How to do it...

We will create a simple application that will count odd and even numbers in a numeric range. This will be done on a non-UI thread and once the result is available we will update the UI. Follow these steps:

1. From Solution Explorer, open the MainWindow.xaml file.
2. Replace the existing Grid with the following simple user interface to provide the numeric range, and a button to calculate and display the result:

<Grid Margin="10"> 
    <Grid.RowDefinitions> 
        <RowDefinition Height="Auto"/> 
        <RowDefinition Height="Auto"/> 
        <RowDefinition Height="Auto"/> 
    </Grid.RowDefinitions> 
    <StackPanel Orientation="Horizontal" 
                Grid.Row="0" 
                Margin="4"> 
        <TextBlock Text="From:" 
                   Margin="4"/> 
        <TextBox x:Name="fromValue" 
                 Text=...