Method updateBackSelected

MyGUIEngine/src/MyGUI_MultiListBox.cpp:143–159

	}

	void MultiListBox::updateBackSelected(size_t _index)
	{
		if (_index == ITEM_NONE)
		{
			for (auto& iter : mVectorColumnInfo)
			{
				iter.list->clearIndexSelected();
			}
		}
		else
		{
			for (auto& iter : mVectorColumnInfo)
			{
				iter.list->setIndexSelected(_index);
			}
		}
	}

	void MultiListBox::setIndexSelected(size_t _index)
	{