public void getPistas() { try { Controllers.SubirPistaController obsubirPistaController = new Controllers.SubirPistaController(); List <Logica.Models.clsPistas> lstclsPistas = obsubirPistaController.getPistasController(); if (lstclsPistas.Count > 0) { gvwDatos.DataSource = lstclsPistas; } else { gvwDatos.DataSource = null; } gvwDatos.DataBind(); } catch (Exception ex) { ClientScript.RegisterStartupScript(this.GetType(), "Mensaje", "<script>alert('" + ex.Message + "')</script>"); } }