如何通过c#程序获取VS 2019的安装位置？

using Microsoft.Win32;

public static string GetVS2019InstallationPath()
{
    string installationPath = string.Empty;
    string registryKeyPath = @"SOFTWARE\Microsoft\VisualStudio\SxS\VS7";

    using (RegistryKey key = Registry.LocalMachine.OpenSubKey(registryKeyPath))
    {
        if (key != null)
        {
            string[] versions = key.GetSubKeyNames();
            foreach (string version in versions)
            {
                if (version.StartsWith("16."))
                {
                    using (RegistryKey versionKey = key.OpenSubKey(version))
                    {
                        installationPath = versionKey.GetValue("InstallDir")?.ToString();
                        break;
                    }
                }
            }
        }
    }

    return installationPath;
}