async void pivotGridControl1_CellClick(object sender, PivotCellEventArgs e) { PivotGridControl pivot = sender as PivotGridControl; if (dForm.IsDisposed) { LoadDrillDownForm(); } //Check whether an asynchronous operation is in progress. if (!pivot.IsAsyncInProgress) { // Get the record set associated with the clicked cell. dForm.DataSource = await pivot.CreateDrillDownDataSourceAsync(e.ColumnIndex, e.RowIndex, 25, new List <string> { "ProductName", "Quantity" }); } }