Method insertItemAt

MyGUIEngine/src/MyGUI_ComboBox.cpp:334–339

	}

	void ComboBox::insertItemAt(size_t _index, const UString& _item, Any _data)
	{
		mList->insertItemAt(_index, _item, _data);
		mItemIndex = ITEM_NONE; //FIXME
		mList->setIndexSelected(mItemIndex); //FIXME
	}

	void ComboBox::removeItemAt(size_t _index)
	{