Conditional visibility


                        
        
            Survey.StylesManager.applyTheme("defaultV2");
        



                
                    var json = {
  "showQuestionNumbers": "off",
  "elements": [
    {
      "type": "radiogroup",
      "name": "haveKids",
      "title": "Do you have a kid(s)?",
      "isRequired": true,
      "choices": [ "Yes", "No" ],
      "colCount": 0
    },
    {
      "type": "dropdown",
      "name": "kids",
      "title": "How many kids do you have",
      "visibleIf": "{haveKids}='Yes'",
      "isRequired": true,
      "choices": [ 1, 2, 3, 4, 5 ]
    },
    {
      "type": "dropdown",
      "name": "kid1Age",
      "title": "The first kid age:",
      "visibleIf": "{haveKids}='Yes' and {kids} >= 1",
      "isRequired": true,
      "choicesMax": 18
    },
    {
      "type": "dropdown",
      "name": "kid2Age",
      "title": "The second kid age:",
      "visibleIf": "{haveKids}='Yes' and {kids} >= 2",
      "isRequired": true,
      "startWithNewLine": false,
      "choicesMax": 18
    },
    {
      "type": "dropdown",
      "name": "kid3Age",
      "title": "The third kid age:",
      "visibleIf": "{haveKids}='Yes' and {kids} >= 3",
      "isRequired": true,
      "choicesMax": 18
    },
    {
      "type": "dropdown",
      "name": "kid4Age",
      "title": "The fourth kid age:",
      "visibleIf": "{haveKids}='Yes' and {kids} >= 4",
      "isRequired": true,
      "startWithNewLine": false,
      "choicesMax": 18
    },
    {
      "type": "dropdown",
      "name": "kid5Age",
      "title": "The fifth kid age:",
      "visibleIf": "{haveKids}='Yes' and {kids} >= 5",
      "isRequired": true,
      "choicesMax": 18
    }
  ]
};

                    window.survey = new Survey.Model(json);
                
        
            survey.onComplete.add(function(sender) {
            document.querySelector('#surveyResult').textContent =
            "Result JSON:\n" + JSON.stringify(sender.data, null, 3);
            });
        
        
            var app = new Vue({
            el: '#surveyElement',
            data:
            {
            survey: survey
            }
            });
        

                    
<!DOCTYPE html>
<html lang="en">
<head>
    <title>Conditional visibility, Vue Survey Library Example</title>
    
<meta name="viewport" content="width=device-width" />
    <script src="https://unpkg.com/vue@2.6.14/dist/vue.js"></script>
    <script src="/DevBuilds/survey-core/survey.core.min.js"></script>
    <script src="/DevBuilds/survey-core/survey.i18n.min.js"></script>
    <script src="/DevBuilds/survey-vue-ui/survey-vue-ui.min.js"></script>
    <link href="/DevBuilds/survey-core/defaultV2.min.css" type="text/css" rel="stylesheet" />
    <link rel="stylesheet" href="./index.css">

</head>
<body style="margin: 0">
    
            <div id="surveyElement" style="display:inline-block;width:100%;">
                <survey :survey='survey' />
            </div>
    <div id="surveyResult"></div>

<script type="text/javascript" src="./index.js"></script>

</body>
</html>
Settings

clearInvisibleValues


Clear values for invsible questions on survey complete, default value is "onComplete".
  • none - do no clear values for invisible questions.
  • onComplete - clear values for invisible questions survey completing. Before sending data to the server.
  • onHidden - immediately clear value after a question becomes invisible.
survey.clearInvisibleValues = yourValue;

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