Revit 2025.3 API
Rebar |
Associate a formula with the parameter.
Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
public void SetParameterFormula( ElementId paramId, string formula )
Public Sub SetParameterFormula ( paramId As ElementId, formula As String )
public: void SetParameterFormula( ElementId^ paramId, String^ formula )
member SetParameterFormula : paramId : ElementId * formula : string -> unit
Parameters
- paramId ElementId
- Id of a parameter in the definition.
- formula String
- The formula expressed as a string. The string is exactly what a user would type into the Family Types dialog, e.g. "Total Length*3.14159*(Bar Diameter/2)*(Bar Diameter/2)"

Exception | Condition |
---|---|
ArgumentException | This RebarShapeDefinition does not have a value for the parameter paramId. |
ArgumentNullException | A non-optional argument was null |
See Also