restrict to .NET Fx

Author: ghogen

docs/data-tools/create-a-sql-database-by-using-a-designer.md

@@ -22,9 +22,12 @@ You can use Visual Studio to create and update a local database file in SQL Serv
 
 To complete this walkthrough, you'll need the **.NET desktop development** and **Data storage and processing** workloads installed in Visual Studio. To install them, open **Visual Studio Installer** and choose **Modify** (or **More** > **Modify**) next to the version of Visual Studio you want to modify.
 
+> [!NOTE]
+> The procedures in this article apply only to .NET Framework Windows Forms apps, not to .NET Core Windows Forms apps.
+
 ## Create a project and a local database file
 
-1. Create a new **Windows Forms App** project and name it **SampleDatabaseWalkthrough**.
+1. Create a new **Windows Forms App (.NET Framework)** project and name it **SampleDatabaseWalkthrough**.
 
 2. On the menu bar, select **Project** > **Add New Item**.