<Entry Text="{Binding UserName, Mode=TwoWay}" />
<Label Text="{Binding Title, Mode=OneTime}" />

<Label Text="{Binding Address.City}" />
<Label Text="{Binding Items[0].Name}" />

<ContentPage xmlns:vm="clr-namespace:MyApp.ViewModels"
             x:DataType="vm:MainViewModel">
    <ContentPage.BindingContext>
        <vm:MainViewModel />
    </ContentPage.BindingContext>
</ContentPage>

<ContentPage x:DataType="vm:MainViewModel">
    <Label Text="{Binding UserName}" />
</ContentPage>

<CollectionView ItemsSource="{Binding People}">
    <CollectionView.ItemTemplate>
        <DataTemplate x:DataType="model:Person">
            <Label Text="{Binding FullName}" />
        </DataTemplate>
    </CollectionView.ItemTemplate>
</CollectionView>

// Fully AOT-safe, no reflection
label.SetBinding(Label.TextProperty,
    static (PersonViewModel vm) => vm.FullName);

// With mode and converter
entry.SetBinding(Entry.TextProperty,
    static (PersonViewModel vm) => vm.Age,
    mode: BindingMode.TwoWay,
    converter: new IntToStringConverter());

public class IntToBoolConverter : IValueConverter
{
    public object? Convert(object? value, Type targetType,
        object? parameter, CultureInfo culture)
        => value is int i && i != 0;

    public object? ConvertBack(object? value, Type targetType,
        object? parameter, CultureInfo culture)
        => value is true ? 1 : 0;
}

<ContentPage.Resources>
    <local:IntToBoolConverter x:Key="IntToBool" />
</ContentPage.Resources>

<Switch IsToggled="{Binding Count, Converter={StaticResource IntToBool}}" />

<Label Text="{Binding Score, Converter={StaticResource ThresholdConverter},
              ConverterParameter=50}" />

int threshold = int.Parse((string)parameter);

<Label Text="{Binding Price, StringFormat='Total: {0:C2}'}" />
<Label Text="{Binding DueDate, StringFormat='{0:MMM dd, yyyy}'}" />

<Label>
    <Label.Text>
        <MultiBinding Converter="{StaticResource FullNameConverter}"
                      StringFormat="{}{0}">
            <Binding Path="FirstName" />
            <Binding Path="LastName" />
        </MultiBinding>
    </Label.Text>
</Label>

public class FullNameConverter : IMultiValueConverter
{
    public object Convert(object[] values, Type targetType,
        object parameter, CultureInfo culture)
    {
        if (values.Length == 2 && values[0] is string first && values[1] is string last)
            return $"{first} {last}";
        return string.Empty;
    }

    public object[] ConvertBack(object value, Type[] targetTypes,
        object parameter, CultureInfo culture)
        => throw new NotSupportedException();
}

<!-- Square box: Height = Width -->
<BoxView WidthRequest="100"
         HeightRequest="{Binding Source={RelativeSource Self}, Path=WidthRequest}" />

<Label Text="{Binding MiddleName, TargetNullValue='(none)',
              FallbackValue='unavailable'}" />
<Image Source="{Binding AvatarUrl, TargetNullValue='default_avatar.png'}" />

// Safe from a background thread
await Task.Run(() =>
{
    Items = LoadData();          // Raises PropertyChanged
    OnPropertyChanged(nameof(Items));
});