AsyncEventHandler 委托

定义

异步事件的处理程序,该处理程序返回 Task

public delegate System::Threading::Tasks::Task ^ AsyncEventHandler(System::Object ^ sender, EventArgs ^ args);
public delegate System.Threading.Tasks.Task AsyncEventHandler(object sender, EventArgs args);
type AsyncEventHandler = delegate of obj * EventArgs -> Task
Public Delegate Function AsyncEventHandler(sender As Object, args As EventArgs) As Task 

参数

sender
Object

事件的发送方。

args
EventArgs

参数

返回值

Task

完成信号处理完成的任务。

适用于