This property indicates whether this parameter should be hidden from the properties palette
when it doesn't have a value.
Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0)
Syntax
C#
public bool HideWhenNoValue { get; set; }Property Value
Boolean
True if the parameter should be hidden when it has no value, False if the parameter should
remain visible in the properties palette even when it doesn't have a value.
The default is false
See Also
Reference