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. TestResults.io 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 TestResults.io 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: Extensions --> Manage Extensions
Select Online extensions
Search for "Designer for TestResults.io"
Select the Download button
The TestResults.io extension will be installed automatically upon the next Visual Studio restart
You can verify the successful installation of the TestResults.io designer by accessing the Extension and Updates (or Manage Extensions) in Visual Studio and checking if you see the extension in the Installed section: