Mostrar imagen desde SQL C#

[jahman]

hola tengo una funcion q rescate de internet pero lamentabblemente no me funciona al hacer el debug todo marcha bien pero cuando termina muestra como q la imagen no se encuentra....en la base de datos tengo un campo llamado Contents q es del tipo Image.


Default.aspx

Código:

protected void Page_Load(object sender, EventArgs e)
    {
        SqlConnection connection = null;
        try
        {
            // Insert the employee name and image into db
            string conn = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
            connection = new SqlConnection(conn);

            connection.Open();
            string sql = "select TOP 1 ItemId from RubrikkImg.dbo.Attachment";
            SqlCommand cmd = new SqlCommand(sql, connection);
            int ItemId = Convert.ToInt32(cmd.ExecuteScalar());
            lblResult.Text = String.Format("ItemId is {0}", ItemId);

            // Display the image from the database
            Image1.ImageUrl = "~/ImgHandler.ashx?ItemId=" + ItemId;
        }
        catch
        {
            lblResult.Text = "There was an error";
        }
        finally
        {
            connection.Close();
        }
    }

ImgHandler.ashx

Código:

<%@ WebHandler Language="C#" Class="ImgHandler" %>

using System;
using System.Configuration;
using System.Web;
using System.IO;
using System.Data;
using System.Data.SqlClient;
using RubrikkImg;
using System.Collections.Generic;

public class ImgHandler : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
       string empno;
       if (context.Request.QueryString["ItemId"] != null)
           empno = context.Request.QueryString["ItemId"].ToString();
       else
            throw new ArgumentException("No parameter specified");
 
       context.Response.ContentType = "jpeg/bmp";
       Stream strm = ShowEmpImage(empno);
       byte[] buffer = new byte[4096];
       int byteSeq = strm.Read(buffer, 0, 4096);
 
       while (byteSeq > 0)
       {
           context.Response.OutputStream.Write(buffer, 0, byteSeq);
           byteSeq = strm.Read(buffer, 0, 4096);
       }       
       context.Response.BinaryWrite(buffer);
    }
 
    public Stream ShowEmpImage(string empno)
    {
        string conn = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
        SqlConnection connection = new SqlConnection(conn);
        string sql = "SELECT Contents FROM RubrikkImg.dbo.Attachment WHERE ItemId = @ID";
        SqlCommand cmd = new SqlCommand(sql,connection);
        cmd.CommandType = CommandType.Text;
        cmd.Parameters.AddWithValue("@ID", empno);
        connection.Open();
        
        object img = cmd.ExecuteScalar();
        try
        {
            return new MemoryStream((byte[]) img);
        }
        catch
        {
            return null;
        }
        /*finally
        {
            connection.Close();
        }*/
    }
 
    public bool IsReusable
    {
        get
        {
            return false;
        }
    }
 
 
}