ReadCsvDataToDataTable

    private DataTable ImportCsvToDT(string FilePath)
    {
        DataTable dt = new DataTable();
        StreamReader _Reader = null;
        string[] iRows = null;
        string[] iCols = null;
        string cellContent = "";
        try
        {
            //判斷文件是否存在
            if (File.Exists(FilePath))
            {
                //讀文件
                _Reader = new StreamReader(FilePath, Encoding.Default);
                string line = "";
                //判斷是否有下一行
                while (_Reader.Peek()>0)
                {
                    if (line.Length > 0)
                    {
                        line += "/" + _Reader.ReadLine();
                    }
                    else
                    {
                        line += _Reader.ReadLine();
                    }

                }
                //行
                iRows = line.Split(new Char[]{'/'});

                //循環行
                for (int iRow = 0; iRow < iRows.Length; iRow++)
                {
                    //列
                    iCols = iRows[iRow].Split(new Char[] { ','});
                    DataRow dr = dt.NewRow();

                    //循環列
                    for (int iCol = 0; iCol < iCols.Length; iCol++)
                    {
                        cellContent = iCols[iCol].ToString();
                        if (iRow == 0)
                        {
                            //添加列頭
                            dt.Columns.Add(cellContent);
                        }
                        else
                        {
                            //添加列值
                            dr[iCol] = cellContent;
                        }
                    }
                    //添加列
                    if (iRow != 0)
                        dt.Rows.Add(dr);
                   
                }

                //判斷列是否合乎要求
                if (dt.Columns.Count > 8)
                {
                    for (int i = 9; i < dt.Columns.Count; i++)
                    {
                        //當表列大於8時刪除多餘的列
                        dt.Columns.RemoveAt(i);
                    }
                }
                if (dt.Columns.Count < 8)
                {
                    int k = 8 - dt.Columns.Count;
                    for (int i = 0; i < k; i++)
                    {
                        //當表列小於8時刪除多餘的列
                        dt.Columns.Add(new DataColumn());
                    }
                }

            }
        }
        catch (Exception ex)
        {
            return null;
        }
        finally
        {
            _Reader.Close();
        }
        return dt;
    }