public void ConvertToExcel() { var view = getActiveView(); _radHelper.GridView = view.GetOrphanageGridView().GridView; var data = _radHelper.GetSelectedData(view.GetOrphanageGridView().SelectedRows); var ret = _apiClient.Excel_CreateXlsxAsync(new OrphanageDataModel.RegularData.ExportData() { Data = data }); var downloadDataModel = new DownloadDataModel() { DataType = FileExtentionEnum.xlsx, Name = view.GetTitle() + " (Excel)" }; _downloadViewModel.Add(downloadDataModel, ret); }