Lock Inventory???

I was wondering is there anyway to lock an item in an inventory without using a shitload of triggers. I could make the inventory lock with triggers, but that would require a lot of triggers and i dont want to overload my map if there is a much easier way. When i say locked item, i mean u cant move it from slot to slot, drop, or use. the latter 2 are easy to do, but stopping from moving slot to slot is a bit harder. It would require me to have a conditional checking for each slot and depending what item was misplaced, would where the misplaced item would go back too. IS THERE AN EASIER WAY????

Instead of 'locking' the inventory of a hero why not create an array for each player that stores what items he/she has. Then because they can't drop them, when you remove and give that hero a different item just edit the array to match.

InventoryP1[0] = Armor

you now know what items they have and it doesn't matter where they happen to move them, so when you remove(InventoryP1[0]) and CreateItemForHero(...), set InventoryP1[0] = NewArmor, the slot where they had the old armor will now be replaced with the new armor and the array will be updated.

if i wanted to oraganize them however (I have items determining a units stats, armor, dam, speed,....), then i would need them to stay in each slot. The array idea is a very good idea, but i also have other triggers that work depending on slot status. So i need another way to keep them in the same place, thx for the idea though, i may use that in another map.