RevitAPIPreEventArgs Class

The class is used as a base class for the arguments for any pre-event.

Inheritance Hierarchy

System.Object
  System.EventArgs
    Autodesk.Revit.DB.Events.RevitAPIEventArgs
      Autodesk.Revit.DB.Events.RevitAPIPreEventArgs
        More

Namespace: Autodesk.Revit.DB.Events
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)

public class RevitAPIPreEventArgs : RevitAPIEventArgs

The RevitAPIPreEventArgs type exposes the following members.

	Name	Description
	Cancellable	Indicates whether an event may be cancelled by an event delegate. (Inherited from RevitAPIEventArgs)
	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.
	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)

A pre-event is the event raised before executing the process that was related with the event.