extjs - Sencha Touch insert item into TreeStore / NestedList -

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is there way insert new record treestore?

treestore data source of nestedlist, @ end point need add new item nestedlist

here example https://fiddle.sencha.com/#fiddle/4f4

var datastore; var dataobj;  ext.application({     name: 'testapp',      launch: function() {         // data         dataobj = {             items: [                 {                     field1: '1',                     items: [{                         field1: '1.1',                         items: [{                             field1: '1.1.1 last',                             leaf: true                         }, {                             field1: '1.1.2 last',                             leaf: true                         }]                     }, {                         field1: '1.2 last',                         leaf: true                     }]                 },                  {                     field1: '2',                     items: [{                         field1: '2.1 last',                         leaf: true                     }, {                         field1: '2.2 last',                         leaf: true                     }]                 }             ]         }          // model         ext.define('datamodel', {             extend: 'ext.data.model',             config: {                 fields: [                     {name: 'field1', type: 'string'},                 ]             }         });          // treestore         datastore = ext.create("ext.data.treestore", {             storeid: "usersstore",             model: "datamodel",             defaultrootproperty: 'items',             data : dataobj         });          // nestedlist , display         ext.create('ext.nestedlist', {             fullscreen: true,             displayfield: 'field1',             store: datastore         });     }  });

similar threads: sencha touch 2: insert treestore/nestedlist

thanks!

store binded nestedlist, add new data store.

    dataobj.items.push({         field1: '3',         items: [{             field1: '3.1 last',                 leaf: true             }, {                 field1: '3.2 last',                 leaf: true         }]                         });     datastore.setdata(dataobj);

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