private DemoCollection(
ReadOnlyCollection <T> sourceItems,
ObservableCollection <T> activeItems,
int minCount,
int maxCount,
int initialCount)
: base(activeItems)
{
m_minCount = minCount;
m_maxCount = maxCount;
m_initialCount = initialCount;
m_activeItems = activeItems;
m_sourceItems = sourceItems;
m_addCommand = ActionICommand.Create(Add, canAdd, out m_onCanAddChanged);
m_insertCommand = ActionICommand.Create(Insert, canAdd, out m_onCanInsertChanged);
m_removeCommand = ActionICommand.Create(Remove, canRemove, out m_onCanRemoveChanged);
m_moveCommand = ActionICommand.Create(Move, canMove, out m_onCanMoveChanged);
m_changeCommand = ActionICommand.Create(Change, canChange, out m_onCanChangeChanged);
m_resetCommand = ActionICommand.Create(Reset);
activeItems.CollectionChanged += delegate(object sender, NotifyCollectionChangedEventArgs e)
{
m_onCanRemoveChanged();
m_onCanAddChanged();
m_onCanMoveChanged();
m_onCanChangeChanged();
m_onCanInsertChanged();
};
}
public static ActionICommand Create(Action action, Func <bool> canExecuteFunction, out Action canExecuteChanged)
{
Util.RequireNotNull(action, "action");
ActionICommand command = new ActionICommand(action, canExecuteFunction);
canExecuteChanged = command.onCanExecuteChanged;
return(command);
}
public static ActionICommand Create(Action action, Func<bool> canExecuteFunction, out Action canExecuteChanged)
{
Util.RequireNotNull(action, "action");
ActionICommand command = new ActionICommand(action, canExecuteFunction);
canExecuteChanged = command.onCanExecuteChanged;
return command;
}