多個GridControl匯出到一個Excel的一個或多個sheet頁

    多個DEV控制元件匯出到一個Excel的一個或者多個sheet頁

/// <summary>
        /// DevExpress控制元件通用匯出Excel,支援多個控制元件同時匯出在同一個Sheet表或者分不同工作薄
        /// eg:ExportToXlsx("test",true,"控制元件",gridControl1,gridControl2);
        /// 將gridControl1和gridControl2的資料一同匯出到同一個檔案不同的工作薄
        /// eg:ExportToXlsx("test",false,"",gridControl1,gridControl2);
        /// 將gridControl1和gridControl2的資料一同匯出到同一個檔案同一個的工作薄
        /// <param name="title">檔名</param>
        /// <param name="isPageForEachLink">多個列印控制元件是否分多個工作薄顯示</param>
        /// <param name="sheetName">工作薄名稱</param>
        /// <param name="printables">控制元件集 eg:GridControl,PivotGridControl,TreeList,ChartControl...</param>
        public static void ExportToExcel(string title, bool isPageForEachLink, string sheetName, params DevExpress.XtraPrinting.IPrintable[] printables)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog()
            {
                FileName = title,
                Title = "匯出Excel",
                Filter = "Excel檔案(*.xlsx)|*.xlsx|Excel檔案(*.xls)|*.xls"
            };
            DialogResult dialogResult = saveFileDialog.ShowDialog();
            if (dialogResult == DialogResult.Cancel)
                return;
            string FileName = saveFileDialog.FileName;
            DevExpress.XtraPrintingLinks.CompositeLink link = new DevExpress.XtraPrintingLinks.CompositeLink(new DevExpress.XtraPrinting.PrintingSystem());
            foreach (var item in printables)
            {
                var plink = new DevExpress.XtraPrinting.PrintableComponentLink() { Component = item };
                link.Links.Add(plink);
            }
            if (isPageForEachLink)//15.1 的Xls不支援這個功能，15.2未知
                link.CreatePageForEachLink();
            if (string.IsNullOrEmpty(sheetName)) sheetName = "Sheet";//預設工作薄名稱
            try
            {
                int count = 1;
                //在重複名稱後加（序號）
                while (System.IO.File.Exists(FileName))
                {
                    if (FileName.Contains(")."))
                    {
                        int start = FileName.LastIndexOf("(");
                        int end = FileName.LastIndexOf(").") - FileName.LastIndexOf("(") + 2;
                        FileName = FileName.Replace(FileName.Substring(start, end), string.Format("({0}).", count));
                    }
                    else
                    {
                        FileName = FileName.Replace(".", string.Format("({0}).", count));
                    }
                    count++;
                }
                if (FileName.LastIndexOf(".xlsx") >= FileName.Length - 5)
                {
                    DevExpress.XtraPrinting.XlsxExportOptions options = new DevExpress.XtraPrinting.XlsxExportOptions() { SheetName = sheetName };
                    if (isPageForEachLink)
                        options.ExportMode = DevExpress.XtraPrinting.XlsxExportMode.SingleFilePageByPage;
                    link.ExportToXlsx(FileName, options);
                }
                else
                {
                    DevExpress.XtraPrinting.XlsExportOptions options = new DevExpress.XtraPrinting.XlsExportOptions() { SheetName = sheetName };
                    if (isPageForEachLink) //15.Xls沒有這個屬性，15.2未知
                        options.ExportMode = DevExpress.XtraPrinting.XlsExportMode.SingleFilePageByPage;
                    link.ExportToXls(FileName, options);
                }
                if (DevExpress.XtraEditors.XtraMessageBox.Show("儲存成功，是否開啟檔案？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)
                    System.Diagnostics.Process.Start(FileName);//開啟指定路徑下的檔案
            }
            catch (Exception ex)
            {
                DevExpress.XtraEditors.XtraMessageBox.Show(ex.Message);
            }
        }