Introduction

In this article I describe how to create Windows Store Apps for closing a socket using JavaScript. If you don't close your socket, it will be closed for you when the application exits.

I assume you can create a simple Windows Store App using JavaScript; for more help visit Simple Windows Store Apps using JavaScript.

To start the creation of the app, add one JavaScript page by right-clicking on the js folder in the Solution Explorer and select "Add" > "New item" > "JavaScript Page" and then provide an appropriate name. In the same way, add a HTML page to your project.

closing-socket-in-wondows-store-app.jpg

Write the following code in the default.html:

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8" />

<title></title>

<link rel="stylesheet" href="//Microsoft.WinJS.1.0/css/ui-light.css" />

<script src="//Microsoft.WinJS.1.0/js/base.js"></script>

<script src="//Microsoft.WinJS.1.0/js/ui.js"></script>

<link rel="stylesheet" href="/css/default.css" />

<script src="/js/default.js"></script>

</head>

<body role="application" style="background-color: lightpink">

<center><div id="rootGrid">

<div id="content">

<h1 id="featureLabel"></h1>

<div id="contentHost"></div>

</div>

</div>

</center>

</body>

</html>

Write the following code in the default.js:

(function () {

"use strict";

var appTitle = "";

var pages = [

{ url: "page.html" }

];

function activated(eventObject) {

if (eventObject.detail.kind === Windows.ApplicationModel.Activation.ActivationKind.launch) {

eventObject.setPromise(WinJS.UI.processAll().then(function () {

var url = WinJS.Application.sessionState.lastUrl || pages[0].url;

return WinJS.Navigation.navigate(url);

}));

}

}

WinJS.Navigation.addEventListener("navigated", function (eventObject) {

var url = eventObject.detail.location;

var host = document.getElementById("contentHost");

host.winControl && host.winControl.unload && host.winControl.unload();

WinJS.Utilities.empty(host);

eventObject.detail.setPromise(WinJS.UI.Pages.render(url, host, eventObject.detail.state).then(function () {

WinJS.Application.sessionState.lastUrl = url;

}));

});

WinJS.Namespace.define("App", {

appTitle: appTitle,

pages: pages

});

WinJS.Application.addEventListener("activated", activated, false);

WinJS.Application.start();

})();


Write the following code in the page.html:

<!DOCTYPE html>

<html>

<head>

<script src="/js/script.js"></script>

</head>

<body>

<p>

<button id="buttonClose">Close sockets</button>

</p>

<div data-win-control="App.pageOutput">

<p id="statusBox"></p>

<p id="outputBox"></p>

</div>

</body>

</html>

Write the following code in the script.js:

(function () {

"use strict";

var page = WinJS.UI.Pages.define("page.html", {

ready: function (element, options) {

document.getElementById("buttonClose").addEventListener("click", closeListenerAndSockets, false);

}

});

function closeListenerAndSockets() {

socketsapp.close();

socketsapp.displayStatus("Client and server closed.");

}

})();


Output:

closing-socket-in-wondows-store-apps.jpg

Summary:
In this article I described how to create a Windows Store App for closing the socket using JavaScript. I hope this article has helped you to understand this topic. Please share it. If you know more about this, your feedback and constructive contributions are welcome.