C#DataTable導出Excel

先將數據庫中的數據讀取到DataTable中，然後調用下面的代碼，"cells.Add(1, 1, "表頭1");"這段代碼的意思是在Excel中添加一行表頭，比如“姓名”，“性別”，“聯繫電話”等，需要幾列就對應的添加幾列。“cells.Add(2 + row, 1, dt.Rows[row]["對應表頭1的字段"]);”這段代碼的意思是獲取對應表頭的數據，比如表頭1如果爲“姓名”，這裏"對應表頭1的字段"就改成字段"Name"。

DataTable dt = GetDataTable();
                    if (dt == null)
                        return;
                    try
                    {
                        XlsDocument xls = new XlsDocument();
                        string fileName = Guid.NewGuid().ToString() + ".xls";
                        xls.FileName = fileName;
                        string sheetName = "Sheet1";

                        Worksheet sheet = xls.Workbook.Worksheets.Add(sheetName);
                        Cells cells = sheet.Cells;
                        cells.Add(1, 1, "表頭1");
                        cells.Add(1, 2, "表頭2");
                        cells.Add(1, 3, "表頭3");
                        cells.Add(1, 4, "表頭4");
                        cells.Add(1, 5, "表頭5");
                        cells.Add(1, 6, "表頭6");
                        cells.Add(1, 7, "表頭7");
                        cells.Add(1, 8, "表頭8");

                        for (int row = 0; row < dt.Rows.Count; row++)
                        {
                            cells.Add(2 + row, 1, dt.Rows[row]["對應表頭1的字段"]);
                            cells.Add(2 + row, 2, dt.Rows[row]["對應表頭2的字段"]);
                            cells.Add(2 + row, 3, dt.Rows[row]["對應表頭3的字段"]);
                            cells.Add(2 + row, 4, dt.Rows[row]["對應表頭4的字段"]);
                            cells.Add(2 + row, 5, dt.Rows[row]["對應表頭5的字段"]);
                            cells.Add(2 + row, 6, dt.Rows[row]["對應表頭6的字段"]);
                            cells.Add(2 + row, 7, dt.Rows[row]["對應表頭7的字段"]);
                            cells.Add(2 + row, 8, dt.Rows[row]["對應表頭8的字段"]);
                        }

                        string filePath = Server.MapPath("~/tmp/");
                        xls.Save(filePath);
                        xls = null;
                    }
                    catch (Exception)
                    {
                        throw;
                    }