protected override Task OnFileRecievingPrepared(FileRecievingPreparedEventArgs args)
{
Func <object, FileRecievingPreparedEventArgs, Task> handlerEvent = FileRecievingPreparedEvent;
if (handlerEvent == null)
{
return(Task.FromResult(false));
}
try
{
Delegate[] invocationList = handlerEvent.GetInvocationList();
var handlerTasks =
invocationList.Select(
delegatee => ((Func <object, FileRecievingPreparedEventArgs, Task>)delegatee)(this, args));
return(Task.WhenAll(handlerTasks));
}
catch (Exception ex)
{
return(Task.CompletedTask);
}
}
protected abstract Task OnFileRecievingPrepared(FileRecievingPreparedEventArgs args);