Show/Hide columns/rows in matrix question


                        
        
            Survey.StylesManager.applyTheme("modern");
        



                
                    var json = {
  "elements": [
    {
      "type": "checkbox",
      "name": "car",
      "title": "What cars have you being drived?",
      "isRequired": true,
      "colCount": 3,
      "choices": [
        "Audi",
        "BMW",
        "Citroen",
        "Ford",
        "Mercedes-Benz",
        "Nissan",
        "Peugeot",
        "Tesla",
        "Toyota",
        "Vauxhall",
        "Volkswagen"
      ]
    },
    {
      "type": "checkbox",
      "name": "categories",
      "title": "What categories could you rate?",
      "isRequired": true,
      "colCount": 3,
      "choices": [
        "Style",
        "Performance",
        "Comfort",
        "Quality",
        "Safety",
        "Features"
      ]
    },
    {
      "type": "matrix",
      "name": "carRating",
      "isRequired": true,
      "visibleIf": "{car.length} > 0 and {categories.length} > 0",
      "title": "Please select best car for each category?",
      "rowsVisibleIf": "{categories} contains {item}",
      "columnsVisibleIf": "{car} contains {item}",
      "rows": [
        "Style",
        "Performance",
        "Comfort",
        "Quality",
        "Safety",
        "Features"
      ],
      "columns": [
        "Ford",
        "Vauxhall",
        "Volkswagen",
        "Nissan",
        "Audi",
        "Mercedes-Benz",
        "BMW",
        "Peugeot",
        "Toyota",
        "Citroen",
        "Tesla"
      ]
    }
  ]
};

                    window.survey = new Survey.Model(json);
                
        
            survey.onComplete.add(function(sender) {
            document.querySelector('#surveyResult').textContent =
            "Result JSON:\n" + JSON.stringify(sender.data, null, 3);
            });
        
survey.data = { 'car': ['Ford','BMW','Mercedes-Benz'],'categories': ['Style', 'Performance']};
        
            var app = new Vue({
            el: '#surveyElement',
            data:
            {
            survey: survey
            }
            });

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    <title>Show/Hide columns/rows in matrix question, Vue Survey Library Example</title>
    
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                <survey :survey='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.

Show/Hide columns/rows in matrix question

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