NPOI：处理xls文件中的合并行

        /// <summary>
        /// NPOI根据路径获取文件转换成DataTable
        /// </summary>
        /// <param name="FilePath"></param>
        /// <returns></returns>
        private DataTable NpoiReader(string FilePath)
        {
            FileStream stream = System.IO.File.OpenRead(FilePath);
            IWorkbook workbook = new HSSFWorkbook(stream);
            ISheet sheet = workbook.GetSheetAt(0);//获取第一行列数据
            DataTable table = new DataTable();
            #region 循环遍历获取表的列名
            for (var i = 0; i < sheet.GetRow(0).LastCellNum; i++)
            {
                table.Columns.Add(sheet.GetRow(0).GetCell(i).ToString());//逐个添加列名
            }
            for (var i = sheet.LastRowNum; i > 0; i--)
            {
                IRow row = sheet.GetRow(i);
                List<string> dataList = new List<string>();
                for (var j = 0; j < row.LastCellNum; j++)
                {
                    ICell cell = row.GetCell(j);
                    int rowIndex = i;
                    while (cell == null)
                    {
                        if (i > 0)
                        {
                            cell = sheet.GetRow(--rowIndex).GetCell(j);
                        }
                        else
                        {
                            continue;
                        }
                    }
                    dataList.Add(cell.ToString());
                }
                table.Rows.Add(dataList.ToArray());
            }
            #endregion
            return table;
        }     

　　

用以上方法将xls文件路径处理后转换成DataTable。

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