not able to add css class to survey question

I am trying to highlight the question if there is a particular condition is met. So, I have set the following css class for the question when the condition is met: survey.getQuestionByName(“questionName”).cssClasses.mainRoot = " bq-info";

But, the question does not get highlighted when the condition is met! Am I doing it a wrong way? Note that the css class “bq-info” is legit.

Are you requesting a feature, reporting a bug or asking a question?

asking a question

What is the current behavior?

The question does not get highlighted when the condition is met! Am I doing it a wrong way? Note that the css class “bq-info” is legit.

What is the expected behavior?

The question’s css class should be set to whatever class is provided by the user.

How would you reproduce the current behavior (if this is a bug)?

Provide the test code and the tested page URL (if applicable)

Tested page URL:

Test code

your_code_here

Specify your

• browser: chrome
• browser version: 84+
• surveyjs platform (angular or react or jquery or knockout or vue): jquery
• surveyjs version: 1.8.6

[andrewtelnov]

@till-tomorrow Sorry, did not get the question at first. Here is the working example.

Thank you, Andrew

[till-tomorrow]

I am afraid, this does not seem to work. Am I doing something wrongly?

survey.onUpdateQuestionCssClasses.add(function(survey, options) {
    var classes = options.cssClasses;
    options.question.hasError = "";
    if(options.question.description.includes("some text"))
        classes.title = "sq-title";
]);