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

/// 
        /// 栏目详细资料        /// 
        ///         /// 
             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("
栏目已经删除
"), Solution = Server.UrlEncode("
返回栏目栏目管理
") };                return RedirectToAction("ManageError", "Prompt", _e);            }            ModuleRepository _moduleRsy = new ModuleRepository();            var _modules = _moduleRsy.List(true);            List
     
       _slimodule = new List
      
       (_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";}
     
    
      
        
       
            
        栏目信息        
       
        @using (Html.BeginForm("ManageUpdate","Category"))        {            @Html.ValidationSummary(true)            
       
                
        
详细资料
                
        
                             @Html.HiddenFor(model => model.CategoryId)                    
         
                        
          
            @Html.LabelFor(model => model.CategoryId) 
          
                        
          
            @Html.DisplayTextFor(model => model.CategoryId) 
          
                    
                    
         
                        
          
            @Html.LabelFor(model => model.Name) 
          
                        
          
            @Html.EditorFor(model => model.Name) @Html.ValidationMessageFor(model => model.Name) 
          
                    
                    
         
                        
          
            @Html.LabelFor(model => model.ParentId) 
          
                        
          
            @Html.TextBoxFor(model => model.ParentId, new { @class = "easyui-combotree", data_options = "url:'" + Url.Action("JsonTreeParent", "Category") + "'" }) @Html.ValidationMessageFor(model => model.ParentId) 
          
                    
                    
         
                        
          
            @Html.LabelFor(model => model.Type) 
          
                        
          
            @Html.DropDownList("Type") @Html.ValidationMessageFor(model => model.Type) 
          
                    
                    
         
                        
          
            @Html.LabelFor(model => model.Model) 
          
                        
          
            @Html.DropDownList("Model") @Html.ValidationMessageFor(model => model.Model) 
          
                    
                    
         
                        
          
            @Html.LabelFor(model => model.CategoryView) 
          
                        
          
            @Html.EditorFor(model => model.CategoryView) @Html.ValidationMessageFor(model => model.CategoryView) 
          
                    
                    
         
                        
          
            @Html.LabelFor(model => model.ContentView) 
          
                        
          
            @Html.EditorFor(model => model.ContentView) @Html.ValidationMessageFor(model => model.ContentView) 
          
                    
                    
         
                        
          
            @Html.LabelFor(model => model.Navigation) 
          
                        
          
            @Html.EditorFor(model => model.Navigation) @Html.ValidationMessageFor(model => model.Navigation) 
          
                    
                    
         
                        
          
            @Html.LabelFor(model => model.Order) 
          
                        
          
            @Html.EditorFor(model => model.Order) @Html.ValidationMessageFor(model => model.Order) 
          
                    
                    
         
                        
          
 
            
          
                        
          
 
          
                                            
                
        
            
       
        }    
      
     
     
    
      
    @Html.Action("ManagePartialTree", "Category")
     
     
     
@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

/// 
        /// 修改栏目信息        /// 
        ///         /// 
             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("
返回栏目详细资料页面，修改信息后重新操作
联系网站管理员
") };                return RedirectToAction("ManageError", "Prompt", _e);            }        }

很简单，首先是判断栏目类型，根据栏目类型清除无关数据，然后将修改保存到数据库。

试一下将“测试栏目”改成“公司简介”

保存成功！

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代码包：