我第二次使用“；getResponse()"；在HttpPost中，它只能一步一步地进行调试

我在VS2010 FrameWork 4.0上使用C#。我编写了一个控制台应用程序，它按顺序进行两次HttpPost调用。第二个调用在输入中使用第一个调用返回的内容。好吧，当我在调试模式下使用断点逐步（F10）运行应用程序时，一切都很好。但是，如果我删除断点并按"F5"，当我的代码在SECOND Http Post调用中执行"webRequest.getResponse（）"时，我会得到一个异常，可能是因为超时，因为错误大约需要60秒才能出现。

异常为：错误代码10054-远程主机强制关闭了连接。

这是我的应用程序使用的类（控制台应用程序调用方法"Search"）：

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Net;
using System.IO;
namespace MyNamespace
{
    public class MyClass
    {
        private string SearchId { get; set; }
        private string XmlOutputSearch { get; set; }
        public MyClass()
        {
            SearchId = "";
            XmlOutputSearch = "";
        }
        public string Search()
        {
            StartSearch();
            CheckResults();
            return XmlOutputSearch;
        }
        public void StartSearch()
        {
            string sInput = "[myStartSearchXmlRequest]";
            string sOutput = HttpPost(sInput);
            XmlDocument myXmlDoc = new XmlDocument();
            myXmlDoc.LoadXml(sOutput);
            SearchId = myXmlDoc.SelectSingleNode("//SearchId").InnerXml;
        }
        public void CheckResults()
        {
            string sInput = "[myCheckResultsXmlRequest using SearchId]";
            XmlOutputSearch = HttpPost(sInput);
        }
        private string HttpPost(string parameters)
        {
            try
            {
                HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.Create("[myURI]");
                webRequest.ContentType = "text/xml";
                webRequest.Method = "POST";
                byte[] bytes = Encoding.ASCII.GetBytes(parameters);
                Stream os = null;
                try
                { // send the Post
                    webRequest.ContentLength = bytes.Length;   //Count bytes to send
                    os = webRequest.GetRequestStream();
                    os.Write(bytes, 0, bytes.Length);         //Send it
                }
                catch (WebException ex)
                {
                    throw ex;
                }
                finally
                {
                    if (os != null)
                    {
                        os.Close();
                    }
                }
                try
                { // get the response
                    // Here I get the exception, on webRequest.GetResponse(), when HttpPost is called 
                    // by CheckResults, if not in Step-By-Step mode
                    using (HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse()) 
                    {
                        if (webResponse == null)
                        { return null; }
                        StreamReader sr = new StreamReader(webResponse.GetResponseStream());
                        string sReturn = sr.ReadToEnd().Trim();
                        sr.Close();
                        webResponse.Close();
                        webRequest.Abort();
                        return sReturn;
                    }
                }
                catch (WebException wex)
                {
                    // This exception will be raised if the server didn't return 200 - OK  
                    // Try to retrieve more information about the network error  
                    if (wex.Response != null)
                    {
                        using (HttpWebResponse errorResponse = (HttpWebResponse)wex.Response)
                        {
                            Console.WriteLine(
                                "The server returned '{0}' with the status code {1} ({2:d}).",
                                errorResponse.StatusDescription, errorResponse.StatusCode,
                                errorResponse.StatusCode);
                        }
                    }
                }
            }
            catch (Exception excep)
            {
                Console.WriteLine("Exception in WebResponse. " + excep.Message + " - " + excep.StackTrace);
            }
            return null;
        } // end HttpPost 
    }
}