saas-platform/frontend/saas-web/app/view/money/payBalance/FormPanelModel.js

Ext.define('saas.view.money.payBalance.FormPanelModel', {
    extend: 'saas.view.core.form.FormPanelModel',
    alias: 'viewmodel.money-paybalance-formpanel',

    formulas: {
        pb_vendname_change: {
            bind: '{pb_vendid}',
            get: function(v) {
                return v;
            }
        }
    }

});