Revit 2025 API
IFailures |
An interface that may be used to perform a preprocessing step to either filter out anticipated transaction failures
or to mark certain failures as non-continuable.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
The IFailuresPreprocessor type exposes the following members.
Methods
Name | Description | |
---|---|---|
![]() | PreprocessFailures | This method is called when there have been failures found at the end of a transaction and Revit is about to start processing them. |

This interface, if provided, is invoked when there are failures found at the end of a transaction.
An instance of this interface can be set in the failure handling options of transaction object.

public class RoomWarningSwallower : IFailuresPreprocessor { public FailureProcessingResult PreprocessFailures(FailuresAccessor failuresAccessor) { IList<FailureMessageAccessor> failList = new List<FailureMessageAccessor>(); // Inside event handler, get all warnings failList = failuresAccessor.GetFailureMessages(); foreach (FailureMessageAccessor failure in failList) { // check FailureDefinitionIds against ones that you want to dismiss, FailureDefinitionId failID = failure.GetFailureDefinitionId(); // prevent Revit from showing Unenclosed room warnings if (failID == BuiltInFailures.RoomFailures.RoomNotEnclosed) { failuresAccessor.DeleteWarning(failure); } } return FailureProcessingResult.Continue; } }
Public Class RoomWarningSwallower Implements IFailuresPreprocessor Public Function PreprocessFailures(failuresAccessor As FailuresAccessor) As FailureProcessingResult Implements IFailuresPreprocessor.PreprocessFailures Dim failList As IList(Of FailureMessageAccessor) = New List(Of FailureMessageAccessor)() ' Inside event handler, get all warnings failList = failuresAccessor.GetFailureMessages() For Each failure As FailureMessageAccessor In failList ' check FailureDefinitionIds against ones that you want to dismiss, Dim failID As FailureDefinitionId = failure.GetFailureDefinitionId() ' prevent Revit from showing Unenclosed room warnings If failID = BuiltInFailures.RoomFailures.RoomNotEnclosed Then failuresAccessor.DeleteWarning(failure) End If Next Return FailureProcessingResult.[Continue] End Function End Class
No code example is currently available or this language may not be supported.
No code example is currently available or this language may not be supported.
See Also