AppVeyor.UI.Converters.ButtonForegroundColorConverter.Convert C# (CSharp) Method

        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values != null)
            {
                var project = values[0] as Project;
                var control = values[1] as Button;
                var param = parameter as string;
                if (control != null && project != null && !string.IsNullOrEmpty(param))
                {
                    switch (param)
                    {
                        case "START_BUILD":
                        {
                            if (project.IsInProgress())
                            {
                                control.IsEnabled = false;
                                control.SetResourceReference(Control.ForegroundProperty, VsBrushes.GrayTextKey);
                            }
                            else
                            {
                                control.IsEnabled = true;
                                control.SetResourceReference(Control.ForegroundProperty, VsBrushes.ButtonTextKey);
                            }
                            break;
                        }
                        case "CANCEL_BUILD":
                        {
                            if (project.IsInProgress())
                            {
                                control.IsEnabled = true;
                                control.SetResourceReference(Control.ForegroundProperty, VsBrushes.ButtonTextKey);
                            }
                            else
                            {
                                control.IsEnabled = false;
                                control.SetResourceReference(Control.ForegroundProperty, VsBrushes.GrayTextKey);
                            }
                            break;
                        }
                    }
                    return null;
                }
            }
            return VsBrushes.ButtonTextKey;
        }