M

RebarShapeDefinition.SetParameterFormula

Description:
Associate a formula with the parameter.

public void SetParameterFormula(
	ElementId paramId,
	string formula
)

Public Sub SetParameterFormula ( _
	paramId As ElementId, _
	formula As String _
)

public:
void SetParameterFormula(
	ElementId^ paramId, 
	String^ formula
)

Autodesk.Revit.DB.ElementId

paramId

Id of a parameter in the definition.
System.String

formula

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)"

Autodesk.Revit.Exceptions.ArgumentException

This RebarShapeDefinition does not have a value for the parameter paramId.
Autodesk.Revit.Exceptions.ArgumentNullException

A non-optional argument was NULL
Autodesk.Revit.Exceptions.DisabledDisciplineException

None of the following disciplines is enabled: Structural.