public async Task <ActionResult> Create(DepartmentCreateViewModel model) { if (ModelState.IsValid) { if (!string.IsNullOrEmpty(model.Name)) { var depart = await DepartmentManager.FindDepartmentByNameAsync(model.Name); if (depart == null) { depart = new Department() { Name = model.Name }; await DepartmentManager.AddEntityAsync(depart); return(RedirectToAction("Index")); } else { ModelState.AddModelError("", "已有相同名称"); } } else { ModelState.AddModelError("", "不能为空"); } } return(View(model)); }