API 使用 SurveyJS 调用和导航控件

API call and Navigation controls with SurveyJS

我正在使用 SurveyJS (https://surveyjs.io/) 制作一个几乎没有问题的简单网站。我可以使用 SurveyJS 提供的选项执行所有逻辑。

但是,我想要做的是:

无论我做什么,调查都会继续转到下一个问题,我想在这种情况下避免这种情况。

可用的三个回调:

// triggers before the current page goes away
survey.onCurrentPageChanging.add(function (sender, options) {
    if(survey.data.year === "1991") {
        // let's say I want to stop user from going forward at this point.
        // how can I do that?
    }
});


// triggers after the current page is gone and new page is about to appear
survey.onCurrentPageChanged.add(function (sender) {

});


// triggers right before the survey is about to finish - the last page
survey.onCompleting.add(function (sender, options) {

});

感谢您的宝贵时间。

survey.onCurrentPageChanging.add(function (sender, options) {
    if(survey.data.year === "1991") {
        // This prevents survey go to the next page
        options.allowChanging = false;
    }
});