Need help in fetching the image from database

Hi all

I wrote the below code in handler for storing and fetching image from the database

Handler.ashx

<%@ WebHandler Language="C#" Class="ShowImage" %>
 
using System;
using System.Configuration;
using System.Web;
using System.IO;
using System.Data;
using System.Data.SqlClient;
 
public class ShowImage : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
       Int32 empno;
       if (context.Request.QueryString["id"] != null)
            empno = Convert.ToInt32(context.Request.QueryString["id"]);
       else
            throw new ArgumentException("No parameter specified");
 
       context.Response.ContentType = "image/jpeg";
       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(int empno)
    {
 string conn = ConfigurationManager.ConnectionStrings  ["EmployeeConnString"].ConnectionString;
        SqlConnection connection = new SqlConnection(conn);
        string sql = "SELECT empimg FROM EmpDetails WHERE empid = @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;
        }
    }
 
 
}

storing the image is working properly but retrieving is not working..

Please tell me how to retrieve

Thank you

Tags: C#, WebForms, SQL Server, SQL Server 2008