private void btn_BajaRol_Click(object sender, EventArgs e) { RolGestor rolGestor = new RolGestor(); Rol rol = dgv_Roles.SelectedRows[0].DataBoundItem as Rol; controller.BajaRol(rol); dgv_Roles.DataSource = null; dgv_Roles.DataSource = rolGestor.GetListRol(); }