How to retrieve the Node of a treepanel?

Question

I am using ExtJS 4. I have created a tree panel as

var treeStore = Ext.create('Ext.data.TreeStore', {
        root: {
            text:'Reports',
            expanded: true,
            children: [
                {
                    id: 'operationalNode',
                    text: 'Operational',
                    children: [{ text: "report1", leaf: true }]
                },
                {
                    id: 'managementNode',
                    text: 'Management',
                    children: [{ text: "report2", leaf: true }]
                },
                {
                    id: 'inventoryNode',
                    text: 'Inventory'
                }
            ]
        }
    });
var treePanel = Ext.create('Ext.tree.TreePanel',{
    animate:true,
    layout:'fit',
    height:400,
    store:treeStore
    });

Now I want to retrieve the 'Operational' child as

Ext.getCmp('operationalNode');

But it returns null.

Why is it so?

How can I retrieve that Node?

Is there any way to retrieve the Node by its name?

Answer 1

nodes are actual models that have the node interface . so you should just use getNodeById from the treestore

var node = treeStore.getNodeById('operationalNode')

your data is in node.data just like in any other models