protected void Export() { string fileName = UIHelper.GetSaveFile("Excel files (*.xls)|*.xls|CSV files (*.csv)|*.csv"); if (string.IsNullOrEmpty(fileName)) { return; } string ext = FileHelper.GetFileExtension(fileName); switch (ext) { case ".xls": ExcelExporter.Generate(fListView, fileName); break; case ".csv": CSVExporter.Generate(fListView, fileName); break; default: return; } AppHost.LoadExtFile(fileName); }