Move to slnx and slnf (#32514)

* Switch to the new slnx format

* fix the workspace

* Generate during local dev

Author: mattleibow

.github/copilot-instructions.md

@@ -149,7 +149,7 @@ UI tests use Appium WebDriver with NUnit. See [UI Testing Guide](../docs/UITesti
 Before committing any changes, format the codebase using the following command to ensure consistent code style:
 
 ```bash
-dotnet format Microsoft.Maui.sln --no-restore --exclude Templates/src --exclude-diagnostics CA1822
+dotnet format Microsoft.Maui.slnx --no-restore --exclude Templates/src --exclude-diagnostics CA1822
 ```
 
 This command:
@@ -267,9 +267,9 @@ dotnet build ./Microsoft.Maui.BuildTasks.slnf
 **Issue: "Dependency version conflicts"**
 ```bash
 # Solution: Full clean and restore
-dotnet clean Microsoft.Maui.sln
+dotnet clean Microsoft.Maui.slnx
 rm -rf bin/ obj/
-dotnet restore Microsoft.Maui.sln --force
+dotnet restore Microsoft.Maui.slnx --force
 ```
 
 **Issue: "Android SDK not found"**
@@ -282,7 +282,7 @@ android # Opens Android SDK Manager
 **Issue: "PublicAPI analyzer failures"**
 ```bash
 # Solution: Use format analyzers first
-dotnet format analyzers Microsoft.Maui.sln
+dotnet format analyzers Microsoft.Maui.slnx
 # If still failing, check build output for required API entries
 ```
 

.github/workflows/dotnet-autoformat-pr.yml

@@ -14,6 +14,6 @@ jobs:
     - name: 'Autoformat'
       uses: rolfbjarne/[email protected]
       with:
-        script: 'dotnet format Microsoft.Maui.sln --no-restore --exclude Templates/src BlazorWebView/src/SharedSource/BlazorWebViewDeveloperTools.cs BlazorWebView/src/SharedSource/BlazorWebViewServiceCollectionExtensions.cs Graphics/src/Graphics.Win2D/W2DCanvas.cs Graphics/src/Graphics.Win2D/W2DExtensions.cs'
+        script: 'dotnet format Microsoft.Maui.slnx --no-restore --exclude Templates/src BlazorWebView/src/SharedSource/BlazorWebViewDeveloperTools.cs BlazorWebView/src/SharedSource/BlazorWebViewServiceCollectionExtensions.cs Graphics/src/Graphics.Win2D/W2DCanvas.cs Graphics/src/Graphics.Win2D/W2DExtensions.cs'
         onlyFilesModifiedInPullRequest: true
         git_commit_message: 'Auto-format source code'

.github/workflows/dotnet-format-daily.yml

@@ -54,8 +54,8 @@ jobs:
 
       - name: Run dotnet format
         run: |
-          dotnet restore Microsoft.Maui.sln 
-          dotnet format Microsoft.Maui.sln --exclude Templates/src --exclude-diagnostics CA1822
+          dotnet restore Microsoft.Maui.slnx 
+          dotnet format Microsoft.Maui.slnx --exclude Templates/src --exclude-diagnostics CA1822
     
       - name: Create Pull Request
         uses: dotnet/actions-create-pull-request@v4

.vscode/settings.json

@@ -1,3 +1,3 @@
 {
-    "dotnet.defaultSolution": "Microsoft.Maui-vscode.sln"
+    "dotnet.defaultSolution": "Microsoft.Maui-vscode.slnx"
 }

AGENTS.md

@@ -75,7 +75,7 @@ dotnet cake --target=VS --android --ios
 Before committing any changes:
 
 ```bash
-dotnet format Microsoft.Maui.sln --no-restore --exclude Templates/src --exclude-diagnostics CA1822
+dotnet format Microsoft.Maui.slnx --no-restore --exclude Templates/src --exclude-diagnostics CA1822
 ```
 
 ### PublicAPI Management
@@ -486,15 +486,15 @@ dotnet build ./Microsoft.Maui.BuildTasks.slnf
 **Issue: "Dependency version conflicts"**
 ```bash
 # Solution: Full clean and restore
-dotnet clean Microsoft.Maui.sln
+dotnet clean Microsoft.Maui.slnx
 rm -rf bin/ obj/
-dotnet restore Microsoft.Maui.sln --force
+dotnet restore Microsoft.Maui.slnx --force
 ```
 
 **Issue: "PublicAPI analyzer failures"**
 ```bash
 # Solution: Use format analyzers first
-dotnet format analyzers Microsoft.Maui.sln
+dotnet format analyzers Microsoft.Maui.slnx
 # If still failing, check build output for required API entries
 ```
 

Directory.Build.props

@@ -122,8 +122,6 @@
     <IncludeAndroidTargetFrameworks>true</IncludeAndroidTargetFrameworks>
     <IncludeMacCatalystTargetFrameworks>true</IncludeMacCatalystTargetFrameworks>
     <IncludeIosTargetFrameworks>true</IncludeIosTargetFrameworks>
-    <IncludeCompatibilityProjects>false</IncludeCompatibilityProjects>
-    <IncludeCompatibilityProjects Condition="'$(SolutionFileName)' == 'Microsoft.Maui.sln'">true</IncludeCompatibilityProjects>
   </PropertyGroup>
 
   <!-- this is CI, so everything should be there -->
@@ -139,7 +137,6 @@
 
   <PropertyGroup>
     <DefineConstants Condition="'$(_MauiTargetPlatformIsWindows)' == 'True'">$(DefineConstants);WINDOWS</DefineConstants>
-    <DefineConstants Condition="'$(IncludeCompatibilityProjects)' == 'True'">$(DefineConstants);COMPATIBILITY_ENABLED</DefineConstants>
     <DefineConstants Condition="'$(IncludePreviousTfms)' == 'True'">$(DefineConstants);ENABLE_PREVIOUS_TFM_BUILDS</DefineConstants>
     <!-- <SymbolPackageFormat>snupkg</SymbolPackageFormat> -->
     <!-- <GenerateRuntimeConfigurationFiles>false</GenerateRuntimeConfigurationFiles> -->