From 0a7699a141353b3bced04a640f07a0db25529efc Mon Sep 17 00:00:00 2001
From: Tom Edwards <109803929+TomEdwardsEnscape@users.noreply.github.com>
Date: Thu, 10 Sep 2026 08:06:19 +0000
Subject: [PATCH] Fixed "TESTAPP" window sometimes appearing when Avalonia
 solution is open in Visual Studio (#22201)

---
 .../Avalonia.DesignerSupport.TestApp.csproj                      | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/Avalonia.DesignerSupport.TestApp/Avalonia.DesignerSupport.TestApp.csproj b/tests/Avalonia.DesignerSupport.TestApp/Avalonia.DesignerSupport.TestApp.csproj
index 2baca8435d..06c743b61c 100644
--- a/tests/Avalonia.DesignerSupport.TestApp/Avalonia.DesignerSupport.TestApp.csproj
+++ b/tests/Avalonia.DesignerSupport.TestApp/Avalonia.DesignerSupport.TestApp.csproj
@@ -3,6 +3,7 @@
     <OutputType>Exe</OutputType>
     <TargetFramework>$(AvsCurrentTargetFramework)</TargetFramework>
     <IsPackable>false</IsPackable>
+    <IsTestingPlatformApplication>false</IsTestingPlatformApplication>
   </PropertyGroup>
   <ItemGroup>
     <Compile Update="**\*.xaml.cs">