Document #:include support in file-based apps
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| title: File-based apps | ||||||
| description: Learn how to create, build, and run C# applications from a single file without a project file. | ||||||
| ms.date: 04/22/2026 | ||||||
| ai-usage: ai-assisted | ||||||
| --- | ||||||
| # File-based apps | ||||||
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@@ -21,7 +21,7 @@ In this article, learn how to create, configure, and work with file-based apps e | |||||
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| ## Supported directives | ||||||
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| File-based apps use directives prefixed with `#:` to configure the build and run the application. Supported directives include: `#:package`, `#:project`, `#:include`, `#:property`, and `#:sdk`. Place these directives at the top of the C# file. | ||||||
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| ### `#:package` | ||||||
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@@ -44,6 +44,17 @@ References another project file or directory that contains a project file. | |||||
| #:project ../SharedLibrary/SharedLibrary.csproj | ||||||
| ``` | ||||||
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| ### `#:include` | ||||||
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| Includes another C# source file in your file-based app. | ||||||
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There was a problem hiding this comment. Applied in 45e2f60. The sentence now reads: “Includes another C# source file in the file-based app.” |
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| ```csharp | ||||||
| #:include helpers.cs | ||||||
| #:include models/customer.cs | ||||||
| ``` | ||||||
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| The `#:include` directive is available in .NET 11 Preview 3 and .NET SDK 10.0.3xx and later. | ||||||
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| ### `#:property` | ||||||
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| Sets an MSBuild property value. | ||||||
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@@ -215,6 +226,7 @@ Different SDKs include other file types: | |||||
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| - `Microsoft.NET.Sdk.Web` includes `*.json` configuration files. | ||||||
| - Non-default SDKs include ResX resource files. | ||||||
| - Files referenced by `#:include` are included for compilation. | ||||||
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| ## Native AOT publishing | ||||||
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Insert alphabetically.
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Addressed in 45e2f60. The supported directives list and directive sections are now ordered alphabetically.