jquery image zoom

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


public partial class _Default : System.Web.UI.Page
{
SqlConnection con = new SqlConnection("Data Source=SureshDasari;Initial Catalog=MySampleDB;Integrated Security=true");
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindDataList();
}
}
protected void BindDataList()
{
con.Open();
//Query to get ImagesName and Description from database
SqlCommand command = new SqlCommand("SELECT ImageName,Description from SlideShowTable", con);
SqlDataAdapter da = new SqlDataAdapter(command);
DataTable dt = new DataTable();
da.Fill(dt);
dlImages.DataSource = dt;
dlImages.DataBind();
con.Close();
}

protected void btnSubmit_Click(object sender, EventArgs e)
{
//Get Filename from fileupload control
string filename = Path.GetFileName(fileuploadimages.PostedFile.FileName);
//Save images into SlideImages folder
fileuploadimages.SaveAs(Server.MapPath("SlideImages/" + filename));
//Open the database connection
con.Open();
//Query to insert images name and Description into database
SqlCommand cmd = new SqlCommand("Insert into SlideShowTable(ImageName,Description) values(@ImageName,@Description)", con);
//Passing parameters to query
cmd.Parameters.AddWithValue("@ImageName", filename);
cmd.Parameters.AddWithValue("@Description", txtDesc.Text);
cmd.ExecuteNonQuery();
//Close dbconnection
con.Close();
txtDesc.Text = string.Empty;
BindDataList();
}

}