学用MVC4做网站三：3.3更新栏目

news/2024/5/9 13:22:10/文章来源:https://blog.csdn.net/weixin_30629653/article/details/96986383

序

一、用户

二、用户组

三、栏目

3.1添加栏目

3.2浏览栏目

3.3更新栏目

上次在树形列表里面点击栏目名称后跳转到详细信息页面~/Category/ManageDetails/id。在详细页面里点修改，来完成栏目资料修改。

先打开【CategoryController】添加[ManageDetails(int id)]action

/// <summary>/// 栏目详细资料/// </summary>/// <param name="id"></param>/// <returns></returns>public ActionResult ManageDetails(int id){categoryRsy = new CategoryRepository();var _node = categoryRsy.Find(id);if (_node == null){Error _e = new Error { Title = "栏目不存在", Details = "栏目不存在", Cause =  Server.UrlEncode("<li>栏目已经删除</li>"), Solution = Server.UrlEncode("<li>返回<a href='" + Url.Action("Manage", "Cayegory") + "'>栏目栏目管理</a></li>") };return RedirectToAction("ManageError", "Prompt", _e);}ModuleRepository _moduleRsy = new ModuleRepository();var _modules = _moduleRsy.List(true);List<SelectListItem> _slimodule = new List<SelectListItem>(_modules.Count());foreach (Module _module in _modules){if (_node.Model == _module.Model) _slimodule.Add(new SelectListItem { Text = _module.Name, Value = _module.Model, Selected = true });else _slimodule.Add(new SelectListItem { Text = _module.Name, Value = _module.Model });}ViewData.Add("Model", _slimodule);var _type = TypeSelectList;_type.SingleOrDefault(t => t.Value == _node.Type.ToString()).Selected = true;ViewData.Add("Type", _type);return View(_node);}

代码先是看栏目是否存在，不存在跳转到错误页面，后面是添加"Model“和“Type”的ViewData

右键添加强类型视图ManageDetails.cshtml,内容基本与ManageAdd.cshtml类似

@model Ninesky.Models.Category@{ViewBag.Title = "栏目信息";Layout = "~/Views/Layout/_Manage.cshtml";
}<div class="workspace"><div class="inside"><div class="notebar"><img alt="" src="~/Skins/Default/Manage/Images/Category.gif" />栏目信息</div>@using (Html.BeginForm("ManageUpdate","Category")){@Html.ValidationSummary(true)<fieldset><legend>详细资料</legend><ul>@Html.HiddenFor(model => model.CategoryId)<li><div class="editor-label">@Html.LabelFor(model => model.CategoryId)</div><div class="editor-field">@Html.DisplayTextFor(model => model.CategoryId)</div></li><li><div class="editor-label">@Html.LabelFor(model => model.Name)</div><div class="editor-field">@Html.EditorFor(model => model.Name)@Html.ValidationMessageFor(model => model.Name)</div></li><li><div class="editor-label">@Html.LabelFor(model => model.ParentId)</div><div class="editor-field">@Html.TextBoxFor(model => model.ParentId, new { @class = "easyui-combotree", data_options = "url:'" + Url.Action("JsonTreeParent", "Category") + "'" })@Html.ValidationMessageFor(model => model.ParentId)</div></li><li><div class="editor-label">@Html.LabelFor(model => model.Type)</div><div class="editor-field">@Html.DropDownList("Type")@Html.ValidationMessageFor(model => model.Type)</div></li><li id="li_model"><div class="editor-label">@Html.LabelFor(model => model.Model)</div><div class="editor-field">@Html.DropDownList("Model")@Html.ValidationMessageFor(model => model.Model)</div></li><li id="li_categoryview"><div class="editor-label">@Html.LabelFor(model => model.CategoryView)</div><div class="editor-field">@Html.EditorFor(model => model.CategoryView)@Html.ValidationMessageFor(model => model.CategoryView)</div></li><li id="li_contentview"><div class="editor-label">@Html.LabelFor(model => model.ContentView)</div><div class="editor-field">@Html.EditorFor(model => model.ContentView)@Html.ValidationMessageFor(model => model.ContentView)</div></li><li id="li_nav"><div class="editor-label">@Html.LabelFor(model => model.Navigation)</div><div class="editor-field">@Html.EditorFor(model => model.Navigation)@Html.ValidationMessageFor(model => model.Navigation)</div></li><li><div class="editor-label">@Html.LabelFor(model => model.Order)</div><div class="editor-field">@Html.EditorFor(model => model.Order)@Html.ValidationMessageFor(model => model.Order)</div></li><li><div class="editor-label"><input id="Submit1" type="submit" value="修改" /></div><div class="editor-field"></div></li></ul></fieldset>}</div>
</div>
<div class="left"><div class="top"></div>@Html.Action("ManagePartialTree", "Category")
</div>
<div class="split"></div>
<div class="clear"></div>
<script type="text/javascript">Details();$("#Type").change(function () {Details();});function Details() {var v = $("#Type").val();if (v == "0") {$("#li_model").show();$("#li_categoryview").show();$("#li_contentview").show();$("#li_nav").hide();$("#Navigation").val("");}else if (v == "1") {$("#li_model").hide();$("#li_categoryview").show();$("#li_contentview").hide();$("#ContentView").val("");$("#li_nav").hide();$("#Navigation").val("");}else if (v == "2") {$("#li_model").hide();$("#li_categoryview").hide();$("#CategoryView").val("");$("#li_contentview").hide();$("#ContentView").val("");$("#li_nav").show();}}
</script>
@section Scripts {@Styles.Render("~/EasyUi/icon")@Scripts.Render("~/bundles/EasyUi")@Scripts.Render("~/bundles/jqueryval")
}

注意的是 @using (Html.BeginForm("ManageUpdate","Category"))这句；表示点修改按钮的后是向ManageUpdate提交数据。下面开始做这个action

在【CategoryController】里添加httppost方式的[ManageUpdate]action

/// <summary>/// 修改栏目信息/// </summary>/// <param name="category"></param>/// <returns></returns>public ActionResult ManageUpdate(Category category){switch (category.Type){case 0:category.Navigation = "";break;case 1:category.Model = "";category.ContentView = "";category.Navigation = "";break;case 2:category.Model = "";category.CategoryView = "";category.ContentView = "";break;}categoryRsy = new CategoryRepository();if (categoryRsy.Update(category)){Notice _n = new Notice { Title = "修改栏目成功", Details = "修改栏目成功！", DwellTime = 5, NavigationName = "栏目详细信息", NavigationUrl = Url.Action("ManageDetails", "Category", new { id = category.CategoryId }) };return RedirectToAction("ManageNotice", "Prompt", _n);}else{Error _e = new Error { Title = "修改栏目失败", Details = "在修改栏目信息时，未能保存到数据库", Cause = "系统错误", Solution = Server.UrlEncode("<li>返回<a href='" + Url.Action("ManageDetails", "Category", new { id = category.CategoryId }) + "'>栏目详细资料</a>页面，修改信息后重新操作</li><li>联系网站管理员</li>") };return RedirectToAction("ManageError", "Prompt", _e);}}