table控件换行问题.在线求解

    protected void Page_Load(object sender, EventArgs e)

    {

        int numrows;

        int i = 0;

        int j = 0;

        int n = 0;

        TableRow tr;

        TableCell tc;



        string fsql = "select field_name,description,default_value,field_type from sys_field where table_id='1' and field_type is not null  order by seq_no";

        DataTable dsql = OperateData.getRows(fsql);     

        numrows = dsql.Rows.Count;//总行数



        for (i = 0; i < numrows; i++)

        {

            tr = new TableRow();



            for (j = 0; j < 2; j++)

            {

                //c = new TableCell();

                //c.Controls.Add(new LiteralControl("row" + j + ",cell" + i));

                //r.Cells.Add(c);

                if (n < numrows) 

                {

                    string Type = dsql.Rows[n]["field_type"].ToString();

                    string field_name = dsql.Rows[n]["field_name"].ToString();

                    string description = dsql.Rows[n]["description"].ToString();                



                    if (Type == "TXT")

                    {

                        TableCell txt = new TableCell();

                        Label tx = new Label();

                        tx.Text = description + n;

                        txt.Controls.Add(tx);

                        tr.Cells.Add(txt);



                        tc = new TableCell();

                        TextBox tb = new TextBox();

                        tb.ID = field_name + "$C3T4L5$" + n;

                        tc.Controls.Add(tb);

                        tr.Cells.Add(tc);

                    }

                    else if (Type == "DAT")

                    {

                        TableCell txt = new TableCell();

                        Label tx = new Label();

                        tx.Text = description + n;

                        txt.Controls.Add(tx);

                        tr.Cells.Add(txt);



                        tc = new TableCell();

                        TextBox tb = new TextBox();

                        tb.ID = field_name + "$C3T4L5$" + n;

                        tc.Controls.Add(tb);

                        tr.Cells.Add(tc);

                    }

                    else if (Type == "OPT")

                    {

                        TableCell txt = new TableCell();

                        Label tx = new Label();

                        tx.Text = description + n;

                        txt.Controls.Add(tx);

                        tr.Cells.Add(txt);



                        tc = new TableCell();

                        DropDownList tb = new DropDownList();

                        tb.ID = field_name + "$C3T4L5$" + n;

                        tc.Controls.Add(tb);

                        tr.Cells.Add(tc);

                    }

                    else if (Type == "RAD")

                    {

                        TableCell txt = new TableCell();

                        Label tx = new Label();

                        tx.Text = description + n;

                        txt.Controls.Add(tx);

                        tr.Cells.Add(txt);



                        tc = new TableCell();

                        RadioButton tb = new RadioButton();

                        tb.ID = field_name + "$C3T4L5$" + n;

                        tc.Controls.Add(tb);

                        tr.Cells.Add(tc);

                    }

                    else if (Type == "BOX")

                    {

                        TableCell txt = new TableCell();

                        Label tx = new Label();

                        tx.Text = description + n;

                        txt.Controls.Add(tx);

                        tr.Cells.Add(txt);



                        tc = new TableCell();

                        CheckBox tb = new CheckBox();

                        tb.ID = field_name + "$C3T4L5$" + n;

                        tc.Controls.Add(tb);

                        tr.Cells.Add(tc);

                    }

                    else if (Type == "TEXT")

                    {

                        TableCell txt = new TableCell();

                        Label tx = new Label();

                        tx.Text = description + n;

                        txt.Controls.Add(tx);

                        tr.Cells.Add(txt);



                        tc = new TableCell();

                        ListBox tb = new ListBox();

                        tb.ID = field_name + "$C3T4L5$" + n;

                        tc.Controls.Add(tb);

                        tr.Cells.Add(tc);

                    }

                    else if (Type == "ATT")

                    {

                        TableCell txt = new TableCell();

                        Label tx = new Label();

                        tx.Text = description + n;

                        txt.Controls.Add(tx);

                        tr.Cells.Add(txt);



                        tc = new TableCell();

                        FileUpload tb = new FileUpload();

                        tb.ID = field_name + "$C3T4L5$" + n;

                        tc.Controls.Add(tb);

                        tr.Cells.Add(tc);

                    }

                    Response.Write("<li>行=" + j + ",列=" + i + ",序号=" + n + ",类型=" + Type +",字段"+ field_name);

                    n += 1;

                }

            }

            Table1.Rows.Add(tr);

        }

    }