LoadingCollectionView.cs

using System.Windows.Input;
 
namespace NeuroAccessMaui.UI.Controls
{
    public class LoadingCollectionView : CollectionView
    {
        public static readonly BindableProperty LoadMoreCommandProperty =
             BindableProperty.Create(nameof(LoadMoreCommand), typeof(ICommand), typeof(LoadingCollectionView), default(ICommand));
 
        public ICommand LoadMoreCommand
        {
            get => (ICommand)this.GetValue(LoadMoreCommandProperty);
            set => this.SetValue(LoadMoreCommandProperty, value);
        }
 
        public static readonly BindableProperty ItemSelectedCommandProperty =
             BindableProperty.Create(nameof(ItemSelectedCommand), typeof(ICommand), typeof(LoadingCollectionView), default(ICommand));
 
        public ICommand ItemSelectedCommand
        {
            get => (ICommand)this.GetValue(ItemSelectedCommandProperty);
            set => this.SetValue(ItemSelectedCommandProperty, value);
        }
 
        public LoadingCollectionView()
        {
            this.RemainingItemsThresholdReached += this.LoadingCollectionView_ThresholdReached;
            this.SelectionChanged += this.LoadingCollectionView_SelectionChanged;
        }
 
        private void LoadingCollectionView_ThresholdReached(object? Sender, EventArgs e)
        {
            if (this.LoadMoreCommand?.CanExecute(null) ?? false)
                this.LoadMoreCommand.Execute(null);
        }
 
        private void LoadingCollectionView_SelectionChanged(object? Sender, SelectionChangedEventArgs e)
        {
            if (this.ItemSelectedCommand?.CanExecute(null) ?? false)
                this.ItemSelectedCommand.Execute(this.SelectedItem);
        }
 
    }
}