M

FamilyManager.AddParameter

Description:
Add a new family parameter with a given name.

Remarks:
This method can work even without any family type, but it cannot be assigned the value via FamilyManager.Set methods when there is no current type. To add a parameter of family type use the AddParameter overload that accepts a category instead.

Overloads (5):

AddParameter(ExternalDefinition,BuiltInParameterGroup,Boolean)

AddParameter(ExternalDefinition,ForgeTypeId,Boolean)

AddParameter(String,BuiltInParameterGroup,Category,Boolean)

AddParameter(String,ForgeTypeId,Category,Boolean)

AddParameter(String,ForgeTypeId,ForgeTypeId,Boolean)

public FamilyParameter AddParameter(
	string parameterName,
	ForgeTypeId groupTypeId,
	ForgeTypeId specTypeId,
	bool isInstance
)

Public Function AddParameter ( _
	parameterName As String, _
	groupTypeId As ForgeTypeId, _
	specTypeId As ForgeTypeId, _
	isInstance As Boolean _
) As FamilyParameter

public:
FamilyParameter^ AddParameter(
	String^ parameterName, 
	ForgeTypeId^ groupTypeId, 
	ForgeTypeId^ specTypeId, 
	bool isInstance
)

String

parameterName

The name of the new family parameter.
Autodesk.Revit.DB.ForgeTypeId

groupTypeId

The identifier of the new family parameter's parameter group.
Autodesk.Revit.DB.ForgeTypeId

specTypeId

The type of new family parameter.
Boolean

isInstance

Indicates if the new family parameter is instance or type.

Return Value FamilyParameter If creation was successful the new parameter is returned, otherwise an exception with failure information will be thrown.

Autodesk.Revit.Exceptions.ArgumentNullException

Thrown when the input argument-"parameterName"-isnullNothingnullptra null reference (Nothingin Visual Basic).
Autodesk.Revit.Exceptions.ArgumentException

Thrown when the input argument-"parameterName"-is already in use, or when the input argument -"specTypeId" is an invalid type, or the input parameter group cannot be assigned to the new parameter.
Autodesk.Revit.Exceptions.InvalidOperationException

Thrown when the family parameter creation failed. Or trying to add an instance parameter of image type.