private void cbChartType_SelectedIndexChanged(object sender, RoutedEventArgs e) { if (cbChartType.SelectedIndex < 0) { return; } chartControl.Diagram = ChartFactory.GenerateDiagram((Type)((ComboBoxEditItem)cbChartType.SelectedItem).Tag, ceShowPointsLabels.IsChecked); pivotGridControl.ChartProvideEmptyCells = IsProvideEmptyCells(); }