Container.CountItems C# (CSharp) Method

    public int CountItems()
    {
        int count=0;
                for (int i =0; i<=MaxCapacity(); i++ )
                {
                        if (items[i]!="")
                        {
                            count++;
                        }
                }
                return count;
    }

 public void OnClick()
 {
     if (Dragging == true)
     {
         return;
     }
     if ((UWCharacter.Instance.isRoaming == true) || (Quest.instance.InDreamWorld))
     {//No inventory use while using wizard eye.
         return;
     }
     if (UWCharacter.Instance.playerInventory.currentContainer == UWCharacter.Instance.playerInventory.playerContainer) // UWCharacter.Instance.name)
     {                                                                                                                  //Don't do anything on the top level
         UWCharacter.Instance.playerInventory.ContainerOffset = 0;
         BackpackBg.SetActive(false);
         return;
     }
     if (CurrentObjectInHand == null)
     {//Player has no object in their hand. We close up the container.
         ScrollButtonInventory.ScrollValue = 0;
         UWCharacter.Instance.playerInventory.ContainerOffset = 0;
         Container currentContainerObj = UWCharacter.Instance.playerInventory.currentContainer;
         UWCharacter.Instance.playerInventory.currentContainer = currentContainerObj.ContainerParent;
         currentContainerObj.isOpenOnPanel = false;
         //Close child containers as well
         CloseChildContainer(currentContainerObj);
         Container DestinationContainer = UWCharacter.Instance.playerInventory.currentContainer;
         if (UWCharacter.Instance.playerInventory.currentContainer == UWCharacter.Instance.playerInventory.playerContainer)
         {
             GetComponent <RawImage>().texture = UWCharacter.Instance.playerInventory.Blank;
             BackpackBg.SetActive(false);
             if ((DestinationContainer.CountItems() >= 8) && (DestinationContainer != UWCharacter.Instance.playerInventory.playerContainer))
             {
                 InvUp.SetActive(true);
                 InvDown.SetActive(true);
             }
             else
             {
                 InvUp.SetActive(false);
                 InvDown.SetActive(false);
             }
         }
         else
         {
             GetComponent <RawImage>().texture = DestinationContainer.transform.GetComponent <ObjectInteraction>().GetEquipDisplay().texture;
             BackpackBg.SetActive(true);
             if ((DestinationContainer.CountItems() >= 8) && (DestinationContainer != UWCharacter.Instance.playerInventory.playerContainer))
             {
                 InvUp.SetActive(true);
                 InvDown.SetActive(true);
             }
             else
             {
                 InvUp.SetActive(false);
                 InvDown.SetActive(false);
             }
         }
         for (short i = 0; i < 8; i++)
         {
             UWCharacter.Instance.playerInventory.SetObjectAtSlot((short)(i + 11), DestinationContainer.GetItemAt(i));
         }
     }
     else
     {
         if (UWCharacter.InteractionMode != UWCharacter.InteractionModePickup)
         {//Only allow this to happen when in pickup mode.
             return;
         }
         //Move the contents out of the container into the parent.
         //Container CurrentContainer = UWCharacter.Instance.playerInventory.currentContainer; //GameObject.Find(UWCharacter.Instance.playerInventory.currentContainer).GetComponent<Container>();
         Container DestinationContainer = UWCharacter.Instance.playerInventory.currentContainer.ContainerParent; //GameObject.Find(CurrentContainer.ContainerParent).GetComponent<Container>();
         if (Container.TestContainerRules(DestinationContainer, 11, false))
         {
             if (!CurrentObjectInHand.IsStackable())
             {
                 if (DestinationContainer.AddItemToContainer(CurrentObjectInHand))
                 {//Object has moved
                     CurrentObjectInHand = null;
                 }
             }
             else
             {
                 if (DestinationContainer.AddItemMergedItemToContainer(CurrentObjectInHand))
                 {//Object has moved
                     CurrentObjectInHand = null;
                 }
             }
         }
     }
 }