/// <summary>
/// Creates a new instance.
/// If <paramref name="sources"/> implements also <see cref="INotifyCollectionChanged"/>, than it binds <see cref="System.Windows.Input.ICommand.CanExecuteChanged"/> to its changes.
/// </summary>
/// <param name="sources">A collection to move items in.</param>
protected MoveCommand(IMoveCollection <T> sources)
{
Ensure.NotNull(sources, "sources");
this.Collection = sources;
if (sources is INotifyCollectionChanged notifyCollection)
{
notifyCollection.CollectionChanged += OnCollectionChanged;
}
}
/// <summary>
/// Creates a new instance.
/// </summary>
/// <param name="collection">A collection to move items in.</param>
public MoveDownCommand(IMoveCollection <T> collection)
: base(collection)
{
}