how can I save entered data from dynamic controls to a database?

 Imports System.Data

Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls
 
Partial Public Class [Default2]
    Inherits System.Web.UI.Page
 
    Private numOfColumns As Integer = 1
    Private ctr As Integer = 0
    Private table As Table = Nothing
 
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
        If Not IsPostBack Then
            table = New Table()
            table.ID = "tableBuild"
            Session("table") = table
 
            ViewState("ctr") = ctr
        End If
        ctr = CType(ViewState("ctr"), Int32)
        table = DirectCast(Session("table"), Table)
        Panel1.Controls.Add(table)
 
    End Sub
    Private Sub GenerateTable(ByVal colsCount As Integer)
        ctr += 1
 
        Dim row As New TableRow()
 
        Dim cell As New TableCell()
 
        Dim tb As New TextBox()
 
        tb.ID = "TextBoxRow_" & ctr
        tb.Width = 80
 
        ' Add the control to the TableCell

        cell.Controls.Add(tb)
 
        ' Add the TableCell to the TableRow

        row.Cells.Add(cell)
 
        Dim cell1 As New TableCell()
 
        Dim dd As New DropDownList
        dd.ID = "dd1" & ctr
 
        dd.Width = 80
 
        Dim tb1 As New TextBox()
        tb1.ID = "TextBox1Row_" & ctr
 
        tb1.Width = 80
 
        ' Add the control to the TableCell

        cell1.Controls.Add(tb1)
        '----------
        cell1.Controls.Add(dd)
        '------------------------
        ' Add the TableCell to the TableRow

        row.Cells.Add(cell1)
 
        ' Add the TableRow to the Table

        table.Rows.Add(row)
        Session("table") = table
        ViewState("ctr") = ctr
 
    End Sub
 

    Protected Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click
        numOfColumns = 1
 
        'Generate the Table based from the inputs

        GenerateTable(numOfColumns)
    End Sub
 
End Class