Property Expression Issue

[Samuel1997]

Hey guys, would anyone have any input into why i am unable to use certain stair autotext properties in expressions. I am creating a standard custom label that depending on the element links the relevant data. for instance i want to link the riser height & tread data into the label, but when ever i add either default riser height, or stair 3d height, i get the following evaluation.

Now i definitely have the stair elements classification set to allow it, aswell as vice versa, so confused as to why it continues to show this.

Cheers guys, 

Many thanks Samuel h

[Laszlo Nagy · Accepted solution]

The screenshot says:

"Property is not available for this Element's Classification".

So, make sure that your Stair is classified correctly in the Stair Settings Dialog, and also make sure that you set the Property in the "Availability for Classification" panel of the Property Manager Dialog to be available for the Classification you set in the Stair Settings Dialog. 

[Samuel1997]

The actual stair i was using had not been classified, biggest face palm of all time, thanks laszlo, fresh eyes always appreciated.

Kind regards samuel h