将数据加载到Ext.Data.TreeStore

Question

I am using ExtJs 4.1. We have one variable which contains data in JSON format. I want to load the value of that json into my Ext.Data.TreeStore. Usually store have loadData() which does the trick. But I do not see any such method for Ext.Data.TreeStore.

How can I load data into Ext.Data.TreeStore ?

Below is the definition of my store.

Ext.define('my.store.HStore', {
    extend: 'Ext.data.TreeStore',
    model: 'my.model.myModel',
    autoLoad: false,
    proxy: {
        type: 'memory',
        timeout: 90000,
        url: '/data/',
        reader: {
            type: 'json'
        }
    }
});

Answer 1

Possible duplicates:

How to insert new record ( model ) in TreePanel?

How to update data with TreeStore or TreeEditor component?

Answer

To load data into a TreeStore after the store has loaded, you update the root node as per the documentation here: http://docs.sencha.com/extjs/4.1.0/#!/api/Ext.data.TreeStore-method-setRootNode

Also relevant and may help you: Treepanel with nested data from JSON

If you wish to append data to a TreeStore, well that is a bit more complicated... You must first locate the node that you wish to append a child to (eg, store.getRootNode().findChildBy() ) and add the child by either appendChild or insertChild depending on what best suits your use case.

findChildBy documentation: http://docs.sencha.com/extjs/4.1.0/#!/api/Ext.data.NodeInterface-method-findChildBy

appendChild Documentation: http://docs.sencha.com/extjs/4.1.0/#!/api/Ext.data.NodeInterface-method-appendChild

insertChild documentation: http://docs.sencha.com/extjs/4.1.0/#!/api/Ext.data.NodeInterface-method-insertChild

PS: I have answered a few of your questions with no response, acceptance or comments. Please check the questions that you have asked, I'm more than happy to answer them however it is most beneficial to the entire community if you accept answers that you find helpful, or at least leave a comment if you need additional information. Thank you.