Stuff

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;

public partial class Publish_Product : System.Web.UI.Page
{
    protected OleDbDataAdapter da;
    protected OleDbConnection cn;
    protected DataTable dt;
    protected string _mTitleProduct = "";
    protected string _mTitleType = "";
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (Request.Params["id"] != null)
            {
                loadData(Request.Params["id"].ToString());
                _mTitleProduct = loadTitleProduct(Request.Params["id"].ToString());
            }
            if (Request.Params["type"] != null)
            {
                loadDataType(Request.Params["type"].ToString());
                _mTitleType = loadTitleType(Request.Params["type"].ToString());
            }
        }

    }
    protected void Connection()
    {
        string strCn = "Provider=Microsoft.Jet.OLEDB.4.0;";
        strCn += "Data Source=" + Server.MapPath("~/App_Data/hdshop.mdb");
        cn = new OleDbConnection(strCn);
        if (cn.State != ConnectionState.Open)
            cn.Open();
    }
    protected void loadData(string id)
    {

        Connection();
        string strSql = "Select top 15 * from ProductDetail where Hide=0 and ProductID='" + id.ToString() + "'";
        da = new OleDbDataAdapter(strSql, cn);
        dt = new DataTable();
        da.Fill(dt);
        cn.Close();
        if (dt.Rows.Count > 0 && dt != null)
        {
            DataList1.DataSource = dt;
            DataList1.DataBind();
        }
    }

    protected string loadTitleProduct(string id)
    {
        string data = "";
        Connection();
        string strSql = "Select Title from Product where IDProduct='" + id.ToString() + "'";
        da = new OleDbDataAdapter(strSql, cn);
        dt = new DataTable();
        da.Fill(dt);
        cn.Close();
        if (dt.Rows.Count > 0 && dt != null)
        {
            foreach (DataRow dr in dt.Rows)
            {
                data += dr["Title"].ToString();
            }
        }
        return data;
    }

    protected void loadDataType(string type)
    {
        Connection();
        string strSql = "Select top 15 * from ProductDetail,Product where idproduct=productid and ProducttypeID='" + type.ToString() + "'";
        da = new OleDbDataAdapter(strSql, cn);
        dt = new DataTable();
        da.Fill(dt);
        cn.Close();
        if (dt.Rows.Count > 0 && dt != null)
        {
            DataList1.DataSource = dt;
            DataList1.DataBind();
        }

    }
    protected string loadTitleType(string type)
    {
        string data = "";
        Connection();
        string strSql = "Select Title from producttype where idtype='" + type.ToString() + "'";
        da = new OleDbDataAdapter(strSql, cn);
        dt = new DataTable();
        da.Fill(dt);
        cn.Close();
        if (dt.Rows.Count > 0 && dt != null)
        {
            foreach (DataRow dr in dt.Rows)
            {
                data += dr["Title"].ToString();
            }
        }
        return data;
    }
}