How to display image?

<div><asp:Image ID="Image1" runat="server" ImageUrl='Images/ProductImages/<%# Eval("Extention") %>'  Height="100" Width="100"></asp:Image></div>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Globalization;
using System.Threading;

public partial class OrderHistory : System.Web.UI.Page
{
    SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;Initial Catalog=KalzAgency;Integrated Security=true");
    public static String CS = ConfigurationManager.ConnectionStrings["KalzAgency"].ConnectionString;
    
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["USERNAME"] != null)
        {
            if (!IsPostBack)
            {
                this.BindProductImage();
            }
            
            string id = Session["UserID"].ToString();

        con.Open();
        SqlCommand cmd = con.CreateCommand();
        cmd.CommandType = CommandType.Text;
        cmd.CommandText = "SELECT * FROM tblOrderProducts WHERE UserID = '" + id + "'";
        cmd.ExecuteNonQuery();
        DataTable dt = new DataTable();
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        da.Fill(dt);
        r2.DataSource = dt;
        r2.DataBind();
      

        con.Close();

        }

        else
        {
            Response.Redirect("~/SignIn.aspx");
        }

      


    }

    private void BindProductImage()
    {
        Int64 PID = Convert.ToInt64(Request.QueryString["PID"]);
        Int64 extention = Convert.ToInt64(Request.QueryString["Extention"]);
        using (SqlConnection con = new SqlConnection(CS))
        {
            SqlCommand cmd = new SqlCommand("BindProductImages", con)
            {
                CommandType = CommandType.StoredProcedure
            };
            cmd.Parameters.AddWithValue("@PID", PID);
            cmd.Parameters.AddWithValue("@Extention", extention);
            using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
            {
                DataTable dt = new DataTable();
                sda.Fill(dt);
                r2.DataSource = dt;
                r2.DataBind();
            }
        }
    }

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[BindProductImages]
(
@PID int,
@Extention nvarchar(500)
)
AS
SELECT * FROM tblProductImages where PID = @PID