Revit Event Args Cancel Property

Indicates whether the event is being cancelled. When the event is cancellable, set the property to True to cancel it.

Namespace: Autodesk.Revit.DB.Events
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public virtual bool Cancel { get; set; }

Public Overridable Property Cancel As Boolean
	Get
	Set

public:
virtual property bool Cancel {
	bool get ();
	void set (bool value);
}

abstract Cancel : bool with get, set
override Cancel : bool with get, set

Property Value

Boolean

Exceptions

Exception	Condition
InvalidOperationException	Thrown if an event delegate attempts to cancel a non-cancellable event.

Remarks

If an event delegate wishes to cancel the event, it should set the value of this property to True. Not every event is cancellable. Whether or not an event may be cancelled is indicated by the value of 'Cancellable' property.

Reference

RevitEventArgs Class

Autodesk.Revit.DB.Events Namespace