MVC程序EasyUi之combotree读取json数据

分析tree_data.json 书写类 NewsClassJson

    /// <summary>
    /// 构建Json数据源的数据格式，属性有id,test,children,这里名字不能够更改否则不能够读取出来
    /// </summary>
    public class NewsClassJson
    {    /// <summary> 
        /// ID
        /// </summary>
        public int id { get; set; }
        /// <summary>
        /// 分类
        /// </summary>
        public string text { get; set; }
        
        /// 子类
        /// </summary>
        public List<NewsClassJson> children { get; set; }
        /// <summary>
        /// 父ID
        /// </summary>
        public int ParentId { get; set; }
        
    }

 

递归将NewsClassJson转化为适合jquery easy ui 控件tree ,combotree 的 json

       /// <summary>
        /// 递归
        /// </summary>
        /// <param name="list"></param>
        /// <returns></returns>
        //
        public List<NewsClassJson> LinqJsonTree(int parentId)
        {
            List<Ecms_News_Class> classlist = _DbSession.Ecms_News_ClassRepository.LoadEntities(item => item.ParentId == parentId).ToList();

            List<NewsClassJson> jsonData = new List<NewsClassJson>();
            classlist.ForEach(item =>
            {
                jsonData.Add(new NewsClassJson
                {
                    id = item.ClassId,
                    children = LinqJsonTree(item.ClassId),
                    ParentId = item.ParentId,
                    text = item.ClassName,

                });
            });


            return jsonData;
        }

 

前台调用

     //绑定类别下拉列表
        function BindClass() {
          
            $('#drpclass').combotree({
                url: '/Category/Bind',
                valueField: 'ClassId',
                textField: 'ClassName',
                multiple: true,
                editable: false,
                method: 'get',
                panelHeight: 'auto',
                checkbox: true,
                //required: true,
                //全部折叠
                onLoadSuccess: function (node, data) {
                    $('#drpclass').combotree('tree').tree("collapseAll");
                },
            });
            
        }

效果如图：

 

参考：别样的构建层级json字符串