EpgTimer.RecSettingView.button_recFolderChg_Click C# (CSharp) Method

        private void button_recFolderChg_Click(object sender, RoutedEventArgs e)
        {
            if (listView_recFolder.SelectedItem != null)
            {
                RecFolderWindow setting = new RecFolderWindow();
                PresentationSource topWindow = PresentationSource.FromVisual(this);
                if (topWindow != null)
                {
                    setting.Owner = (Window)topWindow.RootVisual;
                }
                RecFileSetInfo selectInfo = listView_recFolder.SelectedItem as RecFileSetInfo;
                setting.SetDefSetting(selectInfo);
                if (setting.ShowDialog() == true)
                {
                    setting.GetSetting(ref selectInfo);
                }
                listView_recFolder.Items.Refresh();
            }
        }