如果在extjs中单击消息框的“是”或“否”按钮，如何从一个页面转换到另一个页面？

当我点击Messagebox的“是”按钮或“否”按钮时，我的页面将转到另一个页面

Ext.Msg.show({
 title:'Register',
 msg: 'You are successfully registered. Would you like to continue?',
 buttons: Ext.Msg.YESNOCANCEL 
 });

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如果您使用的是卡片布局，则只需使用setActiveitem（卡片）在卡片中导航，单击否我不使用卡片布局。

Ext.Msg.show({
    title: 'Register',
    msg: 'You are successfully registered. Would you like to continue?',
    buttons: Ext.Msg.YESNOCANCEL,
    callback: function(btn) {
        if (btn == 'yes') {
            window.location = 'newpage.html';
        }
    }
});