Survey.StylesManager.applyTheme("modern");
function isNumber(n) { return n && !isNaN(parseFloat(n)) && isFinite(n); }
function surveyValidateQuestion(s, options) {
if (options.name == 'pricelimit') {
var leastamount = options.value['leastamount'];
var mostamount = options.value['mostamount'];
if(leastamount > mostamount) {
options.error = "The 'most amount' should be more 'less amount'.";
}
}
if (options.name == 'firstcomputer') {
if(options.value.indexOf('computer') < 0) {
options.error = "Please type the word 'computer'.";
}
}
}
var json = {
questions: [
{ type: "multipletext", name: "pricelimit", title: "What is the... ", isRequired: true, colCount: 2,
items: [{ name: "leastamount", title: "The least amount you have ever paid for a computer",
validators: [{ type: "numeric", minValue: 10, maxValue: 10000 }]
},
{ name: "mostamount", title: "The most amount you have ever paid for a computer",
validators: [{ type: "numeric", minValue: 10, maxValue: 10000 }]
}]
},
{
type: "comment", name: "firstcomputer", title: "Please tell us about your first computer", isRequired: true,
validators: [{type:"text", minLength:20}]
}
]
};
window.survey = new Survey.Model(json);
survey.onComplete.add(function(result) {
document.querySelector('#surveyResult').textContent =
"Result JSON:\n" + JSON.stringify(result.data, null, 3);
});
survey.onValidateQuestion.add(surveyValidateQuestion);
survey.render("surveyElement");
<!DOCTYPE html>
<html lang="en">
<head>
<title>Example of using onValidateQuestion event, Knockoutjs Survey Library Example</title>
<meta name="viewport" content="width=device-width" />
<script src="https://unpkg.com/knockout@3.5.1/build/output/knockout-latest.js"></script>
<script src="/DevBuilds/survey-knockout/survey.ko.min.js"></script>
<link href="/DevBuilds/survey-knockout/modern.css" type="text/css" rel="stylesheet" />
<link rel="stylesheet" href="./index.css">
</head>
<body>
<div id="surveyElement" style="display:inline-block;width:100%;">
</div>
<div id="surveyResult"></div>
<script type="text/javascript" src="./index.js"></script>
</body>
</html>