public ActionResult Add(flowdefmodellist model)
        {
            ViewBag.message           = model.id_flowDefinition;
            flowdef.id_flowDefinition = model.id_flowDefinition;
            flow.id_flowdefinition    = flowdef;
            flow.id_position          = operation.GetPositionidFlow(model.id_flowDefinition);
            flow.id_user = user;
            flow.Name    = model.name;
            if (flow.id_flowdefinition != null && flow.id_position != null && flow.id_user != null && flow.Name != null)
            {
                operation.AddElement <Flow>(flow);
            }

            return(View());
        }