FamilyTypeAsDouble Method

Provides access to the double precision number of the given family parameter.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public double? AsDouble(
	FamilyParameter familyParameter
)

Public Function AsDouble ( 
	familyParameter As FamilyParameter
) As Double?

public:
Nullable<double> AsDouble(
	FamilyParameter^ familyParameter
)

member AsDouble : 
        familyParameter : FamilyParameter -> Nullable<float>

Parameters

familyParameter FamilyParameter

Return Value

NullableDouble
The double value contained in the parameter. Returns if the storage type of the input argument is not double type or this parameter has no value.

Exceptions

Exception	Condition
ArgumentNullException	Thrown when the input argument-"familyParameter"-is .
ArgumentException	Thrown if the input argument-"familyParameter"-is invalid,

Reference

FamilyType Class

Autodesk.Revit.DB Namespace