display Images in multiple columns or in more than one clumns of GridView

First You have to add new column in database
Add extra template field in html source
Use This Class For Bind the data  

using System;
using System.Web;
using System.Configuration;
using System.Data.SqlClient;

public class Handler : IHttpHandler {
    
public void ProcessRequest (HttpContext context) 
{
SqlConnection con = new SqlConnection();
con.ConnectionString = ConfigurationManager.ConnectionStrings
                      ["ConnectionString"].ConnectionString;

// Create SQL Command 
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "Select ImageName,Image from Images" + 
                  " where ID =@ID";
cmd.CommandType = System.Data.CommandType.Text;
cmd.Connection = con;

SqlParameter ImageID = new SqlParameter
                    ("@ID", System.Data.SqlDbType.Int);
ImageID.Value = context.Request.QueryString["ID"];
cmd.Parameters.Add(ImageID);
con.Open();

// This Section bind two image in gridview
SqlDataReader dReader = cmd.ExecuteReader();
        dReader.Read();
        if (intImg == 1)
        {
            context.Response.BinaryWrite((byte[])dReader["Image"]);
        }
        else if (intImg == 2)
        {
            context.Response.BinaryWrite((byte[])dReader["Image2"]);
        }
        dReader.Close();
        con.Close();

}