Programming Reactive Extensions and LINQ

Example: Creating Observables

Let's start by creating a reusable application to demonstrate a number of different operators.

Start by creating a new Windows Phone Application. Once it is open, add references to Microsoft.Phone.Reactive and System.Observable.

Add just one control to the XAML file, a ListBox with HorizontalAlignment and VerticalAlignment, both set to stretch and with the name Messages. You will use this to display the output for each iteration of this program.

  <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">    <ListBox       Name="Messages"       HorizontalAlignment="Stretch"       VerticalAlignment="Stretch"       Margin="10" /> </Grid>

Next, add using statements for System and Microsoft.Phone.Reactive, as follows: ...