In this last part of the Picture Gallery blog series, we will discuss how the app handles errors and how RadControls for Windows Phone improved the development experience. In case you missed the previous two posts, they can be found here and here. Handling exceptions No application is complete without proper error handling. To be robust the application should handle the expected exceptions in a meaningful way or crash noisily when an unexpected error occurs. In the Picture Gallery app there are a few situations that should be expected.  The first and most important condition that we need to verify on app startup is whether...

In this second part of the picture gallery blog series we'll discuss how information is being passed between pages and how favorites are persisted to the phone's flash memory. If you haven't read the first part of this blog series, be sure to also check out the first part as well. Passing state When navigating between pages we need a mechanism to tell the new page what it will be visualizing. There are two ways to achieve this. One is to pass information between pages as parts of the query string in the page’s Uri. This is a rather limited approach and in...

We are happy (well, and proud :)) to announce the public availability of our Windows 8 UI Controls Release Candidate, which allows you to build Windows Store-Ready Apps at no cost. This is an important milestone for us as we are getting closer to the official release and I just can’t wait to share what we have baked for you in this new release. Strictly following our commitment to deliver the same functionality to XAML and HTML developers all the new goodies are available for both environments. HubTile A screen of the First Look example in our Demo Center application Enrich your Windows Store...

Software development, like many other things, is learned by studying theory and applying that theory to practice. While practicing however, it is also a good idea to learn existing software to reinforce the theory and also learn a trick or two that are not mentioned in the books.  With this in mind we decided to create a complete sample app for Windows Phone that will be free to download and study in order to help you with your Windows Phone development. It is a Picture Gallery app that demonstrates how to create a native Windows Phone client for Flickr or another...

All eyes are on the upcoming new Windows Phone device by Nokia in September as well as the release of Windows Phone 8, since they’ll open up new horizons for Windows Phone developers and their apps. Meanwhile, we follow with excitement the success of our customers’ apps. Our Showcase Gallery has more than 200 featured apps, many of which take top positions on the marketplace. So we decided to show them off. Check out which apps built with Telerik Windows Phone UI controls rule the marketplace.