protected override void OnDragDropRelease(GameObject surface) { base.OnDragDropRelease(surface); if(surface != null){ if(surface .tag ==Tags .Inventory_Item_grid){ if(surface ==this.transform .parent .gameObject){ }else{ InventoryItemGrid oldParent = this.transform.parent.GetComponent(); this.transform.parent = surface.transform;ResetPosition(); InventoryItemGrid newParent = surface.GetComponent(); newParent.SetId(oldParent.id ,oldParent .num ); oldParent.CleaRInfo(); } }else if(surface . tag==Tags .Inventory_Item ){ InventoryItemGrid grid1 = this.transform.parent.GetComponent(); InventoryItemGrid grid2 = surface.transform.parent . GetComponent(); int id = grid1.id; int num = grid2.num; grid1.SetId(grid2.id, grid2.num); grid2.SetId(id,num); } } ResetPosition (); }