public UIGenericCommand(Action <T> commandAction, Func <T, bool> canExecute = null)
{
if (commandAction == null)
{
throw new ArgumentNullException(nameof(commandAction));
}
m_CommandAction = new WeakAction <T> (commandAction);
if (canExecute != null)
{
m_CanExecute = new WeakFunc <T, bool> (canExecute);
}
}