Proj0038: Specify NoWarn rule IDs fully

Author: Corniel

README.md

@@ -89,6 +89,7 @@ reported a the [GibHub repository](https://github.com/dotnet-project-file-analyz
 * [**Proj0035** Remove deprecated RestoreProjectStyle property](rules/Proj0035.md)
 * [**Proj0036** Remove None when redundant](rules/Proj0036.md)
 * [**Proj0037** Exclude runtime when all assets are private](rules/Proj0037.md)
+* [**Proj0038** Specify NoWarn rule IDs fully](rules/Proj0038.md)
 
 ### Packaging
 * [**Proj0200** Define IsPackable explicitly](rules/Proj0200.md)

rules/Proj0038.md

@@ -0,0 +1,35 @@
+---
+parent: General
+ancestor: MSBuild
+---
+
+# Proj0038: Specify NoWarn rule IDs fully
+MS Build allows to disable a static code analysis rule by adding it to the
+`<NoWarn>` property. It excepts rule IDs that are only specified by their
+numeric part. The latter is considered a bad practice: it can lead to excluding
+multiple rules at once that have the same integer part, and make it less
+trivial to understand which rule has been disabled.
+
+## Non-compliant
+``` xml
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <NoWarn>1825</NoWarn>
+  </PropertyGroup>
+
+</Project>
+```
+
+## Compliant
+``` xml
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <NoWarn>CA1825</NoWarn>
+  </PropertyGroup>
+
+</Project>
+```