FoxTube/FoxTube/Controls/ItemsGrid.xaml.cs

using FoxTube.Controls.Cards;
using FoxTube.Core.Helpers;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace FoxTube.Controls
{
    public sealed partial class ItemsGrid : UserControl
    {
        UIElementCollection Items => grid.Children;
        public int ItemsCount => Items.Count;

        public ItemsGrid() =>
            InitializeComponent();

        public void Add(UIElement item)
        {
            empty.Opacity = 0;

            if (!StoreInterop.AdsDisabled && ItemsCount % 5 == 0 && ItemsCount > 0)
                Items.Add(new AdvertCard());
            Items.Add(item);
        }

        public void Clear()
        {
            Items.Clear();
            empty.Opacity = 1;
        }
    }
}