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Javascript is a wonderful language for developing Windows 8 apps. As a untyped, dynamic language, Javascript is really flexible but sometimes if you are not careful you may leave some memory leaks in your code. But do not worry, Visual Studio includes a great tool called Javascript Memory Analysis in...

Following my previous article on “ Reading PDF and XPS on your Windows 8 application using WinRT ”, I would like to share with you the same example but with Javascript code. Many of you sent me a mail to get this code, so feel free to grab it here ( I would like to thank Mehdi Lahlou for his original...

As you may know, you can easily develop native applications for Windows 8 using JavaScript and WinJS . Among a lot of other things, WinJS allows you to create custom control in order to factorize your UI. Today, I would like to show you how to create this kind of control and to do so, please let me introduce...

A good-looking application must provide user with visual feedback. User must always know that an order (a click, a tap or whatever) is well received and understood by the application and animations are a great tool to do so. The new HTML 5 specification (to be honest, I should say “the new CSS...

How about being able to write a single code base for handling mouse, pen, touch in your web site that will work across all modern browsers? Here is a polyfill that will help you use Pointer Events and offer users a great experience on your site independently of the modern browser they are using. Back...

Hello, vous le savez sans doute déjà mais dés demain (Mardi 12/02), les TechDays 2013 vont ouvrir. J’animerai notamment les sessions suivantes : Développeurs, c’est vous le chef ! Microsoft aime les développeurs et cette année encore les développeurs seront rois lors la première plénière des TechDays...

    Les vidéos du dernier DevCamp : Comment optimiser la gestion de ses données sur Windows 8 et Windows Phone 8 sont disponibles sur la Chaine développeurs. Tour d'horizon des APIs de stockage et des stratégies à adopter en fonction des données par Benoit Laut – Ucaya : http://www.youtube...

I love JSON format. It is human readable and really fast to serialize to and deserialize from. However the major drawback of JSON is its size on disk. The following code will show you how to leverage System.IO.Compression (from .NET) to reduce the disk footprint of your JSON files. To do so, just create...

One issue I have with UrzaGatherer is related to the search. As you may know, I have a huge list of cards saved locally and my application allows the user to search specific cards using a part of their name. But browsing more than 20 000 cards using a text search can be really expensive mainly on low...

Parallax background is a really simple but extremely cool feature you can add to your application. You just need a div containing your background picture and a listview on top of it: < div id ="backgroundHolder"> </ div > < div class ="blocksList" id ="blocksList"...

Performance is always an important point in any project. And you must be well equipped to find potential issues in your code in order to provide the best experience for your user regardless of the device he uses. In my case, I had an issue with UrzaGatherer on low-end hardware: it took ages to open and...

Today I would like to talk about picture manipulation. Not the Direct2D way I used in my previous article but the pure JavaScript way.   The test case The test application is simple. On the left a picture to manipulate and on the right the updated result (a sepia tone effect is applied): The page...

When you want to display a message to inform your user, it is not always a good idea to use a modal MessageDialog which can be really annoying for the user. A better way can be to use a notification in order to display a non-intrusive dialog for the user: To do so here is the code with C#: public static...

Ce fut une série longue et poignante avec des rebondissements, de l'amour et beaucoup de Javascript :) Vous pourrez dorénavant trouver le code complet en version RTM juste là: http://www.catuhe.com/msdn/urza/urzagatherer-rtm.zip L’intégralité de la série est également disponible ici: Jour 0 : http:/...

Windows 8 introduced a real nice feature for textbox: the clear button. By clicking on this button, you can simply empty the textbox. But the question is: how can I handle the associated event? In fact, as usual, it is pretty simple (when you have the solution!). You just have to handle the oninput event...

With the availability of Windows 8 RTM , you can now download the RTM version of UrzaGatherer : http://www.catuhe.com/msdn/urza/urzagatherer-rtm.zip     If you want to learn more about how you can migrate a RP app, you can go there: http://www.microsoft.com/en-us/download/details.aspx?id=30706...

The Windows 8 Release Preview (RP) is now out and you can download it here: http://windows.microsoft.com/en-US/windows-8/release-preview It is then obvious that I must port my little UrzaGatherer for the Release Preview. I also take this opportunity to talk about some upgrades I added like the data binding...

La Release Preview (RP) de Windows 8 vient de sortir et vous pouvez la télécharger ici: http://windows.microsoft.com/en-US/windows-8/release-preview Du coup, il fallait bien que je porte mon petit UrzaGatherer vers la Release Preview avec comme objectif de le mettre sur le store au plus vite (afin de...

Nous sommes donc à deux jours du DevKings 2012! Vous pouvez encore vous inscrire sur le site: http://bemyapp.com/devkings/inscription.php   Au menu, des challenges , des massages , les Cooking Papas , du Red Bull et bien entendu, beaucoup de DEV ! 3 jours bien chargés que nous vous proposons d’organiser...

Voici donc la dernière partie de notre série. En fait, ce n’est pas tout à fait exact car je me permettrai de rajouter un post pour le portage vers la Release Preview (disponible ici: http://blogs.msdn.com/b/eternalcoding/archive/2012/06/08/comment-cuisiner-une-application-windows-8-avec-html-5-css3...

This is the final part of our series. Actually, I will post a last article when the Release Preview will be available to give you the updated version but you can consider this version as feature full. And as usual the complete solution is available here: http://www.catuhe.com/msdn/urza/day4.zip The complete...

Today the menu is about integrating your application into Windows 8 Metro. The first part of the integration was done with the snapped views and settings but it is now time to finish the job with: Search contract Share contract File picking contract Live tile Secondary tiles These five subjects are really...

Today, the chief proposes you to delight yourself with the following dishes: Internationalization Managing the activation of the offline mode Adding a flipView to the cards page Handling snapped views Supporting different form factors Supporting different cards sizes   As usual the complete solution...

The day 0 was dedicated to creating the home page and setting up the connection with data. Today, you will focus on creating the missing screens and adding offline support. The wireframe of the complete application is like this: The complete solution can be found there: http://www.catuhe.com/msdn/urza...

(La version finale est accessible ici: http://blogs.msdn.com/b/eternalcoding/archive/2012/06/08/comment-cuisiner-une-application-windows-8-avec-html-5-css3-et-javascript-en-une-semaine-jour-5.aspx ) Nous allons aujourd’hui nous pencher sur l’intégration de notre application au sein de Windows 8 Metro...