lib/Ext/dataview/DataView.js
function() {
        var me = this,
            container = me.container;

        if (!me.getStore()) {
            if (!me.hasLoadedStore && !me.getDeferEmptyText()) {
                me.showEmptyText();
            }
            return;
        }
        if (container) {
            me.fireAction('refresh', [me], 'doRefresh');
        }
    }
function() {
        var me = this,
            container = me.container;

        if (!me.getStore()) {
            if (!me.hasLoadedStore && !me.getDeferEmptyText()) {
                me.showEmptyText();
            }
            return;
        }
        if (container) {
            me.fireAction('refresh', [me], 'doRefresh');
        }
    }
Refreshes the view by reloading the data from the store and re-rendering the template.