The id of the category or sub category in which the elements that this family could generate reside.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 2015

Syntax

C#
`public ElementId FamilyCategoryId { get; set; }`

Visual Basic
`Public Property FamilyCategoryId As ElementId Get Set`

Visual C++
`public: property ElementId^ FamilyCategoryId { ElementId^ get (); void set (ElementId^ value); }`

Exceptions

Exception	Condition
Autodesk.Revit.ExceptionsArgumentException	When setting this property: The input category id cannot be assigned as the new category for this family.
Autodesk.Revit.ExceptionsArgumentNullException	When setting this property: A non-optional argument was null
Autodesk.Revit.ExceptionsInvalidOperationException	When setting this property: The family is not an owner family for its own editable document.