first thats not a casting issue. second you didnt give us any information to work from so how do you expect us to help you. we need to know how your inventory is setup, how it functions and how you would like it to function. is this a single player game or a multiplayer? is it a shared inventory or is it separate for each character? these are basic questions just to get started with. the bottom line here is you need to give information to work with otherwise you wont get any help from anyone.