The offset of stairs down text.
Namespace: Autodesk.Revit.DB.Architecture
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
public XYZ DownTextOffset { get; set; }
Exception
Condition
When setting this property: A non-optional argument was null
When setting this property: The type of this stairs path is not automatic up/down direction. -or- When setting this property: The stairs path doesn’t show down text so the data being set is inapplicable.
The z direction makes no sense in API.