Revit 2025.3 API
EntitySetFieldType(Field, FieldType, Forge |
Stores the value of the field in the entity.
Namespace: Autodesk.Revit.DB.ExtensibleStorage
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
public void Set<FieldType>( Field field, FieldType value, ForgeTypeId unitTypeId )
Public Sub Set(Of FieldType) ( field As Field, value As FieldType, unitTypeId As ForgeTypeId )
public: generic<typename FieldType> void Set( Field^ field, FieldType value, ForgeTypeId^ unitTypeId )
member Set : field : Field * value : 'FieldType * unitTypeId : ForgeTypeId -> unit
Parameters
- field Field
- The field to update.
- value FieldType
- unitTypeId ForgeTypeId
- Identifier of the unit from which the value will be converted before storing. Must be compatible with the spec specified when creating the Schema.
Type Parameters
- FieldType
- The type of the field

Exception | Condition |
---|---|
ArgumentNullException | A non-optional argument was NULL |
InvalidOperationException | The Field belongs to a different Schema from this Entity, or this Entity is invalid. |
ArgumentException | Requested type does not match the field type. |
ArgumentException | The unitTypeId value is not compatible with the field description. |
ArgumentException | This field's subschema prevents writing. |
ArgumentException | Invalid floating-point value. |

The template parameter must match the type of the field (specified when creating the Schema) exactly; this method does not perform data type conversions. The types for containers are IList for arrays and IDictionary for maps.
This method only modifies your copy of the Entity. Store the Entity in an element or another Entity to save the new value. Write access check is not performed on each call to Set. Instead, write access is checked when you try to save the Entity in an Element or another Entity.
See Also