public ActionResult Delete(int processId, int taskId)
 {
     try
     {
         string result = _workFlowService.Delete(processId);
         return(RedirectToAction("Index", new { taskId = taskId }).WithMessage(this, result, MessageType.Success));
     }
     catch (System.Exception ex)
     {
         return(RedirectToAction("Index", new { taskId = taskId }).WithMessage(this, string.Format("{0}", ex.Message), MessageType.Danger));
     }
 }