How to do it...

Follow these steps to add the basic controls to the main window:

1. Open the MainWindow.xaml page.
2. Inside the default Grid panel, add the tag <Calendar /> to create the basic calendar control in the application UI.
3. To retrieve the date selected by the user, register the SelectedDatesChanged event to it, as shown in the following code snippet:

<Grid Margin="10"> 
    <Calendar SelectedDatesChanged="OnSelectedDateChanged"  
      HorizontalAlignment="Left" /> 
</Grid> 

4. Add the associated event handler (OnSelectedDateChanged) in the code-behind class (MainWindow.xaml.cs), as shown in the following code, to retrieve the selected date and show it in a message box:

private void OnSelectedDateChanged(object sender,  
 SelectionChangedEventArgs e) 
{ 
    MessageBox.Show("You selected: " +  
      ((DateTime)e.AddedItems[0]).ToString("dd-MMM-yyyy")); 
} 

5. Let's run the application. You will see the...