Get value of a listitem subview textfield

I know to get this done within an eventlistener e.g. on click with textField = e.source.children[1];, but not outside / directly.

My Setup

Template

[
    {
        type: 'Ti.UI.ImageView',  // Use an image view
        allowsSelection: false,
        properties: {             
            left: '10dp',
            width: '16dp',
            height: '16dp',
            image: '/images/compose.png',
        }
    },
    {
        type: 'Ti.UI.TextField',
        bindId: column.fieldName,
        autocapitalization : Titanium.UI.TEXT_AUTOCAPITALIZATION_ALL,
,
 
        properties: {
            width: '70%',
            height: OS_IOS ? '100%' : null,
            left:'32dp',
            zIndex:0,
            hintText: column.hintText,
            paddingLeft: 10,
            font : { fontSize : 20 },
            clearButtonMode:Titanium.UI.INPUT_BUTTONMODE_ALWAYS,
            autoCapitalization: Titanium.UI.TEXT_AUTOCAPITALIZATION_ALL,
            autocorrect : false,
        }
    },
    {
        type: 'Ti.UI.Button',
        properties: {
            right: '10dp',
            //width: '16dp',
            //height: '16dp',
            image: '/images/download.png',
            zIndex:30,
        },
    },
]