/// <summary> /// 联系我们 /// </summary> /// <returns></returns> public ActionResult ContactUs(int?id) { if (id.Value != 4) { if (_newService.CategoryId(id.Value) != 4) { throw new Exception("输入的参数有误"); } } else if (id.Value == 0) { throw new Exception("输入的参数有误"); } HomeListModel model = new HomeListModel(); if (_newService.Category(id.Value)) { //根据一级标题查询一个二级标题Id int categoryId = _newService.CategoryId(id.Value); model.CategoryId = categoryId; model.CategoryModels = _newService.GetCategoryById(id.Value).ToModelAsCollection <Category, CategoryModel>(); model.CategoryModel = _newService.GetCategory(categoryId).ToModel <CategoryModel>(); } else { model.CategoryId = id.Value; //根据二级标题去查询一级标题的Id model.CategoryModels = _newService.GetCategoryById(_newService.CategoryId(id.Value)).ToModelAsCollection <Category, CategoryModel>(); model.CategoryModel = _newService.GetCategory(id.Value).ToModel <CategoryModel>(); } return(View(model)); }