无法在网格

Question

我用VB6编写的旧应用程序从Oracle数据库表中检索数据并在Grid中显示。我试图使用C＃实现相同但失败了。

基本思路是......网格具有一定的固定行，从前2列中的产品详细信息开始，然后是产品等级。每次填充网格后，我都会检查产品是否已更改..如果没有，则继续填充相同的行，当产品与之前的产品不同时，请转到下一行，依此类推，直到数据完成。

这在VB6中运行得非常好，但是我无法在C＃中实现相同的功能。

请帮助我!!

提前致谢

RGDS 谢卡尔

        string l_merge = string.Empty;
        string l_grade = string.Empty;
        string l_pack = string.Empty;
        string l_usage = string.Empty;
        string l_spool=string.Empty;

        string strSQL = string.Empty;
        int rowNumber = 1;

        double boxes = 0;
        double aEven = 0;
        double aUnEven = 0;
        double bGrade = 0;
        double cGrade = 0;
        double ap3UnEven = 0;
        double ap7UnEven = 0;

        double rowTotal = 0;

        try
        {
            if (rbtBoxWise.Checked)
            {
                using (DataBaseConnection dbConn = new DataBaseConnection(this._dsn, this._username, this._password))
                {
                    strSQL = "Select MERGE, DENIER, GRADECODE, SPOOLCODE, USAGEFLAG, COUNT(BOXNUMBER) As Boxes " +
                             "From TBL_BOXINHAND Where PRODUCTCODE='D' " +
                             "Group By MERGE, DENIER, GRADECODE, SPOOLCODE, USAGEFLAG " +
                             "Order By MERGE, DENIER, GRADECODE, SPOOLCODE, USAGEFLAG";

                    OracleDataReader orReader = dbConn.ExecuteReader(strSQL);                     

                    if (orReader != null && orReader.HasRows)
                    {
                        dtyStock.Rows = 1;
                        while (orReader.Read())
                        {
                            dtyStock.Rows = dtyStock.Rows + 1;
                            dtyStock.Cell(rowNumber, 1).Text = orReader["MERGE"].ToString();
                            dtyStock.Cell(rowNumber, 2).Text = orReader["DENIER"].ToString();
                            //dtyStock.Cell(rowNumber, 3).Text = "DTY - " + orReader["ILTYPE"].ToString() + " - " + orReader["LUSTURE"].ToString() + " - " + orReader["HEATER"].ToString();

                            l_merge = orReader["MERGE"].ToString();

                            do
                            {
                                l_grade = orReader["GRADECODE"].ToString();
                                l_usage = orReader["USAGEFLAG"].ToString();
                                l_spool = orReader["SPOOLCODE"].ToString();

                                if (l_grade.StartsWith("A") && l_usage.StartsWith("E") && l_spool != "P3" && l_spool != "P7")
                                {
                                    aEven = aEven + double.Parse(orReader["Boxes"].ToString());
                                    dtyStock.Cell(rowNumber, 4).Text = aEven.ToString();
                                    rowTotal = rowTotal + double.Parse(orReader["Boxes"].ToString());
                                }
                                else if (l_grade.StartsWith("A") && l_usage.StartsWith("L") && l_spool != "P3" && l_spool != "P7")
                                {
                                    aUnEven = aUnEven + double.Parse(orReader["Boxes"].ToString());
                                    dtyStock.Cell(rowNumber, 5).Text = aUnEven.ToString();
                                    rowTotal = rowTotal + double.Parse(orReader["Boxes"].ToString());
                                }
                                else if (l_grade.StartsWith("A") && l_usage.StartsWith("L") && l_spool == "P3" && l_spool != "P7")
                                {
                                    ap3UnEven = ap3UnEven + double.Parse(orReader["Boxes"].ToString());
                                    dtyStock.Cell(rowNumber, 6).Text = ap3UnEven.ToString();
                                    rowTotal = rowTotal + double.Parse(orReader["Boxes"].ToString());
                                }
                                else if (l_grade.StartsWith("A") && l_usage.StartsWith("L") && l_spool != "P3" && l_spool == "P7")
                                {
                                    ap7UnEven = ap7UnEven + double.Parse(orReader["Boxes"].ToString());
                                    dtyStock.Cell(rowNumber, 7).Text = ap7UnEven.ToString();
                                    rowTotal = rowTotal + double.Parse(orReader["Boxes"].ToString());
                                }
                                else if (l_grade.StartsWith("B"))
                                {
                                    bGrade = bGrade + double.Parse(orReader["Boxes"].ToString());
                                    dtyStock.Cell(rowNumber, 8).Text = bGrade.ToString();
                                    rowTotal = rowTotal + double.Parse(orReader["Boxes"].ToString());
                                }
                                else if (l_grade.StartsWith("C"))
                                {
                                    cGrade = cGrade + double.Parse(orReader["Boxes"].ToString());
                                    dtyStock.Cell(rowNumber, 9).Text = cGrade.ToString();
                                    rowTotal = rowTotal + double.Parse(orReader["Boxes"].ToString());
                                }

                                if (orReader != null && orReader.HasRows)
                                {
                                    orReader.Read();
                                    if (l_merge != orReader["MERGE"].ToString())
                                    {
                                        dtyStock.Cell(rowNumber, 10).Text = rowTotal.ToString();
                                        rowNumber++;

                                        boxes = 0;
                                        aEven = 0;
                                        aUnEven = 0;
                                        bGrade = 0;
                                        cGrade = 0;
                                        ap3UnEven = 0;
                                        ap7UnEven = 0;
                                        rowTotal = 0;
                                        break;
                                    }
                                }
                            }
                            while (orReader.HasRows);

                            if (!orReader.HasRows)
                            {
                                dtyStock.Cell(rowNumber, 10).Text = rowTotal.ToString();
                                rowNumber++;

                                boxes = 0;
                                aEven = 0;
                                aUnEven = 0;
                                bGrade = 0;
                                cGrade = 0;
                                ap3UnEven = 0;
                                ap7UnEven = 0;
                                rowTotal = 0;
                                break;
                            }    

                        }
                    }
                    else
                    {
                        strSQL = string.Empty;
                        MessageBox.Show(this, "Nothing is packed between selected period!!", "Empty Records", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                        refreshAll(this);
                    }
                    orReader.Close();
                }
            }
            else if (rbtNetWt.Checked)
            {
                using (DataBaseConnection dbConn = new DataBaseConnection(this._dsn, this._username, this._password))
                {
                    strSQL = "Select MERGE, DENIER, TWIST, LUSTURE, ILTYPE, HEATER, GRADECODE, PACKINGTYPECODE,SPOOLCODE, USAGEFLAG, SUM(NETWT) " +
                             "From TBL_BOXINHAND Where PRODUCTCODE='D' Order By MERGE " +
                             "Group By MERGE, DENIER, TWIST, LUSTURE, ILTYPE, HEATER, GRADECODE, PACKINGTYPECODE,SPOOLCODE, USAGEFLAG";

                    OracleDataReader orReader = dbConn.ExecuteReader(strSQL);
                    if (orReader != null && orReader.HasRows)
                    {
                        dtyStock.Rows = 1;
                        while (orReader.Read())
                        {

                        }
                    }
                    else
                    {
                        strSQL = string.Empty;
                        MessageBox.Show(this, "Nothing is packed between selected period!!", "Empty Records", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                        refreshAll(this);
                    }
                    orReader.Close();
                }
            }
            else
            {
                strSQL = string.Empty;
                MessageBox.Show(this, "Please choose either Box Wise or Net Wt Wise to continue!!", "Invalid Choice", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(this, ex.Message, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }