How to change the selected date programmatically in the .NET MAUI Calendar (SfCalendar)?

<ContentPage.Behaviors>
    <local:CalendarBehavior />
</ContentPage.Behaviors>
<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="0.9*" />
        <RowDefinition Height="0.1*" />
    </Grid.RowDefinitions>
    <calendar:SfCalendar x:Name="calendar" />
    <Button Grid.Row="1"
            x:Name="button"
            VerticalOptions="Center"
            HorizontalOptions="Center"
            Text="Click here to change selected date" />
</Grid>

public class CalendarBehavior : Behavior<ContentPage>
{
    private SfCalendar calendar;
    private Button buttton;
 
    protected override void OnAttachedTo(ContentPage bindable)
    {
        base.OnAttachedTo(bindable);
 
        this.calendar = bindable.FindByName<SfCalendar>("calendar");
        this.buttton = bindable.FindByName<Button>("button");
        this.buttton.Clicked += Buttton_Clicked;
 
    }
 
    private void Buttton_Clicked(object sender, EventArgs e)
    {
        this.calendar.SelectedDate = this.calendar.DisplayDate.AddDays(5);
    }
 
    protected override void OnDetachingFrom(ContentPage bindable)
    {
        base.OnDetachingFrom(bindable);
        if (this.buttton != null)
        {
            this.buttton.Clicked -= Buttton_Clicked;
        }
 
        this.buttton = null;
        this.calendar = null;
    }
}