DEV GridControl 导出到Excel

            SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.Title = "导出Excel";
            saveFileDialog.Filter = "Excel文件(*.Xls)|*.Xls";
            DialogResult dialogResult = saveFileDialog.ShowDialog(this);
            if (dialogResult == DialogResult.OK)
            {
                DevExpress.XtraPrinting.XlsExportOptions options = new DevExpress.XtraPrinting.XlsExportOptions();
                gdv_UserInfo.ExportToExcelOld(saveFileDialog.FileName);
                DevExpress.XtraEditors.XtraMessageBox.Show("保存成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }