Show/Hide choices in radiogroup/checkbox/dropdown

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

                        

    
        Survey.StylesManager.applyTheme("orange");
    


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);
    });


$("#surveyElement").Survey({ 
    model: survey 
});


                    
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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.