GHWizard.UserInputForm.browseRhinocommon_Click C# (CSharp) Method

        private void browseRhinocommon_Click(object sender, EventArgs e)
        {
            string start_at = File.Exists(rhinocommonPath.Text) ? rhinocommonPath.Text :
            Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles);

              string location;
              if (GetLocation("RhinoCommon library", "RhinoCommon.dll", start_at, out location))
              {
            rhinocommonPath.Text = location;
            rhinocommonPath.ForeColor = SystemColors.ControlDark;
            EnableOrDisableContinue();
              }
        }