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asp.net, c#, dynamic users controls

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Testing.aspx.cs" Inherits="Testing" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ Register TagPrefix="obout" Namespace="Obout.ComboBox" Assembly="obout_ComboBox" %>
<%@ Register assembly="obout_Interface" namespace="Obout.Interface" tagprefix="cc1" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>How many city do you want to be listed:
        <asp:DropDownList ID="Ddl_City" runat="server">
            <asp:ListItem Value="1" Text="1"></asp:ListItem>
            <asp:ListItem Value="2" Text="2"></asp:ListItem>
            <asp:ListItem Value="3" Text="3"></asp:ListItem>
          </asp:DropDownList>
    
     <table>
    <tr><td><div id="DivItemCode" runat="server"></div></td></tr>
    </table>
    </div>
    <br />
    <asp:Label ID="Label2" runat="server" Text=""></asp:Label>
    <asp:Button ID="BtnSubmit" runat="server" Text="Submits" onclick="BtnSubmit_Click" />
    </form>
</body>
</html>

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using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Testing : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void TotalCount_SelectedIndexChanged(object sender, EventArgs e)
    {
        int TotalCountCity = int.Parse(Ddl_City.SelectedValue);
        for (int i = 0; i < TotalCountCity; i++)
        {
            // list textboxes like <asp:TextBox  name="txtCity_" & i & "><br>"

        }

         
    }
    protected void BtnSubmit_Click(object sender, EventArgs e)
    {
        //if it is clicked, capture the value back and save into the database.
    }
}

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On the code back, I just try to catch the value and save into the database.
how can i do that?

500 points for working codes.

ASKER CERTIFIED SOLUTION

karl-henrik

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