c# - 如何知道 .net WebMethod 何时返回其值？

Question

我是 c# Web 服务的新手。我有一个将返回大量数据的 WebMethod。因此应该可以查看传输的状态。我怎么知道 WebMethod 是否以及何时返回了它的值？我可以绑定(bind)到事件或其他东西吗？

有问题的方法如下所示:

[WebMethod]
public List<TEST.Models.ArticleModel> GetArticles(string terminalSerial)
{
    Communication comm = new Communication {
        StartDate = DateTime.Now,
        Status = "Started"
    };
    var terminal = (from t in context.Terminals
                    where t.SerialNumber == terminalSerial
                    select t).FirstOrDefault();
    var articles = from a in context.Articles
                   where a.CountryID == terminal.Customer.CountryID
                      && a.LastEdit > terminal.LastSync
                   select new TEST.Models.ArticleModel {
                       ArticleID = a.ArticleID,
                       ArticleGroupID = a.ArticleGroupID,
                       ArticleGroupName = a.ArticleGroup.Name,
                       CountryName = a.Country.Name,
                       Description = a.Description,
                       EAN = a.EAN,
                       SAPID = a.SAPID
                   };
    terminal.LastSync = DateTime.Now;
    comm.TerminalID = terminal.TerminalID;
    context.SubmitChanges();
    return articles.ToList();
}

Answer 1

服务器端:
使用日志记录或将列表写入 nrmal 文件，如下所示:

[WebMethod]
public List<TEST.Models.ArticleModel> GetArticles(string terminalSerial)
{

//..... your code here

System.IO.StreamWriter file = new System.IO.StreamWriter("c:\\test.txt");
List<TEST.Models.ArticleModel> theList = articles.ToList();
file.WriteLine("you have "+ theList.Count );
for(ArticleModel articleModel : theList)
   file.WriteLine(articleModel.ToString());

file.Close();
}

在客户端也一样，调用 WebService 并将结果写入文件。