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Read original post at Alex Golesh's Blog

Windows Phone Mango adds few more task over initial Windows Phone (RTM) release. This post will cover new task (launchers and choosers) added to Windows Phone Mango Beta and Beta 2.

To introduce those features I’ve created sample application which looks very simple, yet have all those new tasks [...]

Read original post by Marcelo Ricardo de Oliveira at The Code Project

[...] The time for the new Silverlight Menu 4U has come. After browsing through the old code for some time (to evaluate if I could reuse it), I realized how monolithic the code was. The menu levels were made of stack panels instead of list boxes, and it would require painful efforts to make it flexible. Then I decided to rewrite it from scratch, and here are the results.

In this post, Amit Chatterjee explains how to add the Application Bar functionality to the Windows Phone 7 Chronometer application.

Source: Amit Chatterjee's Blog

I have been waiting to get back to the Windows Phone 7 Chronometer app that I have started to build and blogged about last week. Today’s World Cup Cricket final provides the perfect setting to sit in front of the television to watch the game and get some coding done as well!

My goal today is to add the Application Bar functionality to the application, to use a different timer construct, and also to clean up the code a bit.

In this blog post, you will find a sample that will help you to create an accelerometer for Windows Phone 7.

Source: The Visual Basic Team

An accelerometer is a device that measures the proper acceleration of the device. It is a sensor that measures acceleration forces caused by moving the sensor. In this application the accelerometer feature will allow you to determine the orientation and the motion of the phone.

Now I will demonstrate how to create an accelerometer for Windows Phone 7, using Visual Basic for Windows Phone Developer Tools. Sounds interesting? So let’s begin.

Read original post by Fons Sonnemans at Reflection IT

I'm currently in the process of converting some of my Windows Phone apps to the Windows 8 Consumer Preview. While doing so I discovered there is no MessageBox.Show() method in WinRT. The alternative is to use the new MessageDialog class. This means I have to rewrite a lot of code which I try to avoid. Therefore I came up with my own MessageBox helper class which mimics the behavior of the WP7 MessageBox. In this post I will demonstrate this, using the following sample application. [...]

In this blog post John Papa talks about getting the debugger to ignore validation exceptions.

I recently wrote an article that demonstrates how to use the DataForm and validate data entry in Silverlight using the DataAnnotations. One of the pet peeves I have with the validation is that it throws in exception in the setter of your public property. Putting my disagreements with that aside for a second, it causes a major inconvenience when debugging the application. For example, when running the application that uses the DataAnnotations and one of the conditions is violated, the debugger will catch the validation exception and break into the code. The desired behavior is that the debugger will not break into the code since I really just want to see the validation information on screen.

Microsoft announced today, that new Windows Phone 7 Series will support Silverlight as one of 2 development frameworks. Second development framework will be XNA (will blog about it later). So, what’s new for Silverlight developers there?

First, we have familiar tools: Windows Phone applications with Silverlight will be developed either with Visual Studio 2010, either with new “express” version called Visual Studio 2010 Express for Windows Phone. This “express” version will enable development with both frameworks (Silverlight and XNA).

Take a look at this great post of Jesse Liberty discussing Reactive Programming.

Source: Jesse Liberty's Blog

I’m increasingly convinced that Reactive Programming is going to be critical for Silverlight and Windows Phone developers. Reactive Programming is not new, and the Rx toolkit has been out for a while, but this is not a heavily covered topic, and the more I look the more I think it should must be.

Read the original article by Jevgeni Tšaikin at Dzone

In this lesson I will implement a Property Change Notification for a Windows Phone 7 application. This pattern is very useful for providing a communication between different user controls (parent-child) in Silverlight applications. For example, you can use that pattern if you have one parent control with many child controls and parent control needs to be notified if one of child control’s properties is changed.