In the following article I will show how to work with ContactPicker in Universal Windows Apps.
Here we are using ContactPicker to get the information of the contact.
Step 1: Open a blank app and add a Button and a TextBlock either from the toolbox or by copying the following XAML code into your grid.
Step 2: Add the following namespaces to your project which is needed in further C# code.
Step 3: Copy and paste the following code to the cs page which will be called on button click event and will open the contact list.
Step 4: Run your application and test yourself.
Step into Windows 10 UWP