ApplePage.xaml

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml">
  
    <views:ItemDetailsListView ItemTemplate="{StaticResource DataFieldCellTemplateSelector}" />
  
</ContentPage>

ItemDetailsListView.cs

    public partial class ItemDetailsListView : ContentView
    {
        public ItemDetailsListView()
        {
            InitializeComponent();
        }

        public static readonly BindableProperty ItemTemplateProperty = BindableProperty.Create("ItemTemplate", typeof(DataTemplate), typeof(ItemDetailsListView));
        public DataTemplate ItemTemplate
        {
            get
            {
                return (DataTemplate)base.GetValue(ItemTemplateProperty);
            }

            private set
            {
                base.SetValue(ItemTemplateProperty, value);
            }
        }
    }

ItemDetailsListView.xaml

<ContentView xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:behavior="clr-namespace:MyApp.Core.Behavior;assembly=MyApp.Core"
             x:Class="MyApp.Core.Views.ItemDetailsListView" x:Name="MyItemDetailsListView">

    <ListView ItemTemplate="{Binding Source={x:Reference MyItemDetailsListView}, Path=ItemTemplate}" />

</ContentView>