e.getTarget() doesn't exist in ExtJS 4.0b1?

[eja40]

When we have a grid with an icon button (e.g. delete icon) in the right hand column we would trap the cellclick and test for the presence of <div class="controlBtn"> using e.getTarget.

Now with ExtJS 4.0b1 we receive "e.getTarget is not a function"

I cannot find any reference to this in the docs either.

How do I achieve what is described in the Grid FAQ (5.5) "How to add a column with tools for each record?" http://www.sencha.com/learn/Ext_FAQ_Grid

test = new Ext.grid.GridPanel({
        store: store,
        viewConfig: {
            stripeRows: true,
            emptyText:'No rows to display',
            listeners: {
                cellClick: function(view, record, item, index, e){
                    console.log(e.getTarget('.controlBtn')); /// e.getTarget is not a function
                },
            }
        }
}

[mitchellsimoens]

It's in the docs so it should be working.

[jay@moduscreate.com]

is e an Ext.EventObject?