RetrieveCompletedEventHandler public sealed delegate RetrieveCompletedEventHandler : MulticastDelegate Documentation public RetrieveCompletedEventHandler(object TargetObject, IntPtr TargetMethod) public virtual IAsyncResult BeginInvoke(object sender, RetrieveCompletedEventArgs e, AsyncCallback DelegateCallback, object DelegateAsyncState) public virtual void EndInvoke(IAsyncResult DelegateAsyncResult) public virtual void Invoke(object sender, RetrieveCompletedEventArgs e)