using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Drawing;
using System.Drawing.Imaging;

public partial class tootepilt : System.Web.UI.Page
{

    void SaadaTyhiPilt() {
        Bitmap b = new Bitmap(200, 100);
        Graphics g = Graphics.FromImage(b);
        SolidBrush sulepea = new SolidBrush(Color.Green);
        g.DrawString("Pilti pole", new Font("times", 20), 
              sulepea, new PointF(20, 20));
        g.DrawLine(Pens.Red, 10, 50, 100, 50);
        b.Save(Response.OutputStream, ImageFormat.Gif);
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        if (Request.QueryString["tooteid"]==null) {
            Response.Write("toote kood puudub");
            Response.End();
        }
        SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings[
          "veebipoebaasConnectionString"].ConnectionString);
        SqlCommand cm=new SqlCommand("SELECT pildiDATA FROM tooted WHERE id=@id", cn);
        cn.Open();
        cm.Parameters.AddWithValue("id", int.Parse(Request.QueryString["tooteid"]));
        byte[] vastus = cm.ExecuteScalar() as byte[];
        if (vastus == null) { 
            //Response.Write("pilt puudub"); 
            SaadaTyhiPilt();
            Response.End(); }
        Response.ContentType = "image/gif";
        Response.BinaryWrite(vastus);
        Response.End();
    }
}