Ways to get items in extjs?
Application.TypesForm = Ext.extend(Ext.form.FormPanel, {
    initComponent : function() {

        Ext.apply(this, {
        ...
            items : [
                {
                    xtype    : 'VerticalsComboBox',
                }
                ...

form = Ext.getCmp('TypesForm');
   alert(form.getForm().findField('status').getValue());