protected void ddlServidor_SelectedIndexChanged(object sender, EventArgs e) { if (ddlServidor.SelectedValue != "0") { objCatalogo.ListaBDPorServidorApp(ref ddlBD, Convert.ToInt32(ddlServidor.SelectedValue), Convert.ToInt32(ddlAplicacion.SelectedValue)); ddlBD.DataBind(); if (ddlBD.Items.Count == 2) { ddlBD.SelectedIndex = 1; } } else { ddlBD.DataSource = null; ddlBD.DataBind(); } }