35 lines
2.7 KiB
Markdown
35 lines
2.7 KiB
Markdown
---
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title: Code analysis in ASP.NET Core apps
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author: rick-anderson
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description: Learn about source code analysis in ASP.NET Core
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monikerRange: '>= aspnetcore-3.1'
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ms.author: riande
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ms.date: 10/15/2021
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no-loc: [Home, Privacy, Kestrel, appsettings.json, "ASP.NET Core Identity", cookie, Cookie, Blazor, "Blazor Server", "Blazor WebAssembly", "Identity", "Let's Encrypt", Razor, SignalR]
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uid: diagnostics/code-analysis
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---
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# Code analysis in ASP.NET Core apps
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.NET compiler platform analyzers inspect application code for code quality and style issues. This document lists only diagnostics for ASP.NET Core. For information on .NET diagnostics, see [Overview of .NET source code analysis](/dotnet/fundamentals/code-analysis/overview).
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| Diagnostic ID | Breaking or non-breaking | Description |
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| - | - | - |
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| [ASP0000](xref:diagnostics/asp0000) | Non-breaking | Do not call 'IServiceCollection.BuildServiceProvider' in 'ConfigureServices' |
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| [ASP0001](xref:diagnostics/asp0001) | Non-breaking | Authorization middleware is incorrectly configured |
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| [ASP0004](xref:diagnostics/asp0004) | Non-breaking | Do not use action results with route handlers |
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| [ASP0005](xref:diagnostics/asp0005) | Non-breaking | Do not place attribute on method called by route handler lambda |
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| [ASP0007](xref:diagnostics/asp0007) | Non-breaking | Route parameter and argument optionality is mismatched |
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| [BL0001](xref:diagnostics/bl0001) | Breaking | Component parameter should have public setters |
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| [BL0002](xref:diagnostics/bl0002) | Non-breaking | Component has multiple CaptureUnmatchedValues parameters |
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| [BL0003](xref:diagnostics/bl0003) | Breaking | Component parameter with CaptureUnmatchedValues has the wrong type |
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| [BL0004](xref:diagnostics/bl0004) | Breaking | Component parameter should be public |
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| [BL0005](xref:diagnostics/bl0005) | Non-breaking | Component parameter should not be set outside of its component |
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| [BL0006](xref:diagnostics/bl0006) | Non-breaking | Do not use RenderTree types |
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| [MVC1000](xref:diagnostics/mvc1000) | Non-breaking | Use of IHtmlHelper.Partial should be avoided |
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| [MVC1001](xref:diagnostics/mvc1001) | Non-breaking | Filters cannot be applied to page handler methods |
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| [MVC1002](xref:diagnostics/mvc1002) | Non-breaking | Route attributes cannot be applied to page handler methods |
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| [MVC1003](xref:diagnostics/mvc1003) | Non-breaking | Route attributes cannot be applied to page models |
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| [MVC1004](xref:diagnostics/mvc1004) | Breaking | Rename model bound parameter |
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| [MVC1005](xref:diagnostics/mvc1005) | Non-breaking | Cannot use UseMvc with Endpoint Routing |
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| [MVC1006](xref:diagnostics/mvc1006) | Breaking | Methods containing TagHelpers must be async and return Task |
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