Revit 2026 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: 26.0.4.0 (26.0.4.0)
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.
See Also