/// <summary>        /// DevExpress通用导出Excel,支持多个控件同时导出在同一个Sheet表        /// eg:ExportToXlsx("",gridControl1,gridControl2);        /// 将gridControl1和gridControl2的数据一同导出到同一张工作表        /// </summary>        /// <param name="title">文件名</param>        /// <param name="panels">控件集</param>        public void ExportToExcel(string title, params IPrintable[] panels)        {            SaveFileDialog saveFileDialog = new SaveFileDialog();            saveFileDialog.FileName = title;            saveFileDialog.Title = "导出Excel";            saveFileDialog.Filter = "Excel文件(*.xlsx)|*.xlsx|Excel文件(*.xls)|*.xls";            DialogResult dialogResult = saveFileDialog.ShowDialog();            if (dialogResult == DialogResult.Cancel)                return;            string FileName = saveFileDialog.FileName;            PrintingSystem ps = new PrintingSystem();            CompositeLink link = new CompositeLink(ps);            ps.Links.Add(link);            foreach (IPrintable panel in panels)            {                link.Links.Add(CreatePrintableLink(panel));            }            link.Landscape = true;//横向                       //判断是否有标题，有则设置                     //link.CreateDocument(); //建立文档            try            {                int count = 1;                //在重复名称后加（序号）                while (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)                {                    XlsxExportOptions options = new XlsxExportOptions();                    link.ExportToXlsx(FileName, options);                }                else                {                    XlsExportOptions options = new XlsExportOptions();                    link.ExportToXls(FileName, options);                }                if (DevExpress.XtraEditors.XtraMessageBox.Show("保存成功，是否打开文件？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)                    System.Diagnostics.Process.Start(FileName);//打开指定路径下的文件            }            catch (Exception ex)            {                DevExpress.XtraEditors.XtraMessageBox.Show(ex.Message);            }        }        /// <summary>        /// 创建打印Componet        /// </summary>        /// <param name="printable"></param>        /// <returns></returns>        PrintableComponentLink CreatePrintableLink(IPrintable printable)        {            ChartControl chart = printable as ChartControl;            if (chart != null)                chart.OptionsPrint.SizeMode = DevExpress.XtraCharts.Printing.PrintSizeMode.Stretch;            PrintableComponentLink printableLink = new PrintableComponentLink() { Component = printable };            return printableLink;        }