private void ClearSelectedTotal_Click(object sender, EventArgs e)
        {
            Configuration config = controller.GetCurrentConfiguration();

            if (config.index >= 0 && config.index < config.configs.Count)
            {
                try
                {
                    controller.ClearTransferTotal(config.configs[config.index].server);
                }
                catch { }
            }
        }
        private void ClearSelectedTotalMenuItem_OnClick(object sender, RoutedEventArgs e)
        {
            var config = _controller.GetCurrentConfiguration();

            if (config.index >= 0 && config.index < config.configs.Count)
            {
                try
                {
                    _controller.ClearTransferTotal(config.configs[config.index].server);
                }
                catch
                {
                    // ignored
                }
            }
        }