小编Sun*_*uny的帖子

我有一种情况,我必须HttpResponseMessage在一个catch语句中提取一个Response(),但我认为不能完成(await在catch中使用).此外,如果我在捕获后执行此操作,则HttpResponseMessage消息将显示为"已处置".码:

 private async void MakeHttpClientPostRequest()
 {
     HttpResponseMessage response = null;
     try
     {
         HttpClient httpClient = new HttpClient();
         httpClient.Timeout = TimeSpan.FromSeconds(15);
         HttpContent httpContent = null;
         if (postJSON != null)
         {
             httpContent = new StringContent(postJSON);
             httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
         }

         response = await httpClient.PostAsync(url, httpContent);
         if (response != null)
         {
             response.EnsureSuccessStatusCode();
             netResults = await response.Content.ReadAsStringAsync();
         }

         if (this.convertedType != null)
         {
             MemoryStream assetReader = GetMemoryStreamFromString(netResults);
             assetReader.Position = 0;
             object value = fromJSON(assetReader, this.convertedType);
             networkReqSuccessWithObjectCallback(this, …

我想在我的win phone8应用程序中添加LongListSelector中的多个选项,但我无法找到一种方法来做到这一点？

它甚至支持吗？

2.如果(1.)原来是'不'那么如何才能实现？

(赢得phone8 + XAML + C#)