Incremental Loading of Data using Windows Azure Mobile Services

When your data is in the cloud you should only download information that a user is actually looking at.  In the case where you have thousands of items and you want to give the ability to scroll through them you should only fetch the data that the user will be viewing (yes, I know that…

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Using WCF classes to consume a WebService using Plain Old XML (POX) in a Windows Store app

You can leverage WCF functionality from a Windows Store app to call a WebService using Plain Old XML (POX) style of messaging. This blog and the sample included below documents the steps a Windows Store app should perform to consume such a service. The sample is based off the topic of Interoperability with POX applications…


Mixed Media – Audio & Video – Windows Store vs. Windows Phone 8

As everyone knows, with the release of Windows 8 and Windows Phone 8 we have brought the two platforms closer together than ever before. The keyword here is “closer”. There are still some fairly major implementation and terminology differences between the two platforms particularly when working with digital audio and video. Hopefully this article will…


Where did all my gestures go?

A common problem we’ve seen from customers is how to handle pointer input and manipulations on elements inside of collection controls such as ListViews, GridViews, and FlipViews. The app can get the PointerPressed event on items inside the View, but after that the pointer events disappear and the app cannot convert them into gestures or…


Registration of the app failed. Another user has already installed a packaged version of this app. An unpackaged version cannot replace this…

Deployment of a development version of your Windows Store app package through Visual Studio 2012 can sometimes lead to an error that looks like this: Registration of the app failed. Another user has already installed a packaged version of this app. An unpackaged version cannot replace this. The conflicting package is <<YourApp package name>> and…


Looking back to understand the future: OpenFileDialog vs. FileOpenPicker

Most of us are familiar with the standard .NET OpenFileDialog object. With the introduction of Windows 8 Store apps the OpenFileDialog has gotten a facelift, a simplified API and yet somehow it’s still not quite the same. The new FileOpenPicker (or Picker) has been the subject of much mystery and confusion on the MSDN forums….


Why does the XAML designer report that my custom elements have not been built?

Consider a scenario where you’ve been working on developing business logic for your Windows Store app and you switch to the Visual Studio designer to check a UI element. You may notice the below message in the designer view of some XAML pages: The Design view cannot display correctly because some custom elements have not yet been built….

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