Revit 2025 API
Revit |
The base class used for pre events where the arguments must supply access to the document.

SystemObject
SystemEventArgs
Autodesk.Revit.DB.EventsRevitAPIEventArgs
Autodesk.Revit.DB.EventsRevitAPIPreEventArgs
Autodesk.Revit.DB.EventsRevitAPIPreDocEventArgs
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SystemEventArgs
Autodesk.Revit.DB.EventsRevitAPIEventArgs
Autodesk.Revit.DB.EventsRevitAPIPreEventArgs
Autodesk.Revit.DB.EventsRevitAPIPreDocEventArgs
More
Namespace: Autodesk.Revit.DB.Events
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
The RevitAPIPreDocEventArgs type exposes the following members.

Name | Description | |
---|---|---|
![]() | Cancellable |
Indicates whether an event may be cancelled by an event delegate.
(Inherited from RevitAPIEventArgs) |
![]() | Document | The document associated with the event. |
![]() | IsValidObject |
Specifies whether the .NET object represents a valid Revit entity.
(Inherited from RevitAPIEventArgs) |

Name | Description | |
---|---|---|
![]() | Cancel |
When the event is cancellable, may call the Cancel() method to cancel it.
(Inherited from RevitAPIPreEventArgs) |
![]() | Dispose | (Inherited from RevitAPIEventArgs) |
![]() | Equals | Determines whether the specified object is equal to the current object. (Inherited from Object) |
![]() | GetHashCode | Serves as the default hash function. (Inherited from Object) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object) |
![]() | IsCancelled |
Indicates whether the event is being cancelled.
(Inherited from RevitAPIEventArgs) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object) |
See Also
Reference

SystemObject
SystemEventArgs
Autodesk.Revit.DB.EventsRevitAPIEventArgs
Autodesk.Revit.DB.EventsRevitAPIPreEventArgs
Autodesk.Revit.DB.EventsRevitAPIPreDocEventArgs
Autodesk.Revit.DB.EventsDocumentClosingEventArgs
Autodesk.Revit.DB.EventsDocumentPrintingEventArgs
Autodesk.Revit.DB.EventsDocumentReloadingLatestEventArgs
Autodesk.Revit.DB.EventsDocumentSavingAsEventArgs
Autodesk.Revit.DB.EventsDocumentSavingEventArgs
Autodesk.Revit.DB.EventsDocumentSynchronizingWithCentralEventArgs
Autodesk.Revit.DB.EventsElementTypeDuplicatingEventArgs
Autodesk.Revit.DB.EventsExternalDataInstanceAddingIntoDocumentEventArgs
Autodesk.Revit.DB.EventsExternalDataInstanceRemovingFromDocumentEventArgs
Autodesk.Revit.DB.EventsExternalDataTypeServerFailureResolutionExecutingEventArgs
Autodesk.Revit.DB.EventsFamilyLoadingIntoDocumentEventArgs
Autodesk.Revit.DB.EventsFileExportingEventArgs
Autodesk.Revit.DB.EventsFileImportingEventArgs
Autodesk.Revit.DB.EventsViewExportingEventArgs
Autodesk.Revit.DB.EventsViewPrintingEventArgs
Autodesk.Revit.DB.EventsViewsExportingByContextEventArgs
Autodesk.Revit.UI.EventsTransferringProjectStandardsEventArgs
Autodesk.Revit.UI.EventsViewActivatingEventArgs
SystemEventArgs
Autodesk.Revit.DB.EventsRevitAPIEventArgs
Autodesk.Revit.DB.EventsRevitAPIPreEventArgs
Autodesk.Revit.DB.EventsRevitAPIPreDocEventArgs
Autodesk.Revit.DB.EventsDocumentClosingEventArgs
Autodesk.Revit.DB.EventsDocumentPrintingEventArgs
Autodesk.Revit.DB.EventsDocumentReloadingLatestEventArgs
Autodesk.Revit.DB.EventsDocumentSavingAsEventArgs
Autodesk.Revit.DB.EventsDocumentSavingEventArgs
Autodesk.Revit.DB.EventsDocumentSynchronizingWithCentralEventArgs
Autodesk.Revit.DB.EventsElementTypeDuplicatingEventArgs
Autodesk.Revit.DB.EventsExternalDataInstanceAddingIntoDocumentEventArgs
Autodesk.Revit.DB.EventsExternalDataInstanceRemovingFromDocumentEventArgs
Autodesk.Revit.DB.EventsExternalDataTypeServerFailureResolutionExecutingEventArgs
Autodesk.Revit.DB.EventsFamilyLoadingIntoDocumentEventArgs
Autodesk.Revit.DB.EventsFileExportingEventArgs
Autodesk.Revit.DB.EventsFileImportingEventArgs
Autodesk.Revit.DB.EventsViewExportingEventArgs
Autodesk.Revit.DB.EventsViewPrintingEventArgs
Autodesk.Revit.DB.EventsViewsExportingByContextEventArgs
Autodesk.Revit.UI.EventsTransferringProjectStandardsEventArgs
Autodesk.Revit.UI.EventsViewActivatingEventArgs