c# - 等待/异步问题

Question

我在 Windows 8 CP 上工作，发现在我的应用程序中，我无法正确地让新的异步/等待机制工作。

我向您展示的这种方法在作为单元测试(从单元测试调用)运行时会起作用，但在正常运行时，它不起作用!

StreamSocket _client;

private void Start() {
     SomeMethod();
     SomeOtherMethod();
}

private async void SomeMethod(string sample)
{
    var request = new GetSampleRequestObject(sample);
    byte[] payload = ConvertToByteArray(request, Encoding.UTF8);

    DataWriter writer = new DataWriter(_client.OutputStream);
    writer.WriteBytes(payload);
    await writer.StoreAsync(); // <--- after this executes, it exits the method and continues
    await writer.FlushAsync(); // <--- breakpoint never reaches here, instead
    writer.DetachStream();
}

private void SomeOtherMethod()
{
    string hello = "hello"; // <--- it skips everything and reaches here!
}

什么给了？

Answer 1

我认为您必须将 await 放在 Start 函数中初始 SomeMethod 调用的前面:

await SomeMethod();