Use choicesVisibleIf property to show/hide choices items in radio group, checkbox and dropdown questions, Vue Survey Library Example

Show/Hide choices in radiogroup/checkbox/dropdown

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            Survey.StylesManager.applyTheme("modern");
        


            
                var json = { questions: [
    { type: "checkbox", name: "car", title: "What cars have you being drived?", isRequired: true,
      colCount: 4, "choicesOrder": "asc",
      choices: ["Ford", "Vauxhall", "Volkswagen", "Nissan", "Audi", "Mercedes-Benz", "BMW", "Peugeot", "Toyota", "Citroen", "Tesla"] },
  {
    "type": "radiogroup", "name": "bestcar", isRequired: true, "choicesOrder": "asc",
    "title": "What car did you enjoy the most?",
    "visibleIf":  "{car} notempty",
    "choicesVisibleIf": "{car} contains {item}",
    choices: [ "Ford", "Vauxhall", "Volkswagen", "Nissan", "Audi", "Mercedes-Benz", "BMW", "Peugeot", "Toyota", "Citroen", "Tesla" ]
  },
  {
    "type": "radiogroup", "name": "secondcar", isRequired: true, "choicesOrder": "asc",
    "visibleIf":  "{car.length} > 1",
    "title": "What car is your second choice?",
    "choicesVisibleIf": "{car} contains {item} and {item}!={bestcar}",
    choices: [ "Ford", "Vauxhall", "Volkswagen", "Nissan", "Audi", "Mercedes-Benz", "BMW", "Peugeot", "Toyota", "Citroen", "Tesla" ]
  }
]};

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

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Use choicesVisibleIf property to show/hide choices items in radio group, checkbox and dropdown questions, Vue Survey Library Example</title>

<meta name="viewport" content="width=device-width" />
    <script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://surveyjs.azureedge.net/1.7.17/survey.vue.js"></script>
<link href="https://surveyjs.azureedge.net/1.7.17/modern.css" type="text/css" rel="stylesheet" />
    <link rel="stylesheet" href="./index.css">

</head>
<body>
    
            <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>

You may use expression properties:

choicesVisibleIf in radio group, checkbox and dropdown questions.
columnsVisibleIf and rowsVisibleIf in matrix question
and rowsVisibleIf in matrix dropdown question

to hide/show choices items, columns and rows in these questions. The expression runs against each choices item. To get the current item value, please use {item} variable in your expression.

The following expression below means: the item is shown if, the same value is checked in the {car} question and it is not selected in the {bestcar} question.

{car} contains {item} and {item}!= {bestcar}

Every ItemValue object has its own visibleIf property. You may override the top level choicesVisibleIf property and define visibleIf expression for an individual choice item.

Show/Hide choices in radiogroup/checkbox/dropdown

Use choicesVisibleIf property to show/hide choices items in radio group, checkbox and dropdown questions

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