从读取文件中将多行导出到Excel

Question

我有一些代码目前用于从Excel电子表格中获取单行数据并将其转换为另一个电子表格以发送给我的客户。我想要做的是让这段代码在最终的电子表格中返回多行。现在我正在这样做：

using (OleDbConnection conn = new OleDbConnection(pathConn))
{
    for (int i = 0; i < excelSheets.Length; i++)
    {
        OleDbDataAdapter adapter = new OleDbDataAdapter("Select * from [" +
        excelSheets[i] + "]", conn);
        System.Data.DataTable dt = new System.Data.DataTable();

        adapter.Fill(dt);
        tring dtBrokerName = dt.Rows[0].Field<string>("ProducerName");                   

        //[Sets numerous fields]

        // create final output report based on imported data
        GenerateExcelData(dtBrokerName, dtExpirationDate, dtPolicyNumber, 
        dtCurrentPrice, tier, usage, city, dtcValue);
    }
}

我将最终报告中所需的信息传递给此方法：

public void GenerateExcelData(string dtBrokerName, DateTime dtExpirationDate, string dtPolicyNumber, 
                              double dtCurrentPrice, string tier, string usage, string city, decimal dtcValue)
{
    CreateExcelDoc BatchRenewalReport = new CreateExcelDoc();
    //creates the header row
    BatchRenewalReport.createHeaders(1, 1, "Producer", "A1", "A1", 0, "#", true, 30, "n");
    BatchRenewalReport.createHeaders(1, 2, "Expiration Date", "B1", "B1", 0, "#", true, 15, "n");
    BatchRenewalReport.createHeaders(1, 3, "Policy #", "C1", "C1", 0, "#", true, 12.86, "n");
    BatchRenewalReport.createHeaders(1, 4, "Current Price", "D1", "D1", 0, "#",  true, 15.71, "n");
    BatchRenewalReport.createHeaders(1, 5, "New Price", "E1", "E1", 0, "#", true, 15.71, "n");
    BatchRenewalReport.createHeaders(1, 6, "$ Difference", "F1", "F1", 0, "#", true, 12.14, "n");
    BatchRenewalReport.createHeaders(1, 7, "% Difference", "G1", "G1", 0, "#", true, 12.14, "n");
    BatchRenewalReport.createHeaders(1, 8, "Tier", "H1", "H1", 0, "#", true, 15, "n");
    BatchRenewalReport.createHeaders(1, 9, "Usage", "I1", "I1", 0, "#", true, 9, "n");
    BatchRenewalReport.createHeaders(1, 10, "City", "J1", "J1", 0, "#", true, 16.43, "n");
    BatchRenewalReport.createHeaders(1, 11, "DTC", "K1", "K1", 0, "#", true, 6.43, "n");

    //fills additional rows
    BatchRenewalReport.addData(2, 1, dtBrokerName, "A2", "A2", "");
    BatchRenewalReport.addData(2, 2, dtExpirationDate.ToString(), "B2", "B2", "mm/dd/yyyy");
    BatchRenewalReport.addData(2, 3, dtPolicyNumber, "C2", "C2", "");
    BatchRenewalReport.addData(2, 4, dtCurrentPrice.ToString(), "D2", "D2", "$#,##0");
    BatchRenewalReport.addData(2, 5, "3117", "E2", "E2", "$#,##0");
    BatchRenewalReport.addData(2, 6, "=E2-D2", "F2", "F2", "$#,##0");
    BatchRenewalReport.addData(2, 7, "=(E2/D2)-1", "G2", "G2", "#.#0%");
    BatchRenewalReport.addData(2, 8, tier, "H2", "H2", "");
    BatchRenewalReport.addData(2, 9, usage, "I2", "I2", "");
    BatchRenewalReport.addData(2, 10, city, "J2", "J2", "");
    BatchRenewalReport.addData(2, 11, dtcValue.ToString(), "K2", "K2", "0#.##0");
}

利用这个由第三方开发的课程：

class CreateExcelDoc
{
    private Excel.Application app = null;
    private Excel.Workbook workbook = null;
    private Excel.Worksheet worksheet = null;
    private Excel.Range workSheet_range = null;

    public CreateExcelDoc()
    {
        createDoc();
    }

    public void createDoc()
    {
        try
        {
            app = new Excel.Application();
            app.Visible = true;
            workbook = app.Workbooks.Add(1);
            worksheet = (Excel.Worksheet)workbook.Sheets[1];
        }
        catch (Exception e)
        {
            Console.Write("Error");
        }
        finally
        {
        }
    }

    public void createHeaders(int row, int col, string htext, string cell1,
    string cell2, int mergeColumns, string b, bool font, double size, string
    fcolor)
    {
        worksheet.Cells[row, col] = htext;
        workSheet_range = worksheet.get_Range(cell1, cell2);
        workSheet_range.Merge(mergeColumns);

        switch (b)
        {
            case "Black":
                workSheet_range.Interior.Color = Color.Black.ToArgb();
                break;
            case "Gray":
                workSheet_range.Interior.Color = Color.Gray.ToArgb();
                break;
            case "Red":
                workSheet_range.Interior.Color = Color.Red.ToArgb();
                break;
            case "Green":
                workSheet_range.Interior.Color = Color.ForestGreen.ToArgb();
                break;
            case "Yellow":
                workSheet_range.Interior.Color = Color.LightYellow.ToArgb();
                break;
            default:
                //  workSheet_range.Interior.Color = System.Drawing.Color..ToArgb();
                break;
        }

        workSheet_range.Borders.Color = Color.Black.ToArgb();
        workSheet_range.Font.Bold = font;
        workSheet_range.ColumnWidth = size;

        if (fcolor.Equals(""))
        {
            workSheet_range.Font.Color = Color.White.ToArgb();
        }
        else
        {
            workSheet_range.Font.Color = Color.Black.ToArgb();
        }
    }

    public void addData(int row, int col, string data,
        string cell1, string cell2, string format)
    {
        worksheet.Cells[row, col] = data;
        workSheet_range = worksheet.get_Range(cell1, cell2);
        workSheet_range.Borders.Color = Color.Black.ToArgb();
        workSheet_range.NumberFormat = format;
    }
}

我试图让程序读取我导入的Excel文件中的每一行，并在导出报告上逐行返回值。我试图改变：

BatchRenewalReport.addData(2, 1, dtBrokerName, "A2", "A2", "");  

线到目前为止都没有成功。