IMAGE DELETE FROM WEBSITE FOLDER

SqlCommand cmd1 = new SqlCommand("select image from audit where image=@image", con);
        SqlCommand cmd = new SqlCommand("delete from audit where image=@image", con);
        cmd.Parameters.Add("@image", SqlDbType.VarChar).Value = (GridView1.DataKeys[e.RowIndex].Value);
        cmd1.Parameters.Add("@image", SqlDbType.VarChar).Value = (GridView1.DataKeys[e.RowIndex].Value);
       
       
     

     
        con.Open();
       
       
        SqlDataReader dr= cmd1.ExecuteReader();
        dr.Read();
        string s =Server.MapPath(dr[0].ToString());
       
        if (File.Exists(s))
        {
            System.IO.File.Delete(s);
            Response.Write("Deleted");
        }
       
        dr.Close();
        cmd.ExecuteNonQuery();
        con.Close();
        bind();