Hi There, I’m trying to make a script which autopopulates which revit family type tag is used based on certain parameter information of the host element. I got something to kind of work in dynamo which assigns family type tags based on a list of values… but there is nothing to match to make sure the tag is properly referencing the value from it’s specific element. My question is – does anyone know a good way to tap into revits api either in dynamo or in python shell to grab which tags are associated with what elements specifically?
Hi @acher92, let me google that for you 
The first result for the terms “revit api tags association” is this article from jeremy tammik, that states that there is no direct way to do that, but offers a couple of workarounds.
The most direct way to do this would be:
- Get elements you want to query
- Get all tags of given type
- Ask them for their tagged elements
- Check which of those tags are tagging the original elements
Key methods/properties to use along the way:
Example of a filtered element collector targeting a builtin parameter:
REVIT_DOC = revit.doc
BIP_TYPENAME = DB.BuiltInParameter.SYMBOL_NAME_PARAM
col_rule = DB.ParameterFilterRuleFactory.CreateEqualsRule(DB.ElementId(BIP_TYPENAME), "Your type name", False)
col_filt = DB.ElementParameterFilter(col_rule)
viewportTypes_all = DB.FilteredElementCollector(REVIT_DOC).WhereElementIsElementType().WherePasses(col_filt).ToElements()
Tagged elements:
Hope that helps!
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