private void btn_ExportExcel_Click(object sender, EventArgs e) { string pathsave = ""; try { System.Windows.Forms.SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Title = "Browse Excel Files"; saveFileDialog.DefaultExt = "Excel"; saveFileDialog.Filter = "Excel files (*.xls)|*.xls"; saveFileDialog.CheckPathExists = true; if (saveFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK) { pathsave = saveFileDialog.FileName; saveFileDialog.RestoreDirectory = true; Controller.ExportCustomsDeclaration exportCustoms = new Controller.ExportCustomsDeclaration(); if (ListhQERPBOMs.Count > 0) { exportCustoms.ExportCompareasionBOM(pathsave, ListhQERPBOMs); } } } catch (Exception ex) { } }