EpgTimer.RecSettingView.button_recFolderAdd_1seg_Click C# (CSharp) Method

        private void button_recFolderAdd_1seg_Click(object sender, RoutedEventArgs e)
        {
            RecFolderWindow setting = new RecFolderWindow();
            PresentationSource topWindow = PresentationSource.FromVisual(this);
            if (topWindow != null)
            {
                setting.Owner = (Window)topWindow.RootVisual;
            }
            if (setting.ShowDialog() == true)
            {
                RecFileSetInfo setInfo = new RecFileSetInfo();
                setting.GetSetting(ref setInfo);
                foreach (RecFileSetInfo info in recSetting.PartialRecFolder)
                {
                    if (String.Compare(setInfo.RecFolder, info.RecFolder, true) == 0 &&
                        String.Compare(setInfo.WritePlugIn, info.WritePlugIn, true) == 0 &&
                        String.Compare(setInfo.RecNamePlugIn, info.RecNamePlugIn, true) == 0)
                    {
                        MessageBox.Show("すでに追加されています");
                        return;
                    }
                }
                listView_recFolder_1seg.Items.Add(setInfo);
            }
        }