ActivitySource.HasListeners 方法

定义

检查此活动源是否有任何侦听器。Checks if there are any listeners for this activity source.

public:
 bool HasListeners();
public bool HasListeners ();
member this.HasListeners : unit -> bool
Public Function HasListeners () As Boolean

返回

Boolean

如果已为此活动源注册侦听器,则为 true;否则为 falsetrue if there is a listener registered for this activity source; otherwise, false.

适用于