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Author: ggailey777

includes/functions-bindings-csharp-intro.md

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+---
+author: ggailey777
+ms.service: azure-functions
+ms.topic: include
+ms.date: 11/16/2021
+ms.author: glenga
+---
+
+The C# function can be created using one of the following C# modes:
+
+* [In-process class library](../articles/azure-functions/functions-dotnet-class-library.md): compiled C# function that runs in the same process as the Functions runtime. 
+* [Isolated process class library](../articles/azure-functions/dotnet-isolated-process-guide.md): compiled C# function that runs in a process isolated from the runtime. Isolated process is required to support C# functions running on .NET 5.0.     
+* [C# script](../articles/azure-functions/functions-reference-csharp.md): used primarily when creating C# functions in the Azure portal.