Revit 2025.3 API
DimensionFamily |
The family parameter label of the dimension.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
public FamilyParameter FamilyLabel { get; set; }
Public Property FamilyLabel As FamilyParameter Get Set
public: property FamilyParameter^ FamilyLabel { FamilyParameter^ get (); void set (FamilyParameter^ value); }
member FamilyLabel : FamilyParameter with get, set
Property Value
FamilyParameter
Exception | Condition |
---|---|
ArgumentException | Thrown when the family parameter's ParameterType is not suitable for this dimension. |
InvalidOperationException | Thrown when dimension can not be labeled. |
InvalidOperationException | Thrown when failed to get the BuiltInParameter DIM_LABEL. |

A dimension only can be labeled to a family parameter in a family document.
When the dimension is labeled by a reporting parameter, the dimension value drives the parameter value.
When the parameter is labeled by a non-reporting, the value of the parameter drives the dimension.
If the dimension is multi-segmented, each segment of the dimension is driven by the same parameter value.
Multi-segmented dimensions cannot be labeled by reporting parameters.
To unbind the family parameter, set this property to .
See Also