/// <summary>
/// Creates an instance with its own implementation of <see cref="ICommand.CanExecuteChanged"/>.
/// </summary>
protected AsyncCommandBase()
{
_canExecuteChanged = new WeakCanExecuteChanged(this);
}
/// <summary>
/// Creates a new explicit implementation of <c>ICommand.CanExecuteChanged</c>.
/// </summary>
/// <param name="sender">The sender of the <c>ICommand.CanExecuteChanged</c> event.</param>
public ExplicitCanExecute(object sender)
{
_canExecuteChanged = new WeakCanExecuteChanged(sender);
_threadAffinity = ThreadAffinity.BindToCurrentThread();
}
/// <summary>
/// Creates a new cancel command.
/// </summary>
public CancelCommand()
{
_cts = new CancellationTokenSource();
_cts.Cancel();
_canExecuteChanged = new WeakCanExecuteChanged(this);
}