Getting inventory slot in chest? (C#)

Hi, its possible to get the slot position of an item in a chest.

i can loop all aviable items in a inventory but i need to get the slot numer eg: slot1 = emty, slot2 = bla, slot3=emtpy.....

thanks for help

 

every item has a Field "position":

Code:

// Item
public int position;

An ItemCointainer can be searched for an item with (return an Item):

Code:

FindItemByItemID(int itemid)FindItemByUID(uint iUID)