Question

我在伙伴关系中承担以下任务。 NET 欲免以文件形式提出新请求的网播。似乎在我的当地,但在主机上,档案没有保存,我的记录显示现状。

我的理解是,这必须涉及未经处理的例外情况。我怎么能够发现这些例外是什么,以便我能够解决这些问题?

    // Save file
    MultipartFormDataStreamProvider provider = new MultipartFormDataStreamProvider(HttpContext.Current.Server.MapPath("~/Files"));
    Task<IEnumerable<HttpContent>> task = Request.Content.ReadAsMultipartAsync(provider);

    return task.ContinueWith<string>(contents =>
    {
        string filename = provider.BodyPartFileNames.First().Value;

        FileInfo file = new FileInfo(filename);

        Log.LogMessage("Status: " + task.Status.ToString() + " File Exists: " + file.Exists);

        // Delete excel file when complete.
        File.Delete(filename);

        // Return message to user.
        return "Complete";

    }, TaskScheduler.FromCurrentSynchronizationContext());

Answer 1

You need to have another continuation to look at the exception:

Task task1 = () => ....;
task1.ContinueWith((t) => if(t.IsFaulted) Trace.WriteLine(t.Exception.ToString()));
return task1;

因此,在继续确定初步任务时,trick计要继续。

友情链接