MVC4制作网站教程第四章 浏览栏目4.2

序

一、用户

二、用户组

三、栏目

3.1添加栏目

3.2浏览栏目

浏览栏目这块做个一个树形列表，添加栏目的左侧部分只写了句“左侧列表”就是指这个树形列表，等我们写完替换一下就可以了。

先在【CategoryController】里面添加[ManagePartialTree]action，这里的Partial用来说明是分部视图

/// 

    /// 栏目列表局部树视图
    /// 
    /// 
    [AdminAuthorize]
    public ActionResult ManagePartialTree()
    {
      return View();
    }

右键添加分部视图ManagePartialTree.cshtml。分部视图里用easyui的tree来显示栏目，使用异步加载，视图代码只有一行。

复制代码 代码如下:

这里从[anageTreeChildrenJson]action获取的json数据。

在【CategoryController】添加JsonResult类型的[anageTreeChildrenJson]

/// 

    /// 子栏目树形控件Json数据
    /// 
    /// 栏目id
    /// 
    [AdminAuthorize]
    public JsonResult ManageTreeChildrenJson(int id = 0)
    {
      categoryRsy = new CategoryRepository();
      var _children = categoryRsy.Children(id);
      List _trees = new List(_children.Count());
      foreach(var c in _children)
      {
        Tree _t = new Tree { id = c.CategoryId, text = c.Name};
        switch (c.Type)
        {
          case 0:
            _t.state = "closed";
            _t.iconCls = "icon-general";
            break;
          case 1:
            _t.state = "open";
            _t.iconCls = "icon-page";
            break;
          case 2:
            _t.state = "open";
            _t.iconCls = "icon-link";
            break;
        }
        _trees.Add(_t);
      }
      return Json(_trees, JsonRequestBehavior.AllowGet);
    }

这里默认id=0，根据id查找子栏目，然后遍历子栏目生成树的节点数据。

switch (c.Type) 是根据栏目类型不同来，来设置节点状态并，设置不同的图标。最后以Json类型返回。

修改一下上一节中添加栏目的视图ManageAdd.cshtml，将左侧列表替换成@Html.Action("ManagePartialTree", "Category")。替换后ManageAdd.cshtml

@model Ninesky.Models.Category

@{
  ViewBag.Title = "ManageAdd";
  Layout = "~/Views/Layout/_Manage.cshtml";
}



  

    

      添加栏目
    
    @using (Html.BeginForm())
    {
      @Html.ValidationSummary(true)

      

        
栏目
        

          

            

              @Html.LabelFor(model => model.Type)
            
            

              @Html.DropDownList("Type")
              @Html.ValidationMessageFor(model => model.Type)
              @Html.DisplayDescriptionFor(model => model.Type)
            
          
          

            

              @Html.LabelFor(model => model.Name)
            
            

              @Html.EditorFor(model => model.Name)
              @Html.ValidationMessageFor(model => model.Name)
              @Html.DisplayDescriptionFor(model => model.Name)
            
          
          

            

              @Html.LabelFor(model => model.ParentId)
            
            

              @Html.TextBox("ParentId", 0, new { @class = "easyui-combotree", data_options = "url:'" + Url.Action("JsonTreeParent", "Category") + "'" })
              @Html.ValidationMessageFor(model => model.ParentId)
              @Html.DisplayDescriptionFor(model => model.ParentId)
            
          
          

            

              @Html.LabelFor(model => model.Model)
            
            

              @Html.DropDownList("Model")
              @Html.ValidationMessageFor(model => model.Model)
              @Html.DisplayDescriptionFor(model => model.Model)
            
          
          

            

              @Html.LabelFor(model => model.CategoryView)
            
            

              @Html.EditorFor(model => model.CategoryView)
              @Html.ValidationMessageFor(model => model.CategoryView)
              @Html.DisplayDescriptionFor(model => model.CategoryView)
            
          
          

            

              @Html.LabelFor(model => model.ContentView)
            
            

              @Html.EditorFor(model => model.ContentView)
              @Html.ValidationMessageFor(model => model.ContentView)
              @Html.DisplayDescriptionFor(model => model.ContentView)
            
          
          

            

              @Html.LabelFor(model => model.Navigation)
            
            

              @Html.EditorFor(model => model.Navigation)
              @Html.ValidationMessageFor(model => model.Navigation)
              @Html.DisplayDescriptionFor(model => model.Navigation)
            
          
          

            

              @Html.LabelFor(model => model.Order)
            
            

              @Html.EditorFor(model => model.Order, new { value = 0 })
              @Html.ValidationMessageFor(model => model.Order)
              @Html.DisplayDescriptionFor(model => model.Order)
            
          
          

            

            
            

              
            
          
        
      
    }
  


  

    @Html.Action("ManagePartialTree", "Category")




@section Scripts {
  @Styles.Render("~/EasyUi/icon")
  @Scripts.Render("~/bundles/EasyUi")
  @Scripts.Render("~/bundles/jqueryval")
}

添加一个单页类型节点，在添加一个链接类型节点看一下

点一下栏目树前的小箭头能够显示和关闭下级栏目。但点栏目名称没什么反应，我希望的是点栏目名称能够跳转到栏目详细信息页面~/Category/ManageDetails/id，现在用js实现。打开ManagePartialTree.cshtml，在下面添加脚本。

完工。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。