/// <summary>
/// Initializes a new instance of the <see cref="VirtualizingCollection<T>"/> class.
/// </summary>
/// <param name="itemsProvider">The items provider.</param>
/// <param name="pageSize">Size of the page.</param>
/// <param name="pageTimeout">The page timeout.</param>
public VirtualizingCollection(IItemsProvider <T> itemsProvider, int pageSize, int pageTimeout)
{
_itemsProvider = itemsProvider;
_pageSize = pageSize;
_pageTimeout = pageTimeout;
ItemCount = ItemsProvider.FetchCount();
}
/// <summary>
/// Fetches the count of itmes from the IItemsProvider.
/// </summary>
/// <returns></returns>
protected int FetchCount()
{
return(ItemsProvider.FetchCount());
}
/// <summary>
/// Fetches the count of itmes from the IItemsProvider.
/// </summary>
/// <returns></returns>
protected async Task <long> FetchCount()
{
return(await ItemsProvider.FetchCount());
}