Question

I’m trying to load the text of a label on the beforerender event. So I attached the beforender event… as below

{
    xtype: 'label',
    text: 'VOID',
    listeners: {
        beforerender: {
        fn: me.onLabelBeforeRender,
        scope: me
    }
},

Ext.Ajax.request({
    url: '/who',
    method: 'GET',
    params: {
        id: 1
    },
    success: function(response){
        var text = Ext.decode(response.responseText);
        alert(text);
        // process server response here
    }
});

And now I would like to change the label from VOID into the response value of /who However I fail to see how I can access that label in a decent way. Of course I can add an id use getcmp however that seems so clumsy, or is that the way to go?

Answer 1

Actually, as far as performance goes, an id + Ext.getCmp() is the most efficient option. See this question for more.

It will definitely be faster than adding a listener, for which you get quite a healthy call stack.