public ActionResult ReleaseTask(ReleaseTaskModel model)
        {
            try
            {
                model.TaskLogo = imgurl;
                OperationResult result = TaskModuleSiteContract.ReleaseTask(model);

                string msg = result.Message ?? result.ResultType.ToDescription();

                if (result.ResultType == OperationResultType.Success)
                {
                    return(Redirect(model.ReturnUrl));
                }

                var categoryList = GetCategoryList(0);
                ViewData["categoryList"] = categoryList;
                ModelState.AddModelError("", msg);
                return(View());
            }
            catch (Exception e)
            {
                ModelState.AddModelError("", e.Message);
                return(View());
            }
        }