[DataContract]
public partial class Person {
    [DataMember]
    public virtual string LastName { get; set; }

    [DataMember]
    public virtual string FirstName { get; set; }
}

<?xml version="1.0" encoding="UTF-8"?>
<ContentPage
    xmlns="http://xamarin.com/schemas/2014/forms"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    x:Class="TheApp.APage"
    BackgroundColor="#03264A"
    Padding="0,0,0,0">
    <ContentPage.Content>
        <StackLayout
            BackgroundColor="Transparent">
            <ListView
                ItemsSource="{Binding PersonSearchCollection}">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <ViewCell>
                            <Label
                                Text="{Binding FirstName}" />
                        </ViewCell>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>
        </StackLayout>
    </ContentPage.Content>
</ContentPage>

namespace TheApp.ViewModels {
    public class APagePageViewModel : Helpers.BindableBase {

        private ObservableCollection<Person> _PersonSearchCollection = new RangeObservableCollection<Person>();

        public ObservableCollection<Person> PersonSearchCollection {
            get { return _PersonSearchCollection; }
            set { SetProperty(ref _PersonSearchCollection, value); }
        }
    }
}