiple strings. You can customize the prompt to specify strings and the method to use per your requirements.
You can use AI tools, such as GitHub Copilot, to generate C# code to concatenate strings. You can customize the prompt to specify the output format, variables, and the method to use per your requirements.

The following text shows an example prompt for Copilot Chat:
Here's an example Copilot Chat prompt:

```copilot-prompt
Generate C# code to use String.Format to build an output string "Hi x, today's date is y. You are z years old." where x is "John", y is today's date and z is the birthdate January 1, 2000. The final string should show date in the full format mm/dd/yyyy. Show output.
Generate C# code to use string interpolation to build an output string:
"Hello [name], today's date is [current date]. You have [count] new notifications."
Use variables for: name is "John", date is today's date, and notification count is 3.
Format the date as mm/dd/yyyy.
Show the output.
```

GitHub Copilot is powered by AI, so surprises and mistakes are possible. For more information, see [Copilot FAQs](https://aka.ms/copilot-general-use-faqs).
Review Copilot's suggestions before applying them.

For more information, see [Copilot FAQs](https://aka.ms/copilot-general-use-faqs).

## See also

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