The offset from the top reference.

Namespace: Autodesk.Revit.DB.Architecture
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 2019

Syntax

C#
`public double TopOffset { get; set; }`

Visual Basic
`Public Property TopOffset As Double Get Set`

Visual C++
`public: property double TopOffset { double get (); void set (double value); }`

Exceptions

Exception	Condition
Autodesk.Revit.ExceptionsArgumentOutOfRangeException	When setting this property: The given value for topOffset must be no more than 30000 feet in absolute value.