Survey.StylesManager.applyTheme("modern");
//assign call to onServerValidateQuestions callback
function surveyValidateQuestion(survey, options) {
//options.data contains the data for the current page.
var countryName = options.data["country"];
//If the question is empty then do nothing
if (!countryName) {
options.complete();
return;
}
//call the ajax method
$.ajax({url: "https://surveyjs.io/api/CountriesExample?name=" + countryName}).then(function (data) {
var found = data.length > 0;
//if the country is unknown, add the error
if (!found) options.errors["country"] = "The country name '" + countryName +"' is not in this list: https://surveyjs.io/api/CountriesExample";
//tell survey that we are done with the server validation
options.complete();
});
}
var json = {
"elements": [
{
"type": "text",
"name": "country",
"title": "Type a country:"
}
]
};
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
.onServerValidateQuestions
.add(surveyValidateQuestion);
survey.render("surveyElement");
<!DOCTYPE html>
<html lang="en">
<head>
<title>Server Validators, Knockoutjs Survey Library Example</title>
<meta name="viewport" content="width=device-width" />
<script src="https://unpkg.com/jquery"></script>
<script src="https://unpkg.com/knockout@3.5.1/build/output/knockout-latest.js"></script>
<script src="/DevBuilds/survey-core/survey.core.min.js"></script>
<script src="/DevBuilds/survey-core/survey.i18n.min.js"></script>
<script src="/DevBuilds/survey-knockout-ui/survey-knockout-ui.min.js"></script>
<link href="/DevBuilds/survey-core/modern.min.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>
