Show/Hide columns/rows in matrix question
Use columnsVisibleIf and rowsVisibleIf properties to show/hide columns and rows in matrix question
Survey.StylesManager.applyTheme("orange");
var json = {
questions: [
{
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(result) {
document.querySelector('#surveyResult').textContent =
"Result JSON:\n" + JSON.stringify(result.data, null, 3);
});
function onAngularComponentInit() {
Survey.SurveyNG.render("surveyElement", {
model: survey
});
}
var HelloApp =
ng.core
.Component({
selector: 'ng-app',
template: '<div id="surveyContainer" class="survey-container contentcontainer codecontainer"><div id="surveyElement"></div></div> '})
.Class({
constructor: function() {
},
ngOnInit: function() {
onAngularComponentInit();
}
});
document.addEventListener('DOMContentLoaded', function() {
ng.platformBrowserDynamic.bootstrap(HelloApp);
});
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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
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.