Updating Maui templates to build unpackaged Windows apps by default

src/Templates/src/templates/maui-blazor-solution/MauiApp.1/MauiApp.1.csproj

@@ -31,6 +31,9 @@
     <ApplicationDisplayVersion>1.0</ApplicationDisplayVersion>
     <ApplicationVersion>1</ApplicationVersion>
 
+    <!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->
+    <WindowsPackageType>None</WindowsPackageType>
+
     <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">15.0</SupportedOSPlatformVersion>
     <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">15.0</SupportedOSPlatformVersion>
     <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">24.0</SupportedOSPlatformVersion>

src/Templates/src/templates/maui-blazor-solution/MauiApp.1/Properties/launchSettings.json

@@ -1,7 +1,7 @@
 {
   "profiles": {
     "Windows Machine": {
-      "commandName": "MsixPackage",
+      "commandName": "Project",
       "nativeDebugging": false
     }
   }

src/Templates/src/templates/maui-blazor/MauiApp.1.csproj

@@ -31,6 +31,9 @@
         <ApplicationDisplayVersion>1.0</ApplicationDisplayVersion>
         <ApplicationVersion>1</ApplicationVersion>
 
+        <!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->
+        <WindowsPackageType>None</WindowsPackageType>
+
         <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">15.0</SupportedOSPlatformVersion>
         <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">15.0</SupportedOSPlatformVersion>
         <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">24.0</SupportedOSPlatformVersion>

src/Templates/src/templates/maui-blazor/Properties/launchSettings.json

@@ -1,7 +1,7 @@
 {
   "profiles": {
     "Windows Machine": {
-      "commandName": "MsixPackage",
+      "commandName": "Project",
       "nativeDebugging": false
     }
   }

src/Templates/src/templates/maui-mobile/MauiApp.1.csproj

@@ -30,6 +30,9 @@
 		<ApplicationDisplayVersion>1.0</ApplicationDisplayVersion>
 		<ApplicationVersion>1</ApplicationVersion>
 
+		<!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->
+		<WindowsPackageType>None</WindowsPackageType>
+
 		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">15.0</SupportedOSPlatformVersion>
 		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">15.0</SupportedOSPlatformVersion>
 		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">21.0</SupportedOSPlatformVersion>

src/Templates/src/templates/maui-mobile/Properties/launchSettings.json

@@ -1,7 +1,7 @@
 {
   "profiles": {
     "Windows Machine": {
-      "commandName": "MsixPackage",
+      "commandName": "Project",
       "nativeDebugging": false
     }
   }

src/Templates/src/templates/maui-multiproject/MauiApp.1.WinUI/MauiApp.1.WinUI.csproj

@@ -16,6 +16,8 @@
 		<UseMaui>true</UseMaui>
 		<!-- We do not want XAML files to be processed as .NET MAUI XAML, but rather WinUI XAML. -->
 		<EnableDefaultMauiItems>false</EnableDefaultMauiItems>
+		<!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->
+		<WindowsPackageType>None</WindowsPackageType>
 	</PropertyGroup>
 
 	<ItemGroup>

src/Templates/src/templates/maui-multiproject/MauiApp.1.WinUI/Properties/launchSettings.json

@@ -1,7 +1,7 @@
 {
   "profiles": {
     "Windows Machine": {
-      "commandName": "MsixPackage",
+      "commandName": "Project",
       "nativeDebugging": true
     }
   }

src/TestUtils/src/Microsoft.Maui.IntegrationTests/Utilities/FileUtilities.cs

@@ -4,6 +4,22 @@ namespace Microsoft.Maui.IntegrationTests
 {
 	public static class FileUtilities
 	{
+		public static void ShouldNotContainInFile(string file, string value)
+		{
+			string content = File.ReadAllText(file);
+
+			if (content.Contains(value, StringComparison.OrdinalIgnoreCase))
+				throw new InvalidOperationException($"Found '{value}' in '{file}'.");
+		}
+
+		public static void ShouldContainInFile(string file, string value)
+		{
+			string content = File.ReadAllText(file);
+
+			if (!content.Contains(value, StringComparison.OrdinalIgnoreCase))
+				throw new InvalidOperationException($"Unable to find '{value}' in '{file}'.");
+		}
+
 		public static void ReplaceInFile(string file, string oldValue, string newValue)
 		{
 			string content = File.ReadAllText(file);

src/TestUtils/src/Microsoft.Maui.IntegrationTests/WindowsTemplateTest.cs

@@ -12,7 +12,7 @@ public class WindowsTemplateTest : BaseTemplateTests
 	[TestCase("maui-blazor", DotNetPrevious, "Release")]
 	[TestCase("maui-blazor", DotNetCurrent, "Debug")]
 	[TestCase("maui-blazor", DotNetCurrent, "Release")]
-	public void BuildUnpackaged(string id, string framework, string config)
+	public void BuildPackaged(string id, string framework, string config)
 	{
 		var projectDir = TestDirectory;
 		var projectFile = Path.Combine(projectDir, $"{Path.GetFileName(projectDir)}.csproj");
@@ -24,12 +24,19 @@ public void BuildUnpackaged(string id, string framework, string config)
 		if (framework != DotNetPrevious)
 			EnableTizen(projectFile);
 
