public void AddRange(IEnumerable<T> collection, bool sendResetAction = false)
{
	if (collection == null)
		throw new ArgumentNullException(nameof(collection) + " is null!");

		if (!collection.Any())
			return;

		CheckReentrancy();

		var tempList = new List<T>();

		foreach (var item in collection)
		{
			tempList.Add(item);
			Items.Add(item);
		}

		if (sendResetAction)
			InvokeCollectionModificationEvent(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
		else
			InvokeCollectionModificationEvent(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, tempList));
	}

	
public async void ReloadYards()
	{
		var yards = new List<YardHeader>();

		await Task.Delay(100);

		for (int i = 0; i < 15; i++)
		{
			yards.Add(new YardHeader(Guid.Empty, i.ToString(), null));
		}

		_yardHeaders.AddRange(yards);		
}