Do you know that, Windows Phone 7.1 (Mango) now supports local database? Yes, you can now use local database inside your Phone 7 device and use it to CRUD operations. You can now create a DataContext class from an existing database and use it as the entry point class to do DB operation.

In this chapter we will learn how to create a DataContext class for local SQL CE database. At the end of this tutorial our data context class will be ready for further DB operations.

Last two days we learned about Accelerometer class, it's base class and the accelerometer tool that comes with the Phone emulator. Hope those posts gave you some basic idea about it.

Here in this post, we will learn the use of this feature with a small demo application. We will also learn how to use the phone to write application that depends on the gravitational force applied to the sensors. This will give you better idea to create game application that will work when the user moves his phone device.