Component.CanRaiseEvents Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets a value indicating whether the component can raise an event.
protected:
virtual property bool CanRaiseEvents { bool get(); };
protected virtual bool CanRaiseEvents { get; }
member this.CanRaiseEvents : bool
Protected Overridable ReadOnly Property CanRaiseEvents As Boolean
Property Value
true
if the component can raise events; otherwise, false
. The default is true
.
Remarks
The default implementation of this property always returns true
. Classes that inherit from the Component class should override this property to provide the ability to disable the raising of events. For example, in the Control class, if the control is being hosted as an ActiveX control, the CanRaiseEvents property returns false
if the ActiveX control has its events frozen.
Notes to Inheritors
If you override this method in a deriving class and change it to return false
, the EventHandlerList collection returned by the Events property returns null
for an event. Events can still be added and removed from the collection, but the collection's Item[Object] property will always return null
.
Applies to
See also
.NET
피드백
https://aka.ms/ContentUserFeedback
출시 예정: 2024년 내내 콘텐츠에 대한 피드백 메커니즘으로 GitHub 문제를 단계적으로 폐지하고 이를 새로운 피드백 시스템으로 바꿀 예정입니다. 자세한 내용은 다음을 참조하세요.다음에 대한 사용자 의견 제출 및 보기