NPOI 獲取EXCEL 中的數據資料——EXCEL 2007 以下版本針對於XLS文件

 

 

public static DataTable ReadExcelFile(string filePath)
        {
            HSSFWorkbook hssfworkbook;
            #region//初始化信息
            try
            {
                using (FileStream file = new FileStream(filePath, FileMode.Open, FileAccess.Read))
                {
                    hssfworkbook = new HSSFWorkbook(file);
                }
            }
            catch (Exception e)
            {
                throw e;
            }
            #endregion

            ISheet sheet = hssfworkbook.GetSheetAt(0);
            System.Collections.IEnumerator rows = sheet.GetRowEnumerator();

            DataTable dt = new DataTable();

            //一行最後一個方格的編號 即總的列數  
            for (int j = 0; j < (sheet.GetRow(0).LastCellNum); j++)
            {
                dt.Columns.Add(Convert.ToChar(((int)'A') + j).ToString());
            }

            while (rows.MoveNext())
            {
                IRow row = (HSSFRow)rows.Current;
                DataRow dr = dt.NewRow();

                for (int i = 0; i < row.LastCellNum; i++)
                {
                    ICell cell = row.GetCell(i);

                    if (cell == null)
                    {
                        dr[i] = null;
                    }
                    else
                    {
                        dr[i] = cell.ToString();
                    }
                }
                dt.Rows.Add(dr);
            }
            return dt;
        }