Unique Value in Family Parameter

[se.ha]

Hello community

I am currently working on a Revit family and would like to implement a warning that is displayed when multiple instances of this family have the same value for a specific parameter. Similar to door or room numbers, I want to ensure that the values are unique. Any ideas?

Thank you

[Mike.FORM]

If I am understanding this correctly you are wanting to compare a specific parameter (could be a length, an integer, text, etc.) of one family instance or type and see if another family instance or type has the same vale?

This can be done in using dynamo but I do not have the experience to help with this one.

There may also be a add-in that does this.

[se.ha]

Yes. The user has to enter a value und Revit should check if another instance of the family already has the same value. Like the "Elements have duplicate "Mark" values"-warning in doors.

I know how to do it in dynamo - but I need instant feedback for my co-workers.

[Mike.FORM]

The only other way would be to use a schedule which is sorted using the parameter you are checking and then uncheck the itemize every instance so it groups them and then add the count parameter to the schedule.