Combined Parameters in Multi-Category Material Take-Off Schedule

[Anonymous]

Hey Everyone!

I'm trying to create a combined parameter (Material: Mark + Material: Location) in a multi-category material schedule and I am getting unexpected results when choosing the desired fields:

The weird thing is that when I open the combined parameter editor and add the fields, 'Material: Mark' changes to 'Mark,' which is definitely not the same parameter. The result is a combined parameter that is only half-baked. I suspect that this is because the schedule is returning the value of 'Mark' (which is null), instead of returning the value of 'Material: Mark.' Anyone come across this before and figure out a solution?

Version: 2017.2.3

[barthbradley]

I don't concatenate parameters usually, but "Material:Mark" gets named "Mark" for me as well. Happens with others as well. Additionally, that value doesn't get pulled into the combined parameter. 

Following...

[Anonymous]

Yeah - I was curious whether or not it was specific to my schedule. Thanks for verifying! 

[ToanDN · Accepted solution]

Only a selected few among the Material's parameters stick when you add them in a combined parameter.  You need to create new user parameters, assign them to material category, then they can be used in a Combined parameter in a schedule.

[barthbradley]

Interesting too: you cannot insert both Mark and Material:Mark. It's one or the other. 

...possibly because it's Friday. I'll try again on Monday.  

[barthbradley]

It's a known issue: 

https://knowledge.autodesk.com/support/revit-products/troubleshooting/caas/sfdcarticles/sfdcarticles...

[B4-DavidG]

The issue is still there in 2020 version unfortunately.