FreeItemSlots not returning values

Hey,

I am trying to use the FreeItemSlots to check my available inventory space. But no matter how I try it, it seems either there is no value returned or it is smaller than all numbers I entered. Any hint how to get the correct amount of free space in my inventory?

Code:

<If Condition="FreeItemSlots &lt; 2">
    <LogMessage Message="Less than 2" />
</If>		

 

Try

Code:

<If Condition="FreeItemSlots() &lt; 2">
    <LogMessage Message="Less than 2" />
</If>