任务状态：等待激活-DownloadStringTaskAsync -WP8

任务的状态始终是“等待激活”。任务的结果=“”。 我不明白为什么…感谢您的帮助UI调用GetDocLibs方法。

public class ServerFunctions { public static List GetDocLibs(bool onlyDocLibPerso) { string xmlContent = GetXml(); List result = BdeskDocLib.GetListFromXml(xmlContent, onlyDocLibPerso); return result; } private static String GetXml() { Tasktask=requesteur.Query(dataRequestParam); task.Wait(); xmlResult = task.Result; return xmlResult; } } public class DataRequest { public Task Query(DataRequestParam dataRequestParam) { try { WebClient web = new WebClient(); if (!string.IsNullOrEmpty(dataRequestParam.AuthentificationLogin)) { System.Net.NetworkCredential account = new NetworkCredential(dataRequestParam.AuthentificationLogin, dataRequestParam.AuthentificationPassword); web.Credentials = account; } return web.DownloadStringTaskAsync(dataRequestParam.TargetUri).ConfigureAwait(false); } catch(WebException we) { MessageBox.Show(we.Message); return null; } } } 

Answer 1

我所有的方法都需要异步。

 public class ServerFunctions { public static async Task> GetDocLibs(bool onlyDocLibPerso) { string xmlContent = await GetXml(); List result = BdeskDocLib.GetListFromXml(xmlContent, onlyDocLibPerso); return result; } private async static Task GetXml() { Tasktask=requesteur.Query(dataRequestParam); task.Wait(); xmlResult = task.Result; return xmlResult; } }