Google雲端存儲.Net API：使用UploadAsync設置AsyncState

Question

我試圖在UploadAsync完成後將一些數據傳遞給continuation方法。我可以通過使用該方法讀取AsyncState，但我不知道如何從外部設置它？

這裏是我到目前爲止的例子：

Action<Task<IUploadProgress>> myAction = (input) => 
{ 
    object asyncState = input.AsyncState; 
    IUploadProgress result = input.Result; 
}; 

Task<IUploadProgress> uploadTask = service.Objects.Insert(myObject, bucketName, stream, "").UploadAsync(); 

uploadTask.ContinueWith(myAction); 

uploadTask.Wait(); 

感謝。

Answer 1

我會做類似如下：

var insertMediaReq = service.Objects.Insert(myObject, bucketName, stream, ""); 
Task<IUploadProgress> uploadTask = insertMediaReq.UploadAsync(); 
uploadTask.ContinueWith(t => 
{ 
    // Here you can use t.Result. 
    // But I don't get it. what are you trying to do here? 
});