lib/Ext/dataview/element/Container.js
function(from, to) {
        var me = this,
            items = me.getViewItems(),
            i = to - from,
            item;

        for (; i >= 0; i--) {
            item = items[from + i];
            Ext.get(item).destroy();
        }
        if (me.getViewItems().length == 0) {
            this.dataview.showEmptyText();
        }
    }
function(from, to) {
        var me = this,
            items = me.getViewItems(),
            i = to - from,
            item;

        for (; i >= 0; i--) {
            item = items[from + i];
            Ext.get(item).destroy();
        }
        if (me.getViewItems().length == 0) {
            this.dataview.showEmptyText();
        }
    }
Remove