In order to work with the designer you will need to install the following software on your PC:
  • Visual Studio 2017 or a later edition. The type of your VS installation is irrelevant i.e. also works with the free "Community" edition. Visual Studio can be downloaded from here.
  • .NET desktop development package (can be selected during the installation of Visual Studio):
  • The Designer extension which you can download from the Visual Studio Marketplace or by following these steps:
    • In Visual Studio go to
      • in VS2017: Tools --> Extensions and Updates
      • in VS2019 and later: Extensions --> Manage Extensions
    • Select Online extensions
    • Search for "Designer for"
    • Select the Download button
    • The extension will be installed automatically upon the next Visual Studio restart
  • You can verify the successful installation of the designer by accessing the Extension and Updates (or Manage Extensions) in Visual Studio and checking if you see the extension in the Installed section: