Checks whether a field can be used with a value presence-based filter.
Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)
Since: 2020
 Syntax
Syntax
| C# | 
|---|
| public bool CanFilterByValuePresence( ScheduleFieldId fieldId ) | 
| Visual Basic | 
|---|
| Public Function CanFilterByValuePresence ( _ fieldId As ScheduleFieldId _ ) As Boolean | 
| Visual C++ | 
|---|
| public: bool CanFilterByValuePresence( ScheduleFieldId^ fieldId ) | 
Parameters
- fieldId
- Type: Autodesk.Revit.DB..::..ScheduleFieldId
 The ID of the field to check.
Return Value
True if the field can be used with a value presence filter, false otherwise. Remarks
Remarks
   The value presence filter types are HasValue and HasNoValue.
 Exceptions
Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions..::..ArgumentException | fieldId is not the ID of a field in this ScheduleDefinition. | 
| Autodesk.Revit.Exceptions..::..ArgumentNullException | A non-optional argument was NULL | 





