流行的 javascript 树视图（jstree、dynatree...）可以设置为从邻接模型读取数据吗？

发布于 2024-12-28 15:15:08 字数 448 浏览 1 评论 0原文

流行的 javascript 树视图（jstree、dynatree...）可以设置为从邻接模型读取数据吗？假设我有一个包含 classId、ClassName、ClassType、ParentClassId 的表，我如何获取动态树的数据？考虑到 dyna 树期望的 json 应该类似于下面的内容

        {title: "Class1"},
        {title: "Class2", isFolder: true,
            children: [
                {title: "Class4"},
                {title: "Class5"}
            ]
        },
        {title: "Class3"}

我正在使用后端带有 linq to sql 的 asp.net asmx Web 服务

原文

can the popular javascript tree views (jstree, dynatree...) be setup to read data from an adjacency model?
say I have a table with classId, ClassName,ClassType,ParentClassId how can i fetch data for say the dynatree? considering the json expected by dyna tree should something like below

        {title: "Class1"},
        {title: "Class2", isFolder: true,
            children: [
                {title: "Class4"},
                {title: "Class5"}
            ]
        },
        {title: "Class3"}

I am using an asp.net asmx web service with linq to sql at the backend

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紙鸢 2025-01-04 15:15:08

要按需加载节点，您唯一要做的就是向要按需加载子节点的节点添加“state”：“close”。

您可以将所有必要的属性 classId、ClassName、ClassType、ParentClassId 附加到节点，这样您就可以通过 ajax 传递它。
你的代码

"json_data": {
      //elements to be displayed on the first load
      //everything with state = closed will be populated via ajax. 
      //         Note the ajax arguments

    "data": [{"data":'Class 1',
              "attr":{"id":'kit1',
                      "ClassName":"ClassName",
                      "classId":"classId"},
              "state" : "closed"},
             {"data":'Class 2',
              "attr":{"id":'kit2',
                      "ClassName":"ClassName",
                      "classId":"classId"},
              "state" : "closed"}
            ],
    "ajax" : {
        url : "http://localhost/introspection/introspection/product",
        data : function(n) {
                 return {
                   "classId":$.trim(n.attr('classId')),
                   "ClassName":$.trim(n.attr('ClassName')),
                 }
               }
    }
 }

The only thing you have to do to have nodes loaded on demand is to add "state" : "closed" to the nodes whose child nodes are going to be loaded on demand.

You can have all your necessary attributes classId, ClassName,ClassType,ParentClassId attached to the node so then you can pass it through via ajax.
ur code

"json_data": {
      //elements to be displayed on the first load
      //everything with state = closed will be populated via ajax. 
      //         Note the ajax arguments

    "data": [{"data":'Class 1',
              "attr":{"id":'kit1',
                      "ClassName":"ClassName",
                      "classId":"classId"},
              "state" : "closed"},
             {"data":'Class 2',
              "attr":{"id":'kit2',
                      "ClassName":"ClassName",
                      "classId":"classId"},
              "state" : "closed"}
            ],
    "ajax" : {
        url : "http://localhost/introspection/introspection/product",
        data : function(n) {
                 return {
                   "classId":$.trim(n.attr('classId')),
                   "ClassName":$.trim(n.attr('ClassName')),
                 }
               }
    }
 }

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