public void bind()
    {
        string ss = Session["search_img"].ToString();

        using (SqlConnection con = new SqlConnection())
        {
            con.ConnectionString = ConfigurationManager
                                   .ConnectionStrings["connectionStr"].ConnectionString;
            SqlCommand     cmd = new SqlCommand("select fname,img from search_item where sig='" + ss + "' ", con);
            SqlDataAdapter da  = new SqlDataAdapter(cmd);
            DataSet        ds  = new DataSet();
            da.Fill(ds);
            Dtlst_img.DataSource = ds;
            Dtlst_img.DataBind();
        }
    }
    public void databind_img()
    {
        DirectoryInfo dir = new DirectoryInfo(MapPath("~/Cloud Server/Picture/"));

        FileInfo[] files     = dir.GetFiles();
        ArrayList  listItems = new ArrayList();

        foreach (FileInfo info in files)
        {
            listItems.Add(info);
        }
        PagedDataSource pd = new PagedDataSource();

        pd.AllowPaging       = true;
        pd.DataSource        = listItems;
        pd.PageSize          = 3;
        Dtlst_img.DataSource = pd;
        Dtlst_img.DataBind();
    }