productdetail.aspx.cs

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using System;
using System.Data;
using System.Data.SqlClient;
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;

public partial class productdetail : System.Web.UI.Page
{
    private static string productID;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
            productID=Request.QueryString["productid"].Trim().ToString();
        Getdescription();
        
    }
    private void Getdescription()
    {
        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["shopConnectionString"].ToString());
        SqlCommand com = new SqlCommand("select productname,productdescription,cast(saleprice as nvarchar)as price from product where productID='" + productID + "'", conn);
        conn.Open();

            SqlDataReader dataReader = com.ExecuteReader();
            dataReader.Read();
            Label1.Text = dataReader["productname"].ToString();
            Label2.Text = dataReader["productdescription"].ToString();
            Label3.Text = dataReader["price"].ToString();
        
        dataReader.Close();
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Redirect("shoppingcart.aspx?productID="+productID+"&&quantity="+DropDownList1.SelectedValue);
    }
protected void  DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
}
    protected void Button2_Click(object sender, EventArgs e)
    {
        Response.Redirect("product.aspx");
    }
}