private void Open_DetailCsvClick(bool isDetail) { openFileDialog1.Filter = "Csv Fils|*.csv"; openFileDialog1.Title = "Open csv Data File"; if (openFileDialog1.ShowDialog() == DialogResult.OK) { try { var filename = openFileDialog1.FileName; if (isDetail == true) { inv.AddDetailcsvData(filename); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } }