public void listar() { Int32 Id_Img = 1; String Img = "img_"; foreach (DataRow row in dt.Rows) { for (int i = 0; i < dt.Columns.Count; i++) { Img += i.ToString(); } } GV_prodImage.DataSource = Obj.ListarProductoFoto(1, TxtBuscarG.Value.ToString()); GV_prodImage.DataBind(); DataList1.DataSource = Obj.ListarProductoFoto(1, TxtBuscarG.Value.ToString()); DataList1.DataBind(); }