Revit 2026 API
External |
The full class name for the class providing the entry point to decide availability of this menu item.
Namespace: Autodesk.Revit.UI
Assembly: RevitAPIUI (in RevitAPIUI.dll) Version: 26.0.4.0 (26.0.4.0)
Syntax
public string AvailabilityClassName { get; set; }
Public Property AvailabilityClassName As String Get Set
public: property String^ AvailabilityClassName { String^ get (); void set (String^ value); }
member AvailabilityClassName : string with get, set
Property Value
String
Exception | Condition |
---|---|
ArgumentNullException | When setting this property: A non-optional argument was null |

This is the class implementing IExternalCommandAvailability interface.
See Also