-		FileUtilities.ReplaceInFile(projectFile,
-			"<UseMaui>true</UseMaui>",
-			"""
-			<UseMaui>true</UseMaui>
-			<WindowsPackageType>None</WindowsPackageType>
-			""");
+		if (framework == DotNetPrevious)
+		{
+			// .NET 8 was Packaged by default, so we don't have to do anything
+			FileUtilities.ShouldNotContainInFile(projectFile,
+				"<WindowsPackageType>");
+		}
+		else
+		{
+			// .NET 9 and later was Unpackaged, so we need to remove the line
+			FileUtilities.ReplaceInFile(projectFile,
+				"<WindowsPackageType>None</WindowsPackageType>",
+				"");
+		}
 
 		Assert.IsTrue(DotnetInternal.Build(projectFile, config, properties: BuildProps, msbuildWarningsAsErrors: true),
 			$"Project {Path.GetFileName(projectFile)} failed to build. Check test output/attachments for errors.");
@@ -56,9 +63,8 @@ public void BuildWindowsAppSDKSelfContained(string id, bool wasdkself, bool nets
 			$"Unable to create template {id}. Check test output for errors.");
 
 		FileUtilities.ReplaceInFile(projectFile,
-			"<UseMaui>true</UseMaui>",
+			"<WindowsPackageType>None</WindowsPackageType>",
 			$"""
-			<UseMaui>true</UseMaui>
 			<WindowsAppSDKSelfContained>{wasdkself}</WindowsAppSDKSelfContained>
 			<SelfContained>{netself}</SelfContained>
 			<WindowsPackageType>{packageType}</WindowsPackageType>
@@ -88,9 +94,8 @@ public void BuildWindowsRidGraph(string id, bool useridgraph, string packageType
 			$"Unable to create template {id}. Check test output for errors.");
 
 		FileUtilities.ReplaceInFile(projectFile,
-			"<UseMaui>true</UseMaui>",
+			"<WindowsPackageType>None</WindowsPackageType>",
 			$"""
-			<UseMaui>true</UseMaui>
 			<UseRidGraph>{useridgraph}</UseRidGraph>
 			<WindowsPackageType>{packageType}</WindowsPackageType>
 			""");
@@ -104,7 +109,9 @@ public void BuildWindowsRidGraph(string id, bool useridgraph, string packageType
 
 	[Test]
 	[TestCase("maui", DotNetCurrent, "Release")]
+	[TestCase("maui", DotNetPrevious, "Release")]
 	[TestCase("maui-blazor", DotNetCurrent, "Release")]
+	[TestCase("maui-blazor", DotNetPrevious, "Release")]
 	public void PublishUnpackaged(string id, string framework, string config)
 	{
 		if (!TestEnvironment.IsWindows)
@@ -116,7 +123,19 @@ public void PublishUnpackaged(string id, string framework, string config)
 		Assert.IsTrue(DotnetInternal.New(id, projectDir, framework),
 			$"Unable to create template {id}. Check test output for errors.");
 
-		BuildProps.Add("WindowsPackageType=None");
+		if (framework == DotNetPrevious)
+		{
+			// .NET 8 was Packaged by default, so we need to say no
+			FileUtilities.ShouldNotContainInFile(projectFile,
+				"<WindowsPackageType>");
+			BuildProps.Add("WindowsPackageType=None");
+		}
+		else
+		{
+			// .NET 9 is Unpackaged by default, so we don't have to do anything
+			FileUtilities.ShouldContainInFile(projectFile,
+				"<WindowsPackageType>None</WindowsPackageType>");
+		}
 
 		Assert.IsTrue(DotnetInternal.Publish(projectFile, config, framework: $"{framework}-windows10.0.19041.0", properties: BuildProps),
 			$"Project {Path.GetFileName(projectFile)} failed to build. Check test output/attachments for errors.");
@@ -139,7 +158,9 @@ void AssetExists(string filename)
 
 	[Test]
 	[TestCase("maui", DotNetCurrent, "Release")]
+	[TestCase("maui", DotNetPrevious, "Release")]
 	[TestCase("maui-blazor", DotNetCurrent, "Release")]
+	[TestCase("maui-blazor", DotNetPrevious, "Release")]
 	public void PublishPackaged(string id, string framework, string config)
 	{
 		if (!TestEnvironment.IsWindows)
@@ -152,6 +173,20 @@ public void PublishPackaged(string id, string framework, string config)
 		Assert.IsTrue(DotnetInternal.New(id, projectDir, framework),
 			$"Unable to create template {id}. Check test output for errors.");
 
+		if (framework == DotNetPrevious)
+		{
+			// .NET 8 was Packaged by default, so we don't have to do anything
+			FileUtilities.ShouldNotContainInFile(projectFile,
+				"<WindowsPackageType>");
+		}
+		else
+		{
+			// .NET 9 and later was Unpackaged, so we need to remove the line
+			FileUtilities.ReplaceInFile(projectFile,
+				"<WindowsPackageType>None</WindowsPackageType>",
+				"");
+		}
+
 		Assert.IsTrue(DotnetInternal.Publish(projectFile, config, framework: $"{framework}-windows10.0.19041.0", properties: BuildProps),
 			$"Project {Path.GetFileName(projectFile)} failed to build. Check test output/attachments for errors.");