我有一个来自服务器端的JSON字符串:
{"success":"true","total":"6","list":
[{"id":"1","name":"folder1","parentid":"null","type":"0"},
{"id":"2","name":"r1","parentid":"1","type":"1"},
{"id":"3","name":"folder2","parentid":"1","type":"0"},
{"id":"4","name":"r2","parentid":"3","type":"1"},
{"id":"5","name":"r3","parentid":"null","type":"1"},
{"id":"6","name":"folder3","parentid":"null","type":"0"}]}
如何将其变成一棵树?谁能建议我如何获取列表中的元素(id,名称,parentid,类型)?
解决方法:
我使用以下结构:
模型
Ext.define('MyApp.model.MyTreeModel', {
extend: 'Ext.data.Model',
fields: [
'someStringIdentifier',
'children',
'dataForThisNode',
],
});
商店
Ext.define('MyApp.store.MyTreeStore', {
extend: 'Ext.data.TreeStore',
model: 'MyApp.model.MyTreeModel',
storeId: 'cubeDynamicStoreId',
autoLoad: false,
proxy: {
type: 'ajax',
api: {
read : '/myapp/rest/myquery',
},
reader: {
type: 'json',
root: 'children',
successProperty: 'success',
idProperty: 'id',
},
},
// bug in extjs4.1 autoLoad is ignored
// specifying "loaded: true" resolves the problem
root: {
expanded: true,
loaded: true,
},
});
样本JSON(使用http://jsonviewer.stack.hu/进行可视化)
使用leaf属性在任何节点上停止扩展
{"children":{"leaf":false,"someStringIdentifier":"Total","dataForThisNode":{},"children":[{"leaf":true,"someStringIdentifier":"data1","dataForThisNode":{},"children":[{"leaf":false,"someStringIdentifier":"2012","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2013","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2014","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2015","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2016","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2017","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2018","dataForThisNode":{},"children":null}]},{"leaf":true,"someStringIdentifier":"data2","dataForThisNode":{},"children":[{"leaf":false,"someStringIdentifier":"2012","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2013","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2014","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2015","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2016","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2017","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2018","dataForThisNode":{},"children":null}]}]},"success":true}
标签:javascript,extjs4-1 来源: https://codeday.me/bug/20191101/1980440.html
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