public DataTable ToDataTable<T>(IEnumerable<T> collection, Dictionary<string, string> columnMaps = null)

        {

            var props = typeof(T).GetProperties();

            var dt = new DataTable();

            dt.Columns.AddRange(props.Select(p => new DataColumn(p.Name, p.PropertyType)).ToArray());

            if (collection.Count() > 0)

            {

                for (int i = 0; i < collection.Count(); i++)

                {

                    ArrayList tempList = new ArrayList();

                    foreach (PropertyInfo pi in props)

                    {

                        object obj = pi.GetValue(collection.ElementAt(i), null);

                        tempList.Add(obj);

                    }

                    object[] array = tempList.ToArray();

                    dt.LoadDataRow(array, true);

                }

            }

            if (columnMaps != null)

            {

                //修改列名

                foreach (var item in columnMaps)

                {

                    dt.Columns[item.Key].ColumnName = item.Value;

                }

            }

            return dt;

        }

        public bool ConvertDataTableToPDF(DataTable Data, string PDFFile, float FontSize)

        {

            try

            {

                GenepointLog.Info($"開始導出pdf--{PDFFile}");

                //定義頁面的大小

                Rectangle pageSize = PageSize.A4;

                Document document = new Document(pageSize);

                //默認頁面大小

                //Document document = new Document();

                var stream = new FileStream(PDFFile, FileMode.OpenOrCreate);

                PdfWriter writer = PdfWriter.GetInstance(document, stream);

                document.Open();

                //設置字體

                //BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1257, BaseFont.NOT_EMBEDDED);

                BaseFont.AddToResourceSearch("iTextAsian.dll");

                BaseFont.AddToResourceSearch("iTextAsianCmaps.dll");

                BaseFont bf = BaseFont.CreateFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);

                //BaseFont bf = BaseFont.CreateFont("STSong-Light,Italic", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);

                Font font = new Font(bf, FontSize);

                PdfPTable table = new PdfPTable(Data.Columns.Count);

                table.WidthPercentage = 100; // percentage

                table.DefaultCell.Padding = 1;

                table.DefaultCell.BorderWidth = 0.2f;

                table.DefaultCell.HorizontalAlignment = Element.ALIGN_LEFT;

                //將datatable表頭轉換成PDFTable的表頭

                foreach (DataColumn dc in Data.Columns)

                {

                    table.AddCell(new Phrase(dc.ColumnName.ToString(), font));

                }

                //插入數據

                for (int i = 0; i < Data.Rows.Count; i++)

                {

                    for (int j = 0; j < Data.Columns.Count; j++)

                    {

                        table.AddCell(new Phrase(Data.Rows[i][j].ToString(), font));

                    }

                }

                document.Add(table);

                document.Close();

                writer.Close();

                stream.Dispose();

                GenepointLog.Info("結束導出pdf");

                return true;

            }

            catch (Exception ex)

            {

                GenepointLog.Error($"導出pdf失敗{PDFFile}", ex);

                return false;

            }

        }