Question

我有一个为我创建的类-getXML（）生成XML的方法。这可以通过以下方法调用：

private void send_Response()
    {
        String xmlUrl = ((App)Application.Current).Resources["xmlUrl"].ToString();
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(new Uri(xmlUrl,              UriKind.Absolute));
        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";
        request.BeginGetRequestStream(new AsyncCallback(RequestReady), request);
    }

    void RequestReady(IAsyncResult asyncResult)
    {
        HttpWebRequest request = (HttpWebRequest)asyncResult.AsyncState;
        Stream stream = request.EndGetRequestStream(asyncResult);
        StreamWriter writer = new StreamWriter(stream);
        writer.WriteLine("assessmentXml=" + assessment.getXML(testComplete));
        writer.Flush();
        writer.Close();

        request.BeginGetResponse(new AsyncCallback(ResponseReady), request);
    }

    void ResponseReady(IAsyncResult asyncResult)
    {
        HttpWebRequest request = asyncResult.AsyncState as HttpWebRequest;
        HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(asyncResult);

        Stream s = response.GetResponseStream();
        StreamReader sr = new StreamReader(s);

        String line = "";
        String Result = "";

        line = sr.ReadLine();
        while (line != null)
        {
            Result += line;
            line = sr.ReadLine();
        }

        s.Close();
    }

getXML本身如下：

public String getXML(bool end)
    {
        StringWriter output = new StringWriterWithEncoding(Encoding.UTF8);
        XmlWriterSettings ws = new XmlWriterSettings();
        ws.Indent = true;
        ws.Encoding = new UTF8Encoding(true);
        ws.ConformanceLevel = ConformanceLevel.Document;

        using (XmlWriter writer = XmlWriter.Create(output, ws))
        {
            writer.WriteStartElement("root");

            if (end)
            {
                writer.WriteAttributeString("testComplete", "true");
            }
            else
            {
                writer.WriteAttributeString("testComplete", "false");
            }

            for (int i = 0; i < theSections.Count(); i++)
            {
                writer.WriteStartElement("section");
                writer.WriteAttributeString("id", theSections.ElementAt(i).Id.ToString());
                writer.WriteAttributeString("title", theSections.ElementAt(i).Name.ToString());
                writer.WriteAttributeString("completed", theSections.ElementAt(i).Completed.ToString());

                for (int j = 0; j < theSections.ElementAt(i).Elements.Count(); j++)
                {
                    writer.WriteStartElement(theSections.ElementAt(i).Elements.ElementAt(j).Name.ToString());

                    for (int a = 0; a < theSections.ElementAt(i).Elements.ElementAt(j).Attributes().Count(); a++)
                    {
                        writer.WriteAttributeString(theSections.ElementAt(i).Elements.ElementAt(j).Attributes().ElementAt(a).Name.ToString(), theSections.ElementAt(i).Elements.ElementAt(j).Attributes().ElementAt(a).Value);
                    }

                    for (int c = 0; c < theSections.ElementAt(i).Elements.ElementAt(j).Elements().Count(); c++)
                    {
                        writer.WriteStartElement(theSections.ElementAt(i).Elements.ElementAt(j).Elements().ElementAt(c).Name.ToString());
                        writer.WriteString(theSections.ElementAt(i).Elements.ElementAt(j).Elements().ElementAt(c).Value);
                        writer.WriteEndElement();
                    }

                    writer.WriteEndElement();
                }
                writer.WriteEndElement();
            }

            writer.WriteEndDocument();
            writer.Flush();
            writer.Close();

        }
        return output.ToString();
    }

（抱歉代码数量过多）。

一切正常，我可以看到xml输出。但现在我想在getXML（）函数中添加更多代码，而Silverlight就不会让我这么做。即使是简单的MessageBox.Show（“something”）也不会显示，整个方法现在无法生成任何XML。话虽如此，Visual Studio中没有生成错误或警告。

我在同一个.cs文件的其他区域添加了新代码，一切正常，只是在这一个方法中。我尝试过重建但也无济于事，所以我很困惑这是怎么回事。它是Visual Studio的错误吗？

提前感谢您的帮助。

Answer 1

我已经开始工作了。没有想法为什么。我认为Cross Thread Error与messageBox是UI的一部分有关，所以我删除了它，只是添加了一些新的xmlwriter东西......而且它有效。我之前尝试过这个并没有用，所以我会继续关注它，但到目前为止还是那么好。仍然困惑，但没关系。

奇怪的Silverlight问题

1 个答案: