fix(samples): align TFM to net9.0 and pin SDK

sundaramramaswamy · Copilot · sundaramramaswamy · commit 4b83ff22d399 · 2026-05-05T14:21:11.000+05:30
Samples targeted net10.0 while the core framework and CI
target net9.0.  Align all projects to net9.0 and add
global.json to pin the SDK to 9.0.x (latestFeature).

Co-authored-by: Copilot &lt;223556219+Copilot@users.noreply.github.com&gt;
diff --git a/global.json b/global.json
@@ -0,0 +1,6 @@
+{
+  "sdk": {
+    "version": "9.0.100",
+    "rollForward": "latestFeature"
+  }
+}
diff --git a/samples/ReactorGallery/ReactorGallery.csproj b/samples/ReactorGallery/ReactorGallery.csproj
@@ -1,7 +1,7 @@
 ﻿<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net10.0-windows10.0.22621.0</TargetFramework>
+    <TargetFramework>net9.0-windows10.0.22621.0</TargetFramework>
     <Platforms>x64;ARM64</Platforms>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
diff --git a/samples/apps/chat/App/ChatSample.csproj b/samples/apps/chat/App/ChatSample.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net10.0-windows10.0.22621.0</TargetFramework>
+    <TargetFramework>net9.0-windows10.0.22621.0</TargetFramework>
     <Platforms>x64;ARM64</Platforms>
     <RootNamespace>ChatSample.App</RootNamespace>
     <AssemblyName>ChatSample</AssemblyName>
diff --git a/samples/apps/chat/Chat.Model/Chat.Model.csproj b/samples/apps/chat/Chat.Model/Chat.Model.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>ChatSample.Chat.Model</RootNamespace>
     <AssemblyName>ChatSample.Chat.Model</AssemblyName>
     <ImplicitUsings>enable</ImplicitUsings>
diff --git a/samples/apps/chat/Chat.UI/Chat.UI.csproj b/samples/apps/chat/Chat.UI/Chat.UI.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net10.0-windows10.0.22621.0</TargetFramework>
+    <TargetFramework>net9.0-windows10.0.22621.0</TargetFramework>
     <Platforms>x64;ARM64</Platforms>
     <RootNamespace>ChatSample.Chat.UI</RootNamespace>
     <AssemblyName>ChatSample.Chat.UI</AssemblyName>
diff --git a/samples/apps/demo-script-tool/App/DemoScriptTool.csproj b/samples/apps/demo-script-tool/App/DemoScriptTool.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net10.0-windows10.0.22621.0</TargetFramework>
+    <TargetFramework>net9.0-windows10.0.22621.0</TargetFramework>
     <Platforms>x64;ARM64</Platforms>
     <RootNamespace>DemoScriptTool.App</RootNamespace>
     <AssemblyName>DemoScriptTool</AssemblyName>
