How to get view variable in controller

[venkateshwar]

How to get view variable in controller?
and even if I update or change some properties in the variable, the view should update.
How to do this?

I tried:

var someVar = Ext.getCmp('idHere');
//Selecting the third container from the collection of selected containers
var someNestedChild = someVar.query('container')[2];      
someNestedChild.el.dom.innerText = "I need to change this text";

But the above is giving undefined error whenever I add el, dom or body to someNestedChild variable.

[mitchellsimoens]

Why not use the update method on the someNestedChild component?

[venkateshwar]

Hi,

I am trying to avoid using ID's as much as I can. So, I just assigned ID to parent container. I know ID's are not suggested to use. I tried using ItemId's but everytime I am getting error 'undefined'.

[girish.arjunagi]

You can have a refs of the required view inside the controller.

refs : [            {
                ref : 'testView',
                selector : '[xtype="testView"]'
            }]

Get the view object with the getter getTestView() on controller object and query for the component with the itemId